WO1999047267A1 - Apparatus for integrating processing of magnetic particles, and method of controlling the same - Google Patents
Apparatus for integrating processing of magnetic particles, and method of controlling the same Download PDFInfo
- Publication number
- WO1999047267A1 WO1999047267A1 PCT/JP1999/001365 JP9901365W WO9947267A1 WO 1999047267 A1 WO1999047267 A1 WO 1999047267A1 JP 9901365 W JP9901365 W JP 9901365W WO 9947267 A1 WO9947267 A1 WO 9947267A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- nozzle
- particle processing
- magnetic force
- integrated device
- Prior art date
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- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
- B01L3/50853—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates with covers or lids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1065—Multiple transfer devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/25375—Liberation or purification of sample or separation of material from a sample [e.g., filtering, centrifuging, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/2575—Volumetric liquid transfer
Definitions
- the present invention relates to a magnetic particle processing integrated device that integrates processing related to magnetic particles contained in a fluid such as a liquid or a gas, and a control method thereof.
- the present invention relates to medicine, In various fields such as agriculture, engineering, science, and pharmacy, for example, useful substances or target substances such as immunological substances such as antibodies and antigens, genetic substances (DNA, RNA, mRNA, etc.), bacteria, and other medical drugs Reaction, separation, quantification, dispensing, clarification, concentration, stirring, suspension, dilution, etc., as well as observation, extraction, recovery, isolation, labeling, etc.
- the present invention relates to a magnetic particle processing integrated device applied to medical treatment, inspection, diagnosis, treatment, research, quantitative qualitative measurement, and the like using magnetic particles capable of performing the method, and a control method thereof.
- the pit device is provided with a magnet driving device for driving and controlling the magnetic field source M and the holding body V.
- the pit device includes a magnetic field source M having a magnet portion and a holding body V having a holding portion, which are pivotally supported by an elevating mechanism 0 so as to be openable and closable.
- the holding member V and the magnetic field source M can be simultaneously held by the holding member V and the magnetic field source M, so that the magnetic field source M is reliably brought close to or away from the chip T.
- the pipetting devices should be arranged in a row as shown in FIG. A multi-pit arrangement was used.
- the magnetic field is provided not only to the portion of the tip but also to each tip.
- a mechanism to drive or remove a magnetic field in a pipe by driving a permanent magnet is provided not only to the portion of the tip but also to each tip.
- the present invention has been made to solve the above problems, and the purpose of the present invention is to firstly, by highly integrating each nozzle and a portion that applies a magnetic field to each nozzle, It is an object of the present invention to provide a magnetic particle processing integrated device capable of performing simultaneous processing with high accuracy, speed, and efficiency by integrating magnetic particle processing and a control method thereof.
- the structure of components per unit can be simplified, and an object is to provide a magnetic particle processing integrated device with high cost performance and a control method therefor. It is.
- the present invention provides an integrated device and a control method thereof.
- the purpose of the present invention is to provide a magnetic particle processing integrated device that can easily achieve automation by minimizing human operations when performing fluid processing, and a control method thereof.
- a magnetic particle processing integrated device capable of performing a reliable process by minimizing the effect on the external environment by completing the entire process in one closed space, and The purpose is to provide a control method. Disclosure of the invention
- a first aspect of the present invention provides a suction / discharge unit for performing suction and discharge of a fluid, a plurality of nozzles through which the fluid passes by suction and discharge, and Magnetic force means capable of applying a magnetic force to each of the nozzles in a stationary state and removing the magnetic force from the nozzles.
- the “suction / discharge unit” includes, for example, a bundle of a plurality of independent cylindrical containers, a block formed with a plurality of cylindrical containers, and a suction / discharge line provided in the container.
- a cylinder-shaped container provided with a plunger
- a container provided with an elastic body, a bellows, a diaphragm, or the like to suction and discharge a fluid.
- Fluid includes liquids and gases. Also includes cases where solid matter such as magnetic particles or substances is contained or suspended o
- the “plurality of nozzles” are easier to handle, but are not limited to, if they are arranged in a planar shape, for example, a matrix shape, an annular flat shape or a two-dimensional shape.
- the “nozzle” may be provided fixed to the suction / discharge unit, or may have a pipette tip detachably provided to the suction / discharge unit.
- the pipette tip is provided directly and detachably on the sucking bow I discharging means, and it is detachably mounted on the part fixed to the bow sucking I discharging means.
- Pit tips are disposable and can be washed and reused.
- Magnetic force means is means for adsorbing magnetic substances or magnetic particles suspended or contained in a fluid on the inner wall of the nozzle. This allows for processing of magnetic particles such as transport, stirring, washing, separation or resuspension.
- the “magnetic force means” is capable of simultaneously applying and removing a magnetic force inside each nozzle while remaining stationary near the outside of each nozzle. With this configuration, no operation near the outside of the nozzle is required, so no complicated operation mechanism or space for enabling operation is required near the outside of the nozzle. Therefore, a large number of nozzles can be densely integrated. As a result, the processing of the magnetic particles can be performed in an integrated manner, thereby reducing the size of the apparatus, saving space, and improving the processing efficiency.
- the same conditions can be set temporally or spatially uniformly for a very large number of very small objects, so that each object can be processed with high accuracy.
- the processing speed and efficiency can be improved.
- the magnetic force means does not exclude the movement of the nozzle for the purpose other than applying or removing the magnetic force into each nozzle, for example, for moving the entire apparatus.
- each nozzle portion or nozzle outer member is made of a magnetic material such as a paramagnetic material or a superparamagnetic material, and an electromagnet provided with a switch on the magnetic material, or a detachable magnet.
- a magnetic field source such as a permanent magnet or electromagnet.
- magnetic particles or magnetic substances are for binding related substance groups such as a target substance.
- the magnetic particles have a size of, for example, about 0.1 to 100 m.
- the magnetic particles hold a participating substance in a porous substance having a large number of recesses, or Participants by adsorbing substances or coating or retaining substances that react specifically with them Are combined.
- it is formed using a superparamagnetic material.
- the magnetic force means may be provided fixed to the suction / discharge means, or may be provided detachably.
- the magnetic force means is configured to magnetize and demagnetize a nozzle outer member provided in contact with or close to the outer surface of each nozzle, or at least a part of each nozzle.
- magnetization and demagnetization means that a magnetic material becomes magnetized or disappears under the influence of a magnetic field.
- the structure of a magnetic force means can be simplified, Therefore, the structure of an apparatus can be simplified and the manufacturing cost of an apparatus can be reduced.
- the volume and the bottom area required for magnetization and demagnetization can be further reduced, so that more integration is possible.
- the magnetic force means has a magnetic member formed of a magnetic member provided with a plurality of communicating portions through which each nozzle communicates. This is the wall of the communication part.
- a plurality of nozzles can be densely integrated easily with a simple configuration. Therefore, the manufacturing cost can be reduced and the device can be manufactured compactly.
- the “magnetic member” is formed of, for example, a paramagnetic material or a superparamagnetic material.
- the nozzle outer member or a portion of the nozzle or a divided portion is divided, and each divided portion has a polarity opposite to each other due to magnetization. It is separated to hold.
- the interval between the divided portions is an interval for giving an appropriate magnetic force in the nozzle, and the strength of the magnetic field of the magnetic field source, the type of the magnetic material, the size of the through-hole, the position or The distance is set in consideration of the distance from the magnetic field source, the size of the magnetic force means, or the magnetic force required for processing. If the distance is the shortest distance in the magnetic means, then the maximum magnetic force is obtained as compared to the part.
- the magnetic lines of force can be leaked to a required location, and the leaked magnetic lines can efficiently and appropriately apply a suitable magnetic force to the nozzle. .
- the magnetic means comprises a magnetic field source having an electromagnet or a permanent magnet, the magnetic source being magnetically connected to the electromagnet or magnetically connectable to the permanent magnet, and Two magnetic plates made of a magnetic material capable of being magnetized and demagnetized and arranged vertically above and below each other at intervals and a plurality of magnetic plates which penetrate the two magnetic plates up and down so that the nozzle can pass therethrough. And a pair of protruding portions provided on each of the communicating portions, protruding from the opposing surfaces of the respective magnetic plates, and formed of a magnetic material. The protrusions correspond to the divided portions, and are separated so as to have opposite polarities by magnetization.
- the magnetic field is generated or extinguished by conducting and cutting off the current, and when it is a permanent magnet, the magnetic field is generated by attaching and detaching it, or by contact and non-contact. Magnetize and demagnetize the body.
- the contact and non-contact of the permanent magnet is performed, for example, by rotating the permanent magnet around a rotation axis and bringing the magnetic pole into contact with, close to, or apart from the magnetic member.
- Magneticization and demagnetization refers to the use of a permanent magnet for a magnetic plate that is magnetically connected to a wall made of a magnetic material installed near each nozzle without providing a drive mechanism or drive space for each nozzle. Since mounting and demounting, or conduction and cutting of current to and from the electromagnet can be performed at a point away from each nozzle, the nozzles can be integrated.
- the “predetermined interval” is a distance that does not cause an influence of a magnetic field unnecessary for processing depending on the interval, and is a distance that the nozzle can pass through the through portion.
- the through-hole is a through-hole through which the nozzle penetrates through the magnetic plate and the pair of protruding portions up and down, and is separated from each other.
- the walls of the through holes have opposite polarities due to magnetization.
- the magnetic force means has one or more magnetic field sources, and the magnetic field source has a coil and a magnetic element around which the coil is wound. One end of the element is connected to one of the two magnetic plates, and the other end of the magnetic element is connected to the other magnetic plate.
- each magnetic plate is coupled only to one end or the other end of the magnetic element which is a magnetic field source, the magnetic plates are not directly connected to each other, and are more connected than between the magnetic plates. Stronger magnetic fields can be generated by parts separated by a short distance.
- the magnetic element is provided outside a space interposed between the magnetic plates.
- the magnetic element is provided in a place other than the space sandwiched by the magnetic plates, the number of turns of the coil and the like are limited by the interval between the two magnetic plates. Since it is not, a strong magnetic force can be generated.
- the magnetic element has a first portion and a second portion formed separately from each other, and one end of the first portion has two magnetic plates.
- the other end of the second part is connected to the other magnetic plate, and the first part and the second part are overlapped and a coil is wound on itself.
- a third portion connected to the other end of the first portion and one end of the second portion at each end thereof, and wound with a coil and formed of a magnetic material.
- the magnetic element and the magnetic plate can be easily manufactured by dividing the magnetic element into two or three parts having simple shapes.
- each of the divided portions separated from each other is formed in a tapered shape toward the separated portion.
- the shape of the taper is, for example, a circular shape.
- the pair of protruding portions is opposite to each other along an insertion direction of the nozzle from the opening edge of the through portion of the one magnetic plate toward the other magnetic plate.
- each tip is separated from the opposing surface at a first interval, and the tips are spaced at a second interval shorter than the first interval, and have opposite polarities due to magnetization.
- the nozzles are spaced apart from each other with the nozzle interposed therebetween.
- the reason why the second interval is shorter than the first interval is to allow the magnetic field lines to pass closely between the protruding portions separated by the second interval.
- each of the through portions of the magnetic force means is provided with a separation hole that comes into contact with or comes close to the outer surface of the nozzle when the nozzle is inserted.
- An insertion / removal hole provided adjacent to the separation hole and capable of horizontally moving the nozzle between the separation hole and the insertion hole for inserting or removing the nozzle; It has.
- the present invention it is assumed that there is a moving mechanism between the nozzle and the magnetic force means for horizontally moving the nozzle between the separation hole and the insertion / extraction hole and moving the nozzle up and down in the insertion / extraction hole.
- the through hole was provided in addition to the separation hole for the following reason.
- the liquid adheres to the outer peripheral surface of the tip of the nozzle that directly contacts the liquid stored in the container.
- the nozzle outer member provided in the separation hole is close to or in contact with the nozzle, so that the nozzle is pulled out of the through-hole when the nozzle has a pit tip. This is because the liquid adhering to the outer peripheral surface of the tip may touch the nozzle outer member and contaminate the nozzle outer member.
- the opening should be larger than the separation hole, so that the nozzle passes through the insertion and removal hole so that the nozzle can be inserted and removed without contacting other members. It is to do.
- the nozzle has a small-diameter portion and a large-diameter portion, and the separation hole has a diameter such that only the small-diameter portion of each nozzle can be inserted.
- the insertion hole has an opening large enough to allow the large diameter portion of each nozzle to pass through. It has something.
- the hole when the nozzle has a small diameter portion and a large diameter portion, the hole has an opening through which the large diameter portion can be inserted. This allows the large diameter portion of the nozzle to pass through. Therefore, the hole is not contaminated by the small-diameter portion provided at the tip that comes into contact with the liquid, and cross contamination can be prevented. In addition, the nozzle can be easily inserted and removed because the large diameter portion can be inserted and removed.
- the magnetic force means comprises a coil having a conductive wire wound around each nozzle, and the magnetic force is generated in each nozzle in a static state in the vicinity of the outside of each nozzle. And can be removed. According to the present invention, a strong uniform magnetic field can be applied to each nozzle at a short distance.
- the magnetic force means may be one in which at least a plurality of coils are formed by one conductive wire. This eliminates the need to provide a terminal for each coil, thereby simplifying the circuit configuration. Moreover, since the coil is not attached to the nozzle, the nozzle can be disposable.
- the magnetic means is provided with a heat insulating means for preventing conduction to a nozzle due to heat generated by magnetization or generation of a magnetic field. .
- a heat insulating means for preventing conduction to a nozzle due to heat generated by magnetization or generation of a magnetic field. .
- heat generation can be positively used for treatment by not providing heat insulation means.
- the heat insulating means include the one according to the fifteenth aspect of the present invention, a method in which a Peltier element is provided, and a method in which a heat insulating material is provided between a magnetic field source.
- ventilation means for flowing air is provided in or around the magnetic means. This can effectively prevent the conduction of heat to the nozzle.
- the magnetic force means is capable of being divided into a plurality of magnetic force segments at a boundary determined to include a plurality of magnetic field sources and a region close to each magnetic field source. It is something that is.
- strip-shaped magnetic force segments having a through portion are arranged in parallel in the direction of the magnetic field for the number of nozzle rows.
- the magnetic means when manufacturing magnetic means capable of performing fluid treatment in a container having a large number of liquid storage sections, the magnetic means can be divided and manufactured. Manufacturing costs can be reduced. Also, the distribution of the magnetic field can be made uniform, and the magnetic field can be applied strongly.
- the magnetic force means is a magnetic field source having an electromagnet or a permanent magnet, and a magnetic material magnetically connected to the electromagnet or magnetically connectable to the permanent magnet.
- a thick plate-shaped member formed, wherein the through portion is a through hole formed in the thick plate member and through which a nozzle can be inserted.
- magnetic force means having a simple structure can be provided.
- the “thick plate-shaped member” may be formed by, for example, laminating thin plates made of a magnetic material along a magnetic field direction.
- the laminating of the thin sheets may be performed in a laminating manner with the normal direction of the thin sheets up or down, or in a laminating manner with the normal direction of the thin sheets oriented sideways.
- each of the through holes of the magnetic force means has a divided wall portion divided along the insertion direction, and the divided wall portions are mutually connected by magnetization. They are separated so that they have opposite polarities.
- the nozzle comprises a large-diameter portion and a small-diameter portion
- the thick plate-shaped member of the magnetic force means has a large-diameter portion of each of the nozzles.
- a plurality of row members divided and provided so as to be separated from each other at a possible interval, and provided between the row members, protruding from each row member so as to face each other, and having mutually opposite polarities.
- the nozzles are magnetized so as to be spaced apart from each other at intervals allowing the small diameter portions of the nozzles to pass through, and are arranged along the row-shaped members so as to be adjacent at intervals allowing the large diameter portions to be inserted therethrough.
- a plurality of projections formed of a magnetic material; and the dividing wall is a tip of each of the projections facing each other.
- the magnetic force means has a thick plate-shaped member formed of a magnetic material, and has a plurality of passage holes through which the fluid passes through the thick plate-shaped member.
- a thin tube which is communicated with the passage hole and can be inserted into the container is provided below each of the passage holes, and a nozzle is formed by the passage hole and the small tube.
- the suction / discharge means stores a suctioned fluid and a storage body provided with a storage part communicating with the nozzle; and a storage part in the storage part or the plurality of nozzles.
- a pressure increasing / decreasing means for sucking or discharging a fluid is provided in the first invention.
- the “reservoir” is capable of storing a fluid, and includes the case of storing not only liquid but also gas such as air. Accordingly, an air layer can be provided between the liquid to be sucked or discharged and the increasing / decreasing means or between the liquid and the cleaning liquid for processing.
- the shape of the storage portion may be, for example, a perforated bottomed, unbottomed, covered, uncovered hole, tubular, container-shaped, or the like. Further, it may be formed integrally with the nozzle, or may be formed separately from the nozzle. Further, the number of storage units is not necessarily limited to the case where the same number of nozzles is provided.
- a plurality of nozzles may communicate with one storage unit, or the same number of storage units as the number of nozzles may be provided, and each storage unit may communicate with each nozzle one by one. Further, some of the plurality of nozzles may share the storage portion, or the plurality of storage portions may share the nozzle.
- the storage body which is an aggregate of the storage sections is not limited to, for example, a case where a hole-shaped storage section is perforated on one thick plate, but also a plurality of tubular or container-shaped storage bodies. May be collected.
- ADVANTAGE OF THE INVENTION According to this invention, several storage parts can be easily and collectively produced, for example by making a vertical hole in a thick board.
- the pressure is increased or decreased by moving the sliding body up and down.
- a bellows extendable and retractable is formed at least partially, and has an opening communicating with the nozzle at the lower end, and the increasing / decreasing means has a pressing means for pressing the storage portion or releasing the pressing. Is also good.
- An insert that is at least partially formed of an elastic body and that covers an upper side of the storage portion that is deformable and insertable into the storage portion, and that presses the insert to compress the inside of the storage portion; It may have a pressing means for releasing the pressing.
- the storage section may have a diaphragm, an opening at the lower end communicating with the nozzle, and the increasing / decreasing means may have a pressing means for pressing or releasing the pressing of the diaphragm.
- the increasing / decreasing means is configured such that a sliding projection that slides in the storage section or the nozzle projects downward, and is capable of moving up and down with respect to the storage body. It has a sliding body provided, and moves the sliding body up and down to increase or decrease the pressure in each storage section or in the nozzle.
- the sliding member provided with the sliding protrusion is moved up and down with respect to the reservoir with a simple configuration, so that the sliding member can be easily moved under the same conditions such as the same time, the same capacity, and the same evening. Further, the fluid can be sucked or discharged with high precision to the storage portion through the nozzle all at once.
- the sliding protrusion comprises: a large-diameter portion that slides in a storage portion such as a vertical hole; and a projection direction of the large-diameter portion provided in the large-diameter portion. It is formed in a two-stage structure having a small-diameter portion that is extendable with respect to and has a small-diameter portion slidable in a nozzle communicating with the storage portion.
- suction is performed by moving the sliding projection up and down while fixing the tip of the small diameter portion to the tip of the large diameter portion of the sliding projection.
- discharge is performed.
- the sliding projection is moved up and down with the tip of the small diameter portion fixed to the tip of the large diameter portion, and then the tip of the sliding projection is When the liquid comes into close contact with the lower end of the storage part and all the liquid in the storage part is discharged, only the small diameter part is further moved up and down to slide inside the nozzle.
- Suction and discharge are performed by moving. This makes it possible to process a very small amount of fluid together with a relatively large amount of fluid with high accuracy, and to provide a diversified and highly reliable apparatus.
- the sliding protrusions are configured in two stages, but may be configured in multiple stages if necessary.
- a twenty-fifth invention is the twenty-second invention, wherein the nozzle has a tip detachably provided to the suction / discharge means.
- ADVANTAGE OF THE INVENTION According to this invention, cross-contamination can be prevented reliably without cleaning a nozzle. Therefore, the processing can be performed without washing by sucking and discharging the liquid through a certain air layer into the storage section, so that the processing efficiency can be improved.
- the nozzle is detachably fitted by being fitted into the storage portion from below the vertical hole-shaped storage portion and being attached to the storage portion.
- a push tube that is in contact with the upper end of the nozzle and that has a push tube fitted and inserted into the storage portion from above the storage portion so as to be able to push the nozzle out of the storage portion, and
- the increasing / decreasing means has a sliding body that slides in the push tube and protrudes downward, and has a sliding body provided to be vertically movable with respect to the storage body. It increases or decreases the pressure in the storage section or the nozzle.
- the processing can be performed by cutting off the space between the fluid to be sucked or discharged and the pressing body through the air layer, the cross contamination is achieved by changing only the nozzle. Can be reliably prevented. Further, the nozzle can be easily and simultaneously attached and detached by detachably attaching the nozzle to the storage body and moving the pressing body downward.
- the nozzle has a vertical hole-shaped reservoir.
- the sliding protrusion is fitted into the reservoir from the lower side and detachably attached to the reservoir to a predetermined depth, and the sliding protrusion slides through the reservoir to a depth up to the mounting depth of the nozzle, and penetrates.
- a detachable lip is protrudingly provided on the outer surface of the nozzle exposed below the magnetic means, and a hole larger than the nozzle and smaller than the detachable lip is provided between the magnetic means and the detachable lip.
- a sword board with a hole is provided in a state where a nozzle is passed through the hole, and the nozzle is removed by lowering the sword board.
- a twenty-eighth invention is the twenty-third invention according to the twenty-third invention, wherein an upper portion of the inner wall of the storage portion is formed in a columnar shape, and a lower portion thereof is formed in a funnel shape and communicates with the nozzle.
- the tip of the sliding protrusion is formed in a shape closely contacting the lower portion of the storage portion, thereby reliably preventing the liquid from remaining, thereby improving reliability. High processing can be performed.
- the magnetic force means and the suction / discharge means or the nozzle are provided so as to be mutually movable.
- the magnetic force means can reliably apply or remove the magnetic force. For example, after removing the magnetic force of the magnetic force means, the suction / discharge means is moved upward, and the influence of the residual magnetization can be reduced by performing the discharge processing or the like by moving the magnetic force means away from the nozzle.
- the nozzle When the nozzle is provided detachably with respect to the suction / discharge means, the nozzle can be detached.
- a cleaning liquid is provided so as to be capable of injecting a cleaning liquid from above or from a side of the storage body.
- a switching valve is provided in the middle of a hose connecting the reservoir and the increasing / decreasing means to connect to the container containing the cleaning liquid, or a passage communicating with the cleaning liquid to the reservoir is provided with a side wall.
- a cleaning liquid pipe is inserted instead of attaching and detaching the above-mentioned sliding projection, or a pipe for injecting the cleaning liquid is provided in the sliding projection itself. Since there is no need to move the nozzle to the cleaning liquid container or transport the cleaning liquid container, processing is efficient.
- a thirty-first invention is the invention according to the first invention, wherein the light from the whole container or the plurality of liquid containers is simultaneously or simultaneously measured in order to measure the state of light emission generated in the external container having the plurality of liquid containers. Both have light measuring means for receiving light, measuring the light intensity, or processing the image as an image.
- the light measuring means comprises: a plurality of light receiving elements having a position and a number corresponding to each liquid storage portion; A shielding fan is provided to prevent light from being input to portions other than the liquid storage section.
- a magnetic force device is a magnetic device comprising: a suction means for discharging and sucking a liquid; and a plurality of nozzles through which a fluid passes by the suction and discharge. It can be detachably attached to a pit device, a container in which a plurality of liquid storage units are arranged, or a column group in which a plurality of columns are arranged, and is attached to the pit device, the container or the column group.
- each liquid collection A magnetic device having magnetic force means capable of applying and removing a magnetic force in each nozzle, each liquid storage unit, or each column in a stationary state in the vicinity of the outside of the container or the outside of each column.
- the “column” refers to a liquid storage unit having at least a mechanism such as a valve capable of discharging the liquid to the outside and a mechanism such as a valve capable of selectively injecting the liquid into the inside.
- a mechanism such as a valve capable of discharging the liquid to the outside and a mechanism such as a valve capable of selectively injecting the liquid into the inside.
- a thirty-fourth invention is the thirty-third invention according to the thirty-third invention, wherein the magnetic means according to the third invention to the twenty-first invention is provided as the magnetic means in the nozzle, the liquid container or the force ram. Applied.
- the magnetic means is applied not only to a pipe device in which a plurality of nozzles are arranged, but also to a container in which a plurality of liquid storage units are arranged or a column group in which a plurality of columns are arranged. It was made possible.
- a liquid storage unit or a column is used instead of the nozzle, so that the diameter of the through-hole is changed according to the nozzle, the liquid storage unit, or the column. Become.
- a thirty-fifth invention is the invention according to the first to thirty-fourth inventions, wherein a plurality of the nozzles, the insertion part, the storage part, the sliding protrusion, the hole, the push tube, the liquid storage part of the container, and the column group
- the columns or light-receiving elements are arranged in a row, in a matrix, in a ring shape, in a ring shape, in a polygonal shape, in a radial shape, or in a plane with a certain periodicity or symmetry.
- matrix refers to a state in which a plurality of elements are arranged in at least two directions on a plane (row direction and column direction) or in parallel.
- An array along the row direction is called a row
- an array along the column direction is called a column.
- the row direction and the column direction do not necessarily need to intersect at 90 °, and include cases where they are arranged obliquely.
- the case where the adjacent columns are shifted one by one so that they are arranged in the closest density is included.
- the integration is facilitated and the arrangement is made so as to have a constant periodicity or symmetry. Therefore, the pipette device or the like is rotated and transposed to match the symmetry. This makes it easy to control the movement and standardize it.
- the thirty-sixth invention is directed to a storage body in which a plurality of vertical hole-shaped storage portions for storing a suctioned fluid are provided in a matrix shape, and a plurality of sliding projections sliding in each storage portion. And a plurality of nozzles projecting toward the reservoir and movably provided up and down with respect to the reservoir, a plurality of nozzles communicating with the lower ends of the reservoirs, and passing a fluid through the interior.
- Magnetizing and demagnetizing magnetic force means provided with a plurality of through-holes having walls in contact with or close to the outer surface of the nozzle, wherein the walls have opposite polarities due to magnetization. It has a dividing wall part which is separated so as to hold.
- a thirty-seventh invention is the invention according to the first to thirty-second inventions, the thirty-fifth invention or the thirty-sixth invention, wherein a driving mechanism for driving suction and discharge of the suction and discharge means is provided, A magnetic force control means for controlling the magnetic force of the magnetic force means, a movement mechanism for moving the external container and the suction / discharge means and the magnetic force means or for moving between the suction / discharge means and the nozzle and the magnetic force means; According to the instructions, at least an integrated processing control unit that controls the integrated processing of the magnetic particles by controlling the driving mechanism, the magnetic force control unit, and the moving mechanism.
- “movement” includes translation, vertical movement (vertical movement), or rotational movement.
- the rotational movement includes, for example, a transposition movement in which nozzle rows and columns arranged in a matrix are exchanged and moved.
- the drive mechanism, the magnetic force control means, and the moving mechanism can be linked and handled in a unified manner by one controller, so that efficient, versatile, and reliable control can be performed. It can be carried out.
- a thirty-eighth invention is the thirty-seventh invention, in the thirty-seventh invention, wherein the control unit is a heat insulation means such as a ventilation means, a cleaning liquid injection, a light measurement means, or data analysis, data processing or data processing of a control result.
- the output is also controlled.
- the control unit is a control step for controlling a magnetic force pattern by a magnetic force control means with respect to a magnetic force intensity, a direction, a magnetic force control time, or a magnetic pattern obtained by combining these.
- the “degree of residual magnetization” can be obtained, for example, by separately providing a magnetic force detecting means using a coil or the like near the processing integrated device or the nozzle and measuring. The measurement result can be fed back and used for controlling magnetic force means.
- high-precision, efficient and high-precision control is performed by making the magnetic force intensity, direction, magnetic force control time or a magnetic force pattern combining these variable in accordance with the contents of the process and performing fine control. Highly reliable processing can be performed.
- Forty-fourth invention is based on the thirty-ninth invention, wherein the direction of the magnetization controlled by the magnetic force control means is controlled so as to be alternately inverted at each degree of magnetization separated by demagnetization. is there.
- the magnetization directions of the walls and the like of the magnetic force means are alternately reversed, so that the residual magnetization is canceled out, and even if the walls and the like are made of a paramagnetic material such as iron, A noise magnetic field due to residual magnetization is hardly generated.
- the direction of the magnetization controlled by the magnetic force control means is changed according to the intensity or the driving time of the magnetization when shifting from the magnetized state to the demagnetized state.
- the reversal is performed by intensity or driving time.
- the residual magnetization is generated by canceling the residual magnetization generated by the magnetization according to the degree of magnetization up to that point. This is to prevent the occurrence of magnetization or reduce the effect of residual magnetization.
- the forty-second invention is directed to the suction and discharge provided in the magnetic particle processing integrated device according to the first to thirty-second inventions or the thirty-fifth invention to the forty-first invention.
- a step of simultaneously sucking or discharging a fluid in a container having a plurality of liquid storage sections by suction and discharge means, and a nozzle outer member formed in contact with or close to the outer surface of each nozzle, or at least each nozzle By magnetizing and demagnetizing a portion of the magnetic field, or by generating and extinguishing a magnetic field by a coil provided to be wound around the outer surface of each nozzle, And applying or removing a magnetic force in each of the nozzles in a stationary state.
- the suspension of the magnetic particles combined with the target substance is provided in a plurality of liquid storage sections provided in the container by using the magnetic particle processing integrated device.
- the magnetic particles bound to the target substance by applying or removing a magnetic force are separated by adsorption to the inner wall of the nozzle, removed from the inner wall of the nozzle, resuspended, stirred, dissociated, extracted, and reacted. , Clarification, concentration, dilution, recovery, isolation or washing.
- dissociation means removing magnetic particles from the target substance
- extraction means taking out only magnetic particles or the target substance bound to the target substance.
- the measurement of the luminescence of the liquid stored in each of the liquid storage units processed by the magnetic particle processing and integrating device is performed by each liquid storage. This includes steps performed all at once.
- the magnetic particle processing and integration device in which a plurality of nozzles are arranged in a matrix is used, and the transferring step is performed by the magnetic particle processing and integration device. It is carried out by transposition movement in which the apparatus or the container is moved by exchanging rows and columns, or by translation movement in which the equipment or containers are moved without exchanging the rows and columns.
- transposition movement in which the apparatus or the container is moved by exchanging rows and columns, or by translation movement in which the equipment or containers are moved without exchanging the rows and columns.
- a forty-sixth invention is directed to a method for producing a binding substance in which a plurality of substance elements are arbitrarily combined and bound on a carrier, wherein a liquid containing each of the substance elements is used for the structure or use of a designated binding substance.
- one or more storage units in which the storage units are arranged in a matrix including at least the storage unit group in which the carriers are arranged in a row or a row with a predetermined number width.
- the “substance element” includes, for example, genetic materials such as DNA and RNA, amino acids, and the like, and the “binding substance” includes, for example, various types of compounds such as DNA, RNA, and peptides.
- the present invention is applicable not only to the treatment using magnetic particles as a carrier, but also to the case where a carrier of non-magnetic particles such as a polymer carrier is used.
- a container having a liquid storage portion arranged in a matrix and having a capture function such as a filter or a column having a capture function arranged in a matrix may be used.
- the carrier may be a solid phase carrier solid-phased on the surface of a liquid storage section arranged in a matrix.
- a capturing device such as a magnetic force means in a pipe device for sucking and discharging a liquid without having a capturing function in the container.
- the binding substance which has various structures can be produced
- the present invention can be used for combinatorial synthesis.
- the magnetic force device according to the thirty-third invention or the thirty-fourth invention can be used.
- the container when the container is a liquid container provided in a container and arranged in a matrix, one or more of the containers
- the carrier is placed in each of the liquid storage sections of one of the containers, and the liquid containing each of the above-mentioned substance elements is arranged in a row or a row in a predetermined number width according to the structure of the designated binding substance.
- a liquid containing the substance elements arranged in rows or columns in a predetermined number width in one or more separate containers in one or two or more containers is displaced or parallel to the arrangement of the elements. Mixing in the arrangement state.
- the present invention relates to a case where a magnetic particle is used as a carrier (the carrier is provided with a carrier capturing function) Case and the case where the pipetting device is provided with a capturing function), the carrier is a solid phase carrier solid-phased in the liquid storage section, or the case where non-magnetic particles are used as the carrier,
- the carrier capturing material corresponds to this.
- the magnetic device according to the thirty-third invention or the thirty-fourth invention can be used for capturing magnetic particles.
- each capture function A step of disposing the carrier in the attached column and dispensing the liquid containing each of the substance elements into the column group in a row and a row in a predetermined number width according to the structure of the designated binding substance.
- a column group in which a liquid containing each of the above-described substance elements is dispensed on the carrier, and the substance elements are arranged in columns or rows in a predetermined number width. And dispensing and mixing the liquid to be transferred in a state of being displaced or parallel to the arrangement of the elements.
- the carrier when the carrier is a magnetic particle or a non-magnetic particle, a case where a solid phase carrier is used may be used.
- the carrier capturing function is, for example, a magnetic field.
- the carrier when the carrier is non-magnetic particles, for example, a filter is used.
- the carrier is a solid carrier, the solid phase itself has a capturing function. Having.
- the magnetic device according to the thirty-third invention or the thirty-fourth invention can be used for the function of capturing magnetic particles.
- FIG. 1 is an exploded perspective view of an integrated device according to the first embodiment of the present invention.
- FIG. 2 is a diagram showing magnetic force means of the integrated device according to the first embodiment of the present invention.
- FIG. 3 is a cross-sectional view of the integrated device according to the first embodiment of the present invention, taken along line AA of FIG.
- FIG. 4 is a cross-sectional view when the integrated device according to the first embodiment of the present invention is assembled.
- FIG. 5 is an exploded perspective view of the integrated device according to the second embodiment of the present invention.
- FIG. 6 is an assembly of FIG. 5 of the integrated device according to the second embodiment of the present invention.
- FIG. 4 is a sectional view taken along line BB.
- FIG. 7 is a sectional view of an integrated device according to the third embodiment of the present invention.
- FIG. 8 is a cross-sectional view of an integrated device according to the fourth embodiment of the present invention.
- FIG. 9 is a cross-sectional view of an integrated device according to the fifth embodiment of the present invention.
- FIG. 10 is a sectional view of an integrated device according to the sixth embodiment of the present invention.
- FIG. 11 is a perspective view showing a nozzle according to a sixth embodiment of the present invention.
- FIG. 12 is a conceptual diagram showing a process according to the seventh embodiment of the present invention.
- FIG. 13 is a diagram showing magnetic means according to the eighth to twelfth embodiments of the present invention.
- FIG. 14 is a diagram showing magnetic means and the like according to a thirteenth embodiment of the present invention.
- FIG. 15 is a diagram showing magnetic force means according to a fourteenth embodiment of the present invention.
- FIG. 16 is a diagram showing another magnetic means according to the fourteenth embodiment of the present invention.
- FIG. 17 is a diagram showing another magnetic means according to the fifteenth embodiment of the present invention.
- FIG. 18 is a diagram showing magnetic means and the like according to a sixteenth embodiment of the present invention.
- FIG. 19 is a view showing a magnetic means according to a seventeenth embodiment of the present invention.
- FIG. 20 is a diagram showing an integrated device according to an eighteenth embodiment of the present invention.
- FIG. 21 is a front view showing a device according to a first conventional example.
- FIG. 22 is a perspective view showing an apparatus according to a second conventional example.
- a magnetic particle processing and integration apparatus according to the first embodiment of the present invention (hereinafter referred to as “integration Will be described with reference to FIGS. 1 to 4.
- the integrated device 1 0 includes a plurality cylinders 1 1 as the longitudinal hole-shaped reservoir of cylinder (9 six in this example) (1 tooth., To 1 1 1 2. 8) Have a thick plate-shaped storage body 12 which is perforated and arranged in a plane (in this example, a matrix of 12 rows ⁇ 8 columns).
- a plurality of nozzles 13 communicating with each of the cylinders 11 are provided integrally with the reservoir 12 below the reservoir 12 so as to protrude downward.
- the length and thickness of the nozzle 13 are determined by a plurality of hole-shaped liquid storage portions (holes) 15 (15) provided in a container 14 placed below the outside of the integrated device 10. L, ⁇ 15 12 , 8 ), and is set to have a capacity to secure the capacity of each liquid storage section 15.
- Either one or both of the storage body 12 and the stage on which the container 14 is mounted is provided with a moving mechanism (not shown) that enables vertical movement, horizontal movement, and rotational movement.
- a moving mechanism for example, a link mechanism, a cam mechanism, a ball screw mechanism, a stepping motor, a DC motor, or the like is used.
- magnetic force means 16 capable of applying a magnetic force to each of the nozzles 13 and removing them in a stationary state near the outside of each of the nozzles 13 Is provided.
- the magnetic force means 16 has an upper plate 18a and a lower plate 18b formed of a magnetizable and demagnetizable magnetic material provided vertically facing each other at a predetermined interval, and the two plates
- the plates 18a and 18b are supported and fixed by a support column 18c formed of a magnetic material and sandwiched between both edges 18d of the plates 18a and 18b.
- a coil 19 having a conductive wire wound around the outer surface of the support column 18c is formed.
- the coil 19 is connected to an unillustrated disk, switch, and power supply, and is an electromagnet capable of generating and extinguishing a magnetic field. Is composed. It is preferable that a step is formed between the upper plate 18a and both edges 18d to increase the number of windings of the coil 19.
- the upper plate 18a and the lower plate 18b there are a plurality of tapered, generally circular-protrusion-shaped protrusions 17a and 17 each formed of a magnetic material integrally or separately.
- the projections are provided in a matrix at positions corresponding to the positions of the nozzles 13.
- the tips of the projections 17a and 17b are provided so as to face each other without contacting each other without contacting each other.
- Each wall of the insertion portion 17 is magnetizable and demagnetizable, and is in contact with or close to the outer surface of the nozzle at an upper portion or an intermediate portion of the outer surface of each of the inserted nozzles 13. Therefore, with the configuration of the magnetic force means 16, by conducting or blocking the coil 19, which is a magnetic field source, the magnetic force flows into each nozzle 13 in a stationary state near the outside of each nozzle 13. And can be eliminated.
- the movement of the magnetic force means 16 is controlled together with the storage body 12 by the moving mechanism of the storage body 12.
- the magnetic force means 16 may be provided detachably with respect to the storage body 12.
- the total length of the plunger 23 is formed at least as long as or longer than the depth of the cylinder 11.
- the sliding body 20 is provided with a mechanism (not shown) for vertically moving the storage body 12.
- a mechanism for example, a link mechanism, a cam mechanism, a ball screw mechanism, a stepping motor, a DC motor, or the like is used.
- the container 14 is moved and driven by a moving mechanism (not shown) relating to the stage on which the storage body 12 or the container 14 is mounted.
- the integrated device 10 including such a mechanism may be provided in a frame (not shown) or a closed box.
- the frame or box may be provided with a container transport mechanism.
- the nozzle 13 may not be provided integrally with the storage body 12, but may be formed separately and attached to the lower side of the storage body 12.
- the storage body 12, the nozzle 13 and the container 14 are preferably formed of a transparent body or a translucent body, and are provided so that the inside can be seen through or semi-transparent. Cylinder 11 should be located along the inner periphery of the upper part to prevent liquid leakage. A ring may be provided.
- FIG. 2A is a schematic view of the entire integrated device according to the present embodiment as viewed from the side.
- the magnetic material used for the upper plate 18a, the lower plate 18b, etc. of the magnetic force means 16 is formed of, for example, a paramagnetic material such as iron (or a ferromagnetic material having a Curie temperature or higher). Or, if formed by the ferromagnetic or antiferromagnetic material of the aggregate of the fine particles (NiO, Fe 3 0 4, Cr 2 0 3 , etc.) is a superparamagnetic material, to obtain an ideal magnetic means without remanence be able to.
- a material having a high saturation magnetic flux density and a high magnetic permeability such as an iron-cobalt alloy (49Co-2V-Fe) is suitable.
- the upper plate 18 & is magnetized to 1 [pole (or S-pole) and the lower plate 18 b magnetizes the S pole (or N pole). Therefore, each of the walls of the separated through portion can also have the opposite polarity. Also, the upper plate 18a and the lower plate 18b are closest to each other in the entire magnetic force means 16 only through the gap 17c between the tips of the protrusions 17a, 17b. I have. Therefore, the lines of magnetic force concentrate most and leak between the tips of the projections 17a and 17b, and a strong magnetic field is applied to the nozzle 13 as shown in FIG. 2 (b).
- one or more (four in this example) struts are provided between the upper plate and the lower plate.
- One or more (in this example, four) electromagnets may be configured by forming coils 191-194 that are wound around and connecting them to a switch and power supply (not shown). .
- the magnetic force means is divided into four segments 16 1, 16 2, 16 3, 16 4 so that each coil 19 1 to 19 4 includes one coil. It may be possible. Thus, a uniform magnetic field can be applied to a wide range, so that a container having a larger number of liquid processing units can be processed.
- FIG. 3 is a sectional view taken along the line AA of FIG.
- the lower end of the plunger 23 provided to protrude from the slider 20 is formed in a downwardly conical shape.
- Lower end of cylinder 1 1 on which plunger 2 3 slides The part is provided with a funnel part 27 formed in a funnel shape so as to contact the plunger 23 without any gap.
- the light receiving elements are arranged in a plane so as to correspond to the position of each liquid storage section of the container, and the CCD is used.
- Use light measuring means (not shown) in which light-receiving elements such as elements are separated by a grid.
- the light measurement means captures and analyzes the luminescence of each liquid storage unit as a whole, as a plane image, as a whole, and collectively, the luminescence can be analyzed without a time lag. Highly accurate results can be obtained under the same conditions, and processing can be performed quickly and efficiently.
- FIG. 4 shows a state where the integrated device 10 according to the present embodiment is assembled and actually used.
- the operator issues an instruction to a control unit (not shown) so that the integrated device 10 or the stage is moved horizontally and vertically.
- a control unit not shown
- the nozzles 13 are positioned on the respective liquid storage sections 15 of the container 14 so as to face each other.
- the suspension is discharged to the specimens stored in the respective liquid storage units 15 and mixed simultaneously.
- the target substance contained in the sample is bound to each magnetic particle, and when aspirating again, a current is conducted to the coil 19 to drive the electromagnet to drive the upper plate 18a.
- a current is conducted to the coil 19 to drive the electromagnet to drive the upper plate 18a.
- N pole or S pole
- the lower plate 18b to the S pole (or N pole).
- lines of magnetic force are generated along the upper plate 18a, the lower plate 18b, and the pair of projections 17a and 17b, and leak out from the gap 17c.
- a magnetic field is applied to the nozzle 13 located in the vicinity of the gap 17c, and the magnetic field causes magnetic particles bound to the target substance by adsorption or reaction with the coated substance or by direct adsorption to the surface. Adsorbed or held on the inner wall of the nozzle 13. With the magnetic field applied, the remaining liquid is discharged by lowering the moving body 20. Only the magnetic particles bound to the target substance are 3 and move the integrated device 10 itself or the container on the stage, position each nozzle 13 in the liquid container group containing the necessary reagents, etc., and release the magnetic field. By repeating suction and discharge, the mixture is stirred and mixed with the reagent to perform another process.
- the target substance is processed, and if necessary, the light emission is observed with an optical measurement system (not shown) or the like, and the intensity of the light is reduced.
- the measurement or processing is performed as an image, and the result is processed by the control unit overnight, and the measurement result is displayed on a display unit or the like or recorded in a storage unit.
- FIG. 5 shows an integrated device according to a second embodiment.
- the sliding body 200 is composed of a substrate 210 and a plunger as a large-diameter portion of a plurality of sliding protrusions protruding below the substrate 210 and arranged in a matrix and sliding within the cylinder 11. 230, and can move up and down with respect to the storage body 12.
- pores 22 penetrate vertically.
- a plurality of fine rods 25 as details sliding in the pores 22 and the nozzles 13 project downward and move up and down with respect to the sliding body 200.
- a movably provided fine action moving body 24 is provided.
- the entire length of the thin rod 25 is formed so as to have at least the total length of the pore 22 and the total length of the nozzle 13.
- the sliding body 200 and the fine sliding body 24 are each provided with a mechanism (not shown) for vertically or horizontally moving.
- a mechanism for example, a link mechanism, a power mechanism, a ball screw mechanism, a stepping motor, a DC motor, or the like is used.
- the mechanism and the integration device are provided in a frame (not shown) or a closed box. You may.
- the frame or box may be provided with a container transport mechanism.
- the nozzle 13 may not be provided integrally with the storage body 12, but may be formed separately and attached to the lower side of the storage body 12.
- the cylinder 11 may be provided with an O-ring along the inner periphery of the upper part thereof to prevent liquid leakage.
- FIG. 6 is a sectional view taken along the line BB when the integrated device 110 according to the embodiment shown in FIG. 5 is assembled.
- the tip of the plunger 230 of the sliding body 200 and the tip of the thin rod 25 of the fine sliding body 24 are aligned. To perform suction and discharge by sliding up and down.
- the plunger 230 is operated with the plunger 230 when the plunger 230 is lowered to the lowermost end of the cylinder 11.
- the fine rod 25 of the fine sliding body 24 that is being held together is further slid in the nozzle 13 to perform suction or discharge.
- the tip of the fine rod 25 is operated so as to reach the tip of the nozzle 13 or reach the outside through the nozzle 13.
- the integrated device 30 according to the present embodiment is used when processing a very small amount of fluid, and as shown in FIG.
- the cylinder 31 has a thick plate-shaped storage body 32 arranged in a matrix.
- a plurality of nozzles 33 communicating with the respective cylinders 31 are formed integrally with the storage body 32 so as to protrude downward below the storage body 32.
- the length and thickness of the nozzle 33 can be inserted into a plurality of liquid storage portions 35 provided in a container 34 placed below the integration device 30 so that each of the liquid storage portions 35 It is set to have a capacity that can secure the capacity of
- the cylinder 31 and the nozzle 33 have the same inner diameter, and the cylinder 31 and the nozzle 33 are in communication.
- the diameters of the cylinder 31 and the nozzle 33 are, for example, about several mm (about 6 mm in this example).
- the storage body 32 is provided with a moving mechanism (not shown) so as to be able to move vertically and horizontally with respect to the container 34.
- the magnet 3 has a magnetizable and demagnetizable wall that comes into contact with or approaches the outer surface of the nozzle 33, and the nozzle 3 of the reservoir 32.
- Magnetic force means 36 provided with through portions 37 arranged in a matrix corresponding to the position 3 is provided.
- the structure of the magnetic force means 36 is the same as that described in the first embodiment, except for the diameter of the insertion portion and the like.
- a plunger 43 as a sliding projection that slides inside the cylinder 31 projects downward and a sliding member 40 that can move up and down with respect to the reservoir 32.
- the total length of the plunger 43 is set to be equal to or longer than at least the sum of the depth of the cylinder 31 and the length of the nozzle 33.
- the sliding body 40 is provided with a mechanism (not shown) for vertically moving the storage body 32.
- reference numeral 38 denotes magnetic particles
- reference numeral 39 denotes a liquid to be processed.
- Reference numeral 41 denotes an annular groove engraved along the inner peripheral surface of the cylinder 31, and reference numeral 42 denotes an O-ring provided to fit in the groove.
- a nozzle in the form of a capillaries in which the volume of the liquid to be handled is relatively small and the capacity of the cylinder, which is the reservoir, is small.
- the cylinder 32, the nozzle 33, and the container 34 are preferably formed of a transparent body so that the inside can be seen through.
- the integrated device 50 has a thick plate-shaped storage body 52 in which a plurality of cylinders 51 each having a vertical hole shape of a circular pipe as a storage part are arranged in a matrix. Below the reservoir 52, a plurality of nozzles 53 communicating with the cylinders 51 are hermetically sealed by welding or the like so as to protrude downward. The length and thickness of the nozzle 53 can be inserted into a plurality of liquid storage portions 55 provided in a container 54 placed below the integration device 50 so that each of the liquid storage portions 55 can be inserted.
- the inner diameters of the cylinder 51 and the nozzle 53 are set to be different, and the capacity is larger than that of the integrated device 30 according to the third embodiment. Corresponding.
- the storage mechanism 52 and the container 54 are provided with a moving mechanism (not shown) so as to be vertically movable or horizontally movable with respect to each other.
- Magnetic means 56 provided with through portions 57 arranged in a matrix corresponding to the positions of.
- the magnetic force means 56 is the same as that described in the first embodiment except for the diameter of the insertion portion.
- a plunger 63 as a sliding projection that slides in the cylinder 51 projects downward and a sliding member 60 that can move up and down with respect to the reservoir 52.
- the total length of the plunger 63 is set so as to reach at least halfway through the entire length of the cylinder 51, and an air layer is set between the plunger 63 and the liquid to be sucked and discharged.
- the sliding body 50 is provided with a mechanism (not shown) for vertically moving.
- Reference numeral 61 denotes an annular groove engraved along the inner peripheral surface of the cylinder 51, and reference numeral 62 denotes an O-ring provided by fitting into the groove 61. This is to prevent Fifth embodiment
- the integrated device 70 according to the present embodiment has a thick plate-like storage body 72 in which a plurality of cylindrical vertical hole-shaped cylinders 71 as storage units are arranged in a matrix. Having.
- a plurality of nozzles 73 communicating with the cylinder 71 are provided in the reservoir 72 so as to protrude downward.
- Each of the nozzles 73 is detachably mounted by being inserted from below the respective cylinder 71.
- a plurality of push tubes 79 fitted and fitted from above the cylinder 71 so as to be in contact with the upper end of the nozzle 73 inside the cylinder 71 so that the nozzle 73 can be pushed out of the cylinder 71 are protruded.
- a pressing body 78 is provided above the storage body 72.
- the substrate 81 and the pushing tube 79 of the pushing body 78 are provided with pores 82 penetrating in the vertical direction.
- An annular groove 87 is engraved in the pore 82 along the inner peripheral surface thereof, and an o-ring 88 is fitted in the annular groove 87 to be provided. To prevent liquid leakage.
- annular grooves 85a, 85b are engraved along the peripheral surface of each cylinder 71 of the storage body 72, and 0 rings are provided in the annular grooves 85a, 85b.
- 8 4 a and 8 4 b are fitted to each other to securely hold the nozzle 73, and the 0-ring 84 a is connected between the nozzle 73 and the cylinder 71 by the ⁇ ring 84 b Is for preventing liquid leakage between the push tube 79 and the cylinder 71.
- the reservoir 72 is provided with a moving mechanism (not shown) so as to be able to move up and down and horizontally with respect to the container 74 having the respective liquid storage portions 75.
- Magnetic force means 76 provided with through portions 77 arranged in a matrix corresponding to the position 3 is provided.
- a plurality of plungers 83 as sliding projections sliding in the pores 82 and the nozzle 73 project downward and move up and down with respect to the reservoir 72.
- a possible slide 80 is provided.
- the total length of plunger 83 is It is formed to have the same or longer length as the sum of at least the depth of the pores 82 and the total length of the nozzles 73.
- the liquid can be sucked or discharged into each of the storage portions 75 of the container 74 by moving the sliding body 80 up and down.
- a pusher 78 is provided in the accumulating device 70, and when the pusher 78 is moved downward, a push tube 79 is provided in contact with the nozzle 73 in the cylinder 71. Therefore, the nozzle 73 can be detached.
- the sliding body 80 and the pressing body 78 are provided with respective mechanisms (not shown) for performing up and down movements. Further, the pressing body 78 may be moved down only manually.
- an integrated device 90 according to a sixth embodiment has a thick plate-shaped storage body 92 in which a plurality of cylindrical cylinders 91 are arranged in a matrix.
- a nozzle 93 is fitted and attached to each cylinder 91 of the storage body 92 so as to protrude downward.
- the length and thickness of the nozzle 93 are such that the tip 109 can be inserted into a plurality of liquid storage portions 95 provided in a container 94 placed below the integrated device 90, and
- the capacity is set so as to secure the capacity of the liquid storage section 95.
- the storage body 92 is provided with a moving mechanism (not shown) so as to be able to move up and down and horizontally with respect to the container 94.
- a moving mechanism (not shown) so as to be able to move up and down and horizontally with respect to the container 94.
- Magnetic force means 96 provided with through-holes 97 arranged in a matrix corresponding to the position 3 is provided.
- the magnetic force means 96 is the same as that described in the first embodiment, except for the diameter of the through portion and the like.
- annular detaching lip as shown in FIG. 11 is provided on the outer surface of the nozzle 93 exposed below the magnetic means 96 through the communicating portion 97 of the magnetic means 96.
- a part 98 is provided to protrude.
- the outer diameter of the nozzle 93 is larger than the outer diameter of the detachable lip portion 98.
- a stiffener plate 99 having a hole 101 having a small diameter is provided in a state where the nozzle 93 is inserted through the hole 101.
- a plunger 103 as a sliding projection that slides in a nozzle 93 mounted in the cylinder 91 protrudes as much as possible. And a sliding member 100 that can move up and down.
- the total length of the plunger 103 is set to be at least the same as or longer than the total length of the nozzle 93.
- an annular groove 105 is engraved on the inner peripheral surface of each cylinder 91 of the storage body 92, and a ring 104 is fitted into the groove 105.
- a groove 115 is engraved, and an O-ring 114 is fitted in the groove 115 to prevent liquid leakage from the plunger 103.
- the vicinity of the opening 106 at the upper end of the nozzle 93 be chamfered so that it can be easily inserted into the cylinder 91.
- the sliding body 100 is provided with a mechanism (not shown) for vertically moving.
- a mechanism (not shown) for vertically moving.
- the lip plate 98 is moved downward, so that the detachable lip 98 is hooked on the hole 101 to be detached downward.
- a (adenine), G (guanine), T (thymine), C (cytosine), or bases constituting RNA, which are bases constituting DNA, are used as substance elements.
- a (adenine), G (guanine), R (peracil ), C (cytosine) will be described with reference to Fig. 12 in terms of the process of integrating the generation of a binding substance having a structure of 7 bases by arbitrarily combining 7 bases.
- the device used is, for example, the integrated device in which the nozzles are arranged in 64 rows ⁇ 64 columns, and, for example, the multi-nozzles 13 1, 13 2, 13 3, and 13 4 having 64 nozzles.
- step S 1 using the multi-nozzles 13 1, 13 2, 13 3, and 13 4, the respective liquids in the vessels (reaction plates) 14 1 to 14 7 Dispense the liquid containing each base in columns and rows in a predetermined number width (1, 4, 16) as shown in the storage section.
- magnetic particles as a carrier may be dispensed and arranged in the container 1441 in advance.
- step S2 the stage on which the integration device or the container is mounted is moved so that each nozzle of the integration device faces a container (not shown) containing a suspension of magnetic particles. Position.
- the magnetic force means is simultaneously driven to apply a magnetic field to each nozzle, suck the suspension, adsorb and hold the magnetic particles on the inner wall of the nozzle, and capture and separate the magnetic particles.
- the remaining liquid after the discharge is simultaneously discharged and discharged into a container.
- the integrated device moves the integrated device or the stage while holding the magnetic particles, and places each liquid on a container 141 in which a liquid containing A base is stored in each liquid storage unit.
- the integrated device is positioned so that each nozzle faces each storage unit. After inserting the nozzle of the integrated device into each liquid storage section, the magnetic force means is simultaneously demagnetized.
- the remanent magnetization may be prevented by reversing the direction of the magnetization with the intensity or the driving time according to the intensity of the magnetization, the driving time, or the like, and then demagnetizing the magnetization.
- the magnetic particles are resuspended in the liquid by simultaneously sucking and discharging the suspension of the base A contained in the container 141 by the suction and discharge means of the integrated device.
- the integrating device stirs and mixes the suspension by repeating suction and discharge.
- the surface of the magnetic particles 38 is previously coated with a substance that binds the base A to the magnetic particles.
- the base A is bonded to the surface of the magnetic particles 38 by stirring and mixing. In order to allow only one base A to bind to the surface of the magnetic particles 38 as much as possible, for example, the speed, time, and number of suction and discharge, or a predetermined chemical may be used.
- the integrated device moves the magnetic force means all at once to apply a magnetic field again to each nozzle, and the A base is removed.
- the bound magnetic particles are adsorbed on the inner wall of each nozzle to be captured and separated.
- the accumulation of the residual magnetization may be prevented by inverting the direction of the magnetization to the direction of the immediately preceding magnetization to cancel the residual magnetization.
- the residual liquid from which the magnetic particles have been separated is discharged from the nozzle of the integrated device while applying a magnetic field to the nozzle.
- step S3 while the magnetic particles are adsorbed on the inner wall of the nozzle, the stage on which the integrated device or the container is mounted is translated to move each nozzle of the integrated device to each of the containers 142. It is positioned so as to face the liquid container. As shown in the figure, each of the bases A, G, T, and C is dispensed in advance into the container 142 in each of the 16 liquid storage unit groups. By simultaneously lowering the nozzles of the integrated device, the magnetic force means is simultaneously demagnetized after being inserted into each liquid storage unit.
- the direction of magnetization may be reversed before demagnetization.
- the suspension of the bases of A, G, T, and C contained in the container 142 is simultaneously sucked and discharged by the suction and discharge means of the integrated device, whereby the magnetic particles are discharged. Resuspend in liquid.
- each base further binds to the base ⁇ bonded to the surface of the magnetic particles 38, and as shown in step S 3 in FIG.
- the base sequences to be written are: A-A, ⁇ - ⁇ -G, ⁇ - ⁇ - ⁇ , and Hata- ⁇ -C.
- the integrated device drives the magnetic force means to apply a magnetic field to each nozzle, and causes the magnetic particles to be applied to the inner wall of each nozzle. Adsorb and capture and separate. At this time, the direction of the magnetization is reversed from the direction of the magnetization in the immediately preceding step S2 to prevent the remanent magnetization. You may do it.
- the residual liquid from which the magnetic particles have been separated is discharged from the nozzle of the integrated device while applying a magnetic field to the nozzle.
- steps S4 and S5 are the same as the processing of step S3 except that the arrangement of bases previously dispensed is different as shown in containers 144 and 144.
- the direction of the magnetization may be reversed from the direction of the immediately preceding magnetization to prevent residual magnetization.
- step S4 the nucleotide sequence ⁇ -A-A, ⁇ - ⁇ - ⁇ -G, etc. as shown in S4 in FIG. 12 are obtained, and in step S5, A-A-A-A, Hata-A-A-A-G, etc. are obtained.
- step S6 the stage on which the integrated device or the container is mounted is translated and 90 while the magnetic particles are adsorbed on the inner wall of the nozzle.
- the nozzle of the integrated device is placed on the container 144. Therefore, as shown in S6 of FIG. 12, dispensing and mixing are performed in a transposed arrangement with respect to the arrangement of the material elements S3 to S5.
- step S3 a base sequence such as... A—A—A—A—A is obtained on the magnetic particles as shown in S6 in FIG. .
- steps S7 and S8 a base sequence, such as S8-8-8-8-8-8-8-8, etc., as shown in S8 in FIG. 12 can be obtained.
- the DNA is shown, but it is possible to produce various combinations of binding substances such as RNA, amino acid 3, 5, 10, etc. . Further, a washing operation or a reaction activation treatment can be freely combined in the middle of each reaction plate.
- the above-mentioned generation of the binding substance was performed using magnetic particles as a carrier and using an integrated device.
- the present invention is not limited to this case, and instead of the integrated device, the magnetic particles are added to the container or the column group itself. Generation may be performed with a capture function. In this case, close the outside of the nozzle. Instead, it is possible to provide a magnetic force means capable of applying and removing a magnetic force while the liquid storage portion of the container or the external vicinity of the force ram remains stationary. Further, it may be performed by using non-magnetic particles such as polymer particles instead of magnetic particles, and by providing a container or a force ram group with a function of capturing the non-magnetic particles.
- the present invention is not limited to these cases. (16 rows x 24 columns) are arranged on a matrix, or they are arranged one by one in a close-packed state, or one row or one row of force-trigger containers, or They may be arranged in a ring shape, ring shape, annual ring shape, radial shape, polygonal shape or the like.
- the shape of the storage body and the container is not limited to a square shape, but may be a square shape or a circular shape. If the storage body and nozzle are made of a transparent or translucent body, the inside can be seen through and it is convenient.
- the shape of each nozzle or cylinder is not limited to a cylinder, but may be a prism or a cone.
- the integrated device has a control unit (not shown).
- the control unit includes a keyboard, a mouse, a CD drive, a floppy disk drive, and a protocol control by an IC card for inputting an instruction.
- System, evening touch panel or communication device, and memory, CD, floppy disk, etc. which stores programs and data for performing operations in accordance with the instructions, and various instructions based on the instructions, programs, and data CPU, a display device for displaying various contents, a printer, an image device, a communication device, an output device such as a CD or a floppy disk for outputting a processing result, a measurement result, an experiment result, and the like, and a measure for the CPU.
- a drive control unit for controlling the drive of various mechanisms as shown.
- the integrated device according to the present invention includes various devices necessary for control.
- FIG. 13 shows another configuration example of the magnetic force means. Eighth embodiment
- the magnetic means 1 65 according to the eighth embodiment shown in FIG.
- a through portion 1 75 At the position of each of the pillars 1 75a, there is provided a through portion 1 75 that penetrates the plates 1 85a and 1 85b up and down and through which the nozzles 13 pass.
- a coil is formed by winding a conducting wire 195 so as to surround the outer insertion portion 175.
- the conducting wire 195 is connected to a switch and a power supply (not shown) to form an electromagnet capable of generating and extinguishing a magnetic field.
- a magnetic field can be generated at a short distance for each of the nozzles 13, so that a strong magnetic field can be formed.
- the coil is not mounted on the nozzle, the nozzle itself can be disposable.
- an independent conducting wire may be used for each insertion portion 175, or a plurality of or all of the conducting portions 175 may be formed by a single conducting wire to form a coil. You may do it.
- each of the pillars 1 75 a may be provided separately from the upper plate 18 a and the lower plate 18 b, or only the upper plate 18 a or the lower plate 18 5 a. It may be provided only with b. In these cases, after mounting the coil, fix it with the lower plate 185b or the upper plate 185a.
- the magnetic force means 166 according to the ninth embodiment shown in FIG. 13 (b) is a thick plate formed of a magnetic material, and the through-hole is formed by drilling a nozzle in the thick plate. Is a through hole 176 that can be passed through. In this case, the magnetic field is exerted by the magnetic field source 196 horizontally, not vertically.
- FIG. 13C is a sectional view of the magnetic force means.
- the magnetic force means is a stack of thin magnetic plates (the normal direction of the surface may be vertical or horizontal), no magnetic field is required. And a uniform magnetic field can be applied.
- the magnetic means 167 according to the tenth embodiment shown in FIG. 13 (e) applies a magnetic field in the left-right direction and
- the wall of the through hole 177 is divided into right and left by forming a gap 1 ⁇ 7a along the vertical direction so as to connect the gap, and the gap 177 a is the shortest of the magnetic force means. It has a distance and has opposite polarities.
- the magnetic force means 168 applies a magnetic field in the left and right directions, and for each of the through holes 178, the By forming a gap 178 a along the wall in the upward and downward direction, the wall of the communication part 178 is divided into right and left, and the gap 178 a is the shortest distance in the magnetic force means. And have opposite polarities. Magnetic field sources 198 are provided on both sides.
- a strong magnetic field can be applied to the nozzle in each of the communicating portions with a simple structure.
- a magnetic field may be exerted in the vertical direction along with the left and right divisions, and the upper and lower divisions may be combined.
- the magnetic means 169 has a size (for example, a plurality of nozzles arranged in a planar shape) capable of maintaining the strength of each electromagnet.
- each nozzle row may be divided into magnetic force segments.
- FIG. 14 (a) shows a magnetic means 306 and the like according to the thirteenth embodiment.
- the magnetic force means 303 includes an electromagnet (or permanent magnet) 310 serving as a magnetic field source, Two magnetic plates 308 a, 308 b formed of magnetic material capable of being magnetized and demagnetized, which are connected to an electromagnet and provided at predetermined intervals to face each other, and two magnetic plates 308 a, 30 b A plurality of through-holes 307 are provided so as to penetrate the nozzle 8b up and down and allow the nozzle 303 to pass through. Further, each of the communication portions 307 protrudes from the magnetic plates 308 a and 308 b near the opening edge of the communication portion 307 in the opposite direction to the opposing surface side, and each end thereof is opposite to the opposing surface.
- the second nozzle B At the first interval A, they are separated from each other, and their respective tips are separated from each other by the second nozzle B at a second interval B, which is shorter than the first interval A.
- a pair of protrusions 304 and 305 formed of a magnetic material and spaced apart so as to have the following polarities.
- reference numeral 302 denotes a storage body
- 301 denotes a storage unit.
- the pair of protruding portions 304, 305 corresponds to a divided portion of the nozzle outer member.
- the second interval B is formed shorter than the first interval A.
- the lines of magnetic force or the magnetic flux are formed more densely between the protrusions 304 and 305 than between the tips of the protrusions 304 and 305 and the magnetic plates 308 a and 308 b. . Therefore, a strong magnetic field can be applied in the nozzle 303 in the horizontal direction.
- FIGS. 14 (b) and (c) show the through holes in each of the magnetic plates 308a and 308b in order to remove an opposing surface portion near the tip of the projecting portion 304.305.
- the through holes 310a and 31Ob with the opening of the portion widened were provided.
- the first distance A between each protrusion 304.305 and the opposing surface is made longer than the second distance B, so that more lines of magnetic force or higher density magnetic flux are generated by the second distance B. It passes through the interval B.
- the openings of the through holes 310a and 31Ob are formed so as to have the same size, but the positions of the center points are shifted from each other by a distance that allows the tip of the nozzle to pass through. .
- magnetic means 316 according to a fourteenth embodiment will be described with reference to FIGS. 15 (a), (b), and (c).
- the magnetic force means 316 according to the present embodiment is vertically moved at a predetermined interval with one magnetic field source 317.
- the two magnetic plates 3 18 a, 3 18 b formed of a magnetic material capable of being magnetized and demagnetized are provided opposite to each other, and the two magnetic plates 3 18 a, 3 18 b are vertically moved.
- the magnetic field source 317 is provided outside the space between the magnetic plates 318a and 318b.
- the magnetic field source 317 includes magnetic elements 317a, 317b, 317d, and a coil 317c.
- the magnetic elements 3 17 a, 3 17 b, and 3 17 d include a first portion 3 17 a, a second portion 3 17 b, and a coil 3 17 c formed separately from each other. It consists of a wound core 3 17 d.
- One end of the first portion 317a is connected to the magnetic plate 318a
- the other end of the second portion 317b is connected to the magnetic plate 318b
- the other end of the part 3 17a and one end of the second part 3 17b are connected to each end of the iron core 3 17d around which the coil 3 17c is wound, and are screwed or the like. Fixed.
- Reference numeral 319 denotes a spacer 319 formed of a non-magnetic material provided between the magnetic plate 318a and the magnetic plate 318b.
- FIG. 15 (b) shows the magnetic means 316 shown in FIG. 15 (a) from the side.
- the magnetic force means 316 protrudes from the facing surface of each of the magnetic plates 318a and 318b in each of the through portions 320, and the tips thereof are mutually opposed. It has a pair of protrusions 322 a and 322 b formed of a magnetic material that are provided apart from each other.
- the magnetic plates 3 18 a and 3 18 b and the protrusions 322 a Holes penetrate a and 322b up and down, and the nozzle penetrates the inside as shown in the enlarged cross section in the upper half of Fig. 15 (c).
- the lower half of Fig. 15 (c) shows an enlarged cross section of the protruding portion pair 323a, 323b according to another example.
- the protruding portion pairs 323a and 323b protrude from the respective magnetic plates at the opening edge of the insertion portion toward the facing surface in opposite directions to each other, and the leading ends thereof are separated from the facing surface by a first space A, respectively.
- each of the tips has a second interval B, which is shorter than the first interval A, separated by the nozzle 321.
- the magnetic field sources are provided outside of the space sandwiched by the magnetic plates 318a and 318b.
- the winding amount of the coil 3 17 c is not limited by the interval between the two magnetic plates 3 18 a and 3 18 b, but is The coil 3 17 c can be wound in an amount corresponding to the width and the length of the magnetic element 3 17 a, 3 17 b. Further, a plurality of coils can be provided in parallel. Therefore, a strong magnetic field can be supplied without widening the narrow gap between the two magnetic plates.
- 17a, 317b and 317d may be integrally formed, or may be integrally formed including the magnetic plates 318a and 318b. If they are formed separately, they can be divided into simple shapes as compared with the case where they are formed integrally, so that manufacturing is easy. Further, the ends of the first portion and the second portion formed separately may be overlapped, and a coil may be wound there.
- FIGS. 15 (a), (b) and (c) the case where one magnetic field source is provided has been described.
- two magnetic field sources 325 and 327 are provided outside the space between the magnetic plates 328a and 328b as shown in FIG. 16 and magnetic plates are provided on both sides of the magnetic plates 328a and 328b.
- 328 a and b may be installed so as to face each other along the plane direction.
- Each magnetic field source 325, 327 has coils 325c, 327c and magnetic elements 325a, 325b, 325d, 327a, 327b, 327d, as already described with reference to FIG. It is.
- the magnetic element includes a first portion 325 a, 327 a, a second portion 325 b, 327 b. Formed separately from each other, and a core 325 d, 327 around which a coil 325 c. Consists of d.
- One end of each of the first portions 325a and 327a is connected to the magnetic plate 328a so as to be at a diagonal position with respect to the magnetic plate 328a. The other ends are separated from each other across the magnetic plate 328b.
- first portion 3 25 a, 3 27 a and the second portion 3 25 b, 3 27 b Is connected to each end of the iron cores 325 d and 327 d around which the coils 325 c and 327 c are wound, and is fixed by screws or the like.
- the magnetic plates 328a and 328b are made of a magnetizable and demagnetizable magnetic material that is provided at predetermined intervals in the same manner as the magnetic plates 318a and 318b.
- a plurality of through portions 329 through which the nozzles are inserted are provided by vertically penetrating the two magnetic plates 328 a and 328 b. Note that the structure of each of the communication portions 329 is the same as that shown in FIG. 15 (c). In this example, a stronger magnetic field can be supplied than when only one magnetic field source is used.
- the number of magnetic field sources is two.
- the use of a large number of magnetic field sources such as three or four in the same manner is included in the scope of the present invention. Have been. 15th embodiment
- FIG. 17 shows magnetic means 330 according to the fifteenth embodiment.
- the magnetic force means 330 according to the present embodiment allows the pipe tip to be inserted into the insertion part 331 of the magnetic force means 330 in a cross contamination manner. This allows insertion and removal without causing nation.
- the magnetic force means 330 is connected to an electromagnet (or a permanent magnet) which is a magnetic field source (not shown), and is magnetically connected to the electromagnet and vertically opposed at a predetermined interval.
- the two magnetic plates 3 3 1 a, 3 3 1 b and the two magnetic plates 3 3 1 a, 3 3 1 b which are formed of magnetizable and demagnetizable magnetic materials And a plurality of through portions 332 provided so as to be able to insert a nozzle tip tip.
- the number of the communication portions 3332 is equal to or greater than the number of the pit chips of the integrated device. If the connection between the magnetic field source (not shown) and each of the magnetic plates 331a and 3311b is as shown in FIG.
- the magnetic plate 3311a is For example, the N pole is magnetized, and the magnetic plate 33 1 b is magnetized to the S pole.
- FIG. 17 (c) is a plan view of the through portion 3332, and FIG. 17 (b) is a cross-sectional view taken along the line XX '.
- the through-holes 33 are provided with a separation hole 333 with which the outer member of the nozzle comes into contact with or comes close to the outer surface of the pipe tip when the pipe tip as each nozzle passes through; 3 33 is provided adjacent to and is capable of horizontal movement of the pipe tip with the separation hole 3 33 so that the pipe tip can be inserted or withdrawn. It has an insertion hole 3 3 4 having a large opening.
- the nozzle outer member of the separation hole 33 33 protrudes toward the opposing surface side of each of the magnetic plates 3 31 a and 33 1 b near the opening edge of the separation hole 33 33, and the tip ends thereof are joined together.
- a pair of cylindrical protrusions 33 33 a and 33 33 b each having a substantially C-shaped cross section and through which the chip can pass through the inside formed of a magnetic material provided apart from each other.
- the projecting portions 3333a and 3333b provide a space through which the chip can pass without completely surrounding the chip on the side surface, and spatially communicate with the through hole 3334.
- the protruding portions 3 3 3 3 a and 3 3 3 b may be provided integrally with the magnetic plates 3 3 1 a and 3 3 1 b, but as shown in FIG. 17 (c), they are separately provided. It may be formed so that it can be attached to the holes formed in the magnetic plates 3311a and 3311b.
- the reason why the insertion / extraction hole 334 is provided in addition to the separation hole 333 is as follows.
- the separation hole 3 33 and the projecting portions 3 3 3 3 a, 3 3 3 3 Touch the b to contaminate the magnetic force means 330, or when inserting a new mounted pipe tip into the through section 331, the chip touches the contaminated separation hole 3 33 This is because, in order to prevent the chip from being contaminated and to cause cross contamination, insertion and removal are performed using a hole having a diameter sufficiently larger than the outer peripheral surface of the chip.
- FIGS. 17 (d) and 17 (e) show other examples of the insertion portion of the magnetic force means.
- each of the communication portions 3336 protrudes from the magnetic plates 335a and 3335b at the opening edge of the communication portion 3336 in the opposite direction to the facing surface side, and Each end is separated from the opposing surface by a first distance A, and each end is separated from the nozzle (or the separation hole 336) by a second distance shorter than the first distance A.
- a pair of protrusions 337a and 337b formed of a magnetic material that are spaced apart from each other so as to have the opposite polarity by magnetization.
- the opposing surfaces of the magnetic plates 335a and 335b may be removed.
- FIGS. 18 show the case where chip racks 357 and 358 are arranged below the magnetic force means 353 to attach or detach a pipe tip.
- 8 (c) and (d) show a case where a microplate 361 having 96 holes (8 rows ⁇ 12 columns) is arranged to perform suction or discharge.
- the magnetic force means 35 3 a large number of through-holes 354 through which the respective chips 3 60 are inserted are provided through the two magnetic plates 35 3 a and 35 3 b.
- the magnetic plates 35 3 a and 35 3 b can be magnetically connected to an electromagnet as a magnetic field source (not shown) or can be magnetically connected to a permanent magnet.
- 35 3 b are magnetized to have mutually opposite magnetic poles.
- Each of the through holes 354 has a separation hole 355 having a diameter through which only the small-diameter portion of the chip 360 can be inserted, and the separation hole 355 adjacent to the separation hole 355. 5 is provided so as to allow the chip to move horizontally, and has a pair of holes 356 that have a diameter through which the large diameter portion of the chip can be inserted. As shown in FIG. 18 (e), the separation holes 355 protrude toward the opposing surfaces of the magnetic plates 353a and 353b, and the leading ends thereof are spaced apart from each other.
- the walls of the projecting portions 364a and 364b have respective opposite polarities due to magnetization, and each correspond to a divided portion of the nozzle outer member.
- the through-holes 354 according to the present embodiment allow the passage of the large-diameter portion, so that the normal through-holes 17, 37, 57, which allow only the insertion of the small-diameter portion, 77, 97 or formed larger than the through-hole 331, according to the fifteenth embodiment, and occupies two normal through-holes.
- the standard 96-well microplate 361 which is normally used for the normal communication section and nozzle, cannot use all of the liquid storage sections. c) Only half of the 48 liquid storage units 363 shown by the black circles in (3) will be used. The range of the magnetic means 3553 used for that and the area of use 352a of the nozzle 351 are shown. In the present embodiment, the number of insertion parts is set so that the remaining 48 liquid storage units (open circles in FIG. 18 (c)), which are the other half of the 96-well microplate 361, are also available.
- nozzles and through-holes 354 In order to use such 54 nozzles and through-holes 354, as shown in Fig. 18 (a) and (b), the nozzles must be used according to the area of use 352a and 352b. Prepare chip racks 357 and 358 that hold chips at different holding positions. In this case, relief holes 359 are provided on both sides of the 48 chip holding holes to escape the nozzles that are not included in the nozzle use area 3 52 a and 35 2 b. .
- each insertion portion is not limited to that shown in FIG. 18 (e), but may be, for example, the structure shown in FIG. 17 (d) (e) (the diameter of the hole is larger). May be).
- a chip having a small-diameter portion and a large-diameter portion can be completely pulled out upward or downward from the through portion of the magnetic force means 353, so that a detachable chip can be attached or detached. Can be easily performed.
- the chip used by inserting it into the container is detached, Further, in order to mount a new chip, it is possible to reliably avoid cross-contamination due to the liquid adhering to the outer surface of the chip contaminating the magnetic means with respect to the through portion of the magnetic means.
- the magnetic force means 370 is particularly effective when the nozzle has a detachable small-diameter portion 375 and a large-diameter portion 376 which are detachable nozzles. I do.
- the magnetic force means 370 uses an electromagnet (or a permanent magnet) in which a coil 371 is wound near the center of a horseshoe-shaped magnetic element 378 formed of a magnetic material as a magnetic field source.
- It has a plurality of row-shaped members 372, 373 provided as follows.
- the row members 37 2, 37 3 are provided between the row members 37 2, 37 3 so as to protrude from the row members 37 2, 37 3 at a certain distance in the horizontal direction and at a certain length.
- the opposed convex portions 374 are magnetized so as to have opposite polarities, and are spaced apart from each other at intervals such that only the small diameter portion 375 of each nozzle can pass through. Further, between the adjacent convex portions 374 of the row members 372, 373, the large-diameter portion 376 of the nozzle is arranged so as to be able to pass through.
- the divided wall is a tip of each of the opposed convex portions 374.
- the chip can be inserted and removed without contaminating the magnetic means with the liquid attached to the outer surface of the chip or contaminating the outer surface of the chip with the liquid attached to the magnetic means. Therefore, according to the present embodiment, cross contamination can be completely avoided with a simple configuration.
- the integrated device 380 according to the present embodiment uses the magnetic force means 316 having the magnetic field source 317.
- the integrated device 380 is a container 380 1 having a large number of liquid storage portions (Pells) placed below the device (in this example, for example, a 96-hole microphone having 8 rows ⁇ 12 columns). (Aperture plate) for sucking and discharging the liquid.
- Cells liquid storage portions
- the integrated device 380 is a container 380 1 having a large number of liquid storage portions (Pells) placed below the device (in this example, for example, a 96-hole microphone having 8 rows ⁇ 12 columns). (Aperture plate) for sucking and discharging the liquid.
- a plurality of (in this example, 96 pieces are arranged in a matrix of 8 rows ⁇ 12 columns) plungers projecting downward, and the integrated body 380 has a plurality of sliding bodies 384 and a plunger inside. (8 to 12 columns arranged in a matrix of 8 rows and 12 columns) provided so that they can move up and down and slide. And a plurality of (96) detachable pipe tips 3221 arranged in a matrix (8 rows ⁇ 12 columns) attached to the tip of the storage section 382.
- the pipe tip 3221 is inserted into each of the above-mentioned insertion portions of the magnetic force means 316, and the tip of the pipe tip 321 is formed outside the lower magnetic plate. It penetrates up to.
- the upper part of the sliding member 384 is connected to the lower end of the ball screw 385. Further, the ball screw 385 is screwed with the nut portion 386. The nut portion 386 is driven to rotate by a rotation of a stepping motor 388 via a belt 389. By the rotation of the nut portion 386, the ball screw 385 moves up and down.
- the storage body 383, the magnetic means 316, and the stepping motor 388 are fixed to the vertical moving body 389.
- the sliding body 384 is supported by the vertical moving body 389 via a linear bearing 3900 and a rail 391 laid in a vertical direction for guiding the linear bearing 3900. You.
- the nut portion 3886 is supported by the vertically movable body 389 via a bearing 3886a.
- the storage section 382, the storage body 3883, the sliding body 3884, the mechanism such as the ball screw 3885, the stepping motor 3888, and the like constitute the suction / discharge means.
- the vertical moving body 389 is composed of a linear bearing 3939 and the linear bearing. It is supported so as to be able to move up and down with respect to the front-rear moving body 392 via the inner rail 394 laid vertically.
- the fore-and-aft moving body 392 has a ball screw 3996 and a stepping motor 398 for rotating and driving the ball screw 3996 via a coupler 397.
- the ball screw 3996 is screwed with the nut 395 to rotate the ball screw 396 to rotate the nut 395 and the vertical moving body 389 connected to the nut 395. Move up and down.
- front-rear moving body 392 can be moved in the front-rear direction by the linear motion bearings 402 and the rails 400 laid in the front-rear direction for guiding the linear motion bearings 402.
- the fore-and-aft moving body 392 is supported by a support 399 on which the rail 400 is provided and a leg section 401.
- the front-rear moving body 392 is driven so as to be positioned above the container 381. Place. Next, the vertical moving body 389 is moved up and down to insert the tip of the pipe tip 321 into the container 381. Next, the liquid is sucked or discharged from the container 381 by moving the action moving body 384 up and down. At that time, only the gas air is sucked and discharged to the storage section 382, and the liquid is sucked and discharged to the pit chip 3221. Therefore, the reservoir 382 does not come into contact with the liquid and is not contaminated by the liquid.
- the magnetic particles suspended in the liquid are adsorbed and separated on the inner wall of the tip chip 321 by controlling the magnetic force means 316, or the separated and adsorbed magnetic particles are returned to the liquid. Can be suspended.
- the contents of these embodiments are specifically described for better understanding of the present invention, and are illustrative and should not be construed as limiting. Therefore, it can be changed without changing the gist of the invention.
- the integrated device by arbitrarily combining the components such as the magnetic force unit, the nozzle, and the suction / discharge unit of the integrated device described above, with necessary changes.
- the method using an electromagnet as a method for generating a magnetic field in the magnetic force means has been mainly described, but a permanent magnet may be used.
- the permanent magnet itself should be rotated 90 ° or 270 ° around the axis of rotation.
- the magnetic poles are magnetized by contacting or approaching each plate or end of the magnetic member, and demagnetizing by moving the magnetic pole away from the magnetic member. Let it.
- the nozzle and the magnetic force unit have been described as separate bodies.
- the nozzle itself may be formed by the magnetic force unit to perform magnetization and demagnetization.
- the above-described object can be achieved by adopting the magnetization flattening method, the suction / discharge collective method, and the collective planar light detection method.
- each storage section is formed in a block-shaped storage body
- the storage body is not limited to this case, and the storage body may be an aggregate in which cylindrical storage sections are bundled.
- a rubber packing is provided on the inner wall of a plunger cylinder, or a combination of a rubber packing and an O-ring. Is also good.
- the magnetic force means has been described as applying or removing a magnetic force to the inside of the nozzle.
- the magnetic force means applies or removes a magnetic force to each liquid storage portion of the container or each force ram of the column group. It may be something like this.
- the inner diameter of the insertion part of the magnetic force means is determined based on the diameter of each nozzle, liquid storage part or column.
- the magnetic force means may be provided as a magnetic force device detachably from each integrated device.
- the number and arrangement of the nozzles, the insertion portions, and the liquid storage portions of the microplate are merely examples and should not be interpreted as limitations.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP99909237A EP1065001B1 (en) | 1998-03-19 | 1999-03-18 | Apparatus for integrating processing of magnetic particles, and method of controlling the same |
DE69939622T DE69939622D1 (de) | 1998-03-19 | 1999-03-18 | Apparat zur integration von magnetteilchen - verarbeitung und steuerungsverfahren |
JP2000536490A JP4431276B2 (ja) | 1998-03-19 | 1999-03-18 | 磁性粒子処理集積化装置及びその制御方法 |
US09/646,653 US6805840B1 (en) | 1998-03-19 | 1999-03-18 | Apparatus for integrated process of magnetic particles and method of controlling the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP10/70980 | 1998-03-19 | ||
JP7098098 | 1998-03-19 |
Publications (1)
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WO1999047267A1 true WO1999047267A1 (en) | 1999-09-23 |
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ID=13447196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1999/001365 WO1999047267A1 (en) | 1998-03-19 | 1999-03-18 | Apparatus for integrating processing of magnetic particles, and method of controlling the same |
Country Status (5)
Country | Link |
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US (1) | US6805840B1 (ja) |
EP (2) | EP1065001B1 (ja) |
JP (1) | JP4431276B2 (ja) |
DE (1) | DE69939622D1 (ja) |
WO (1) | WO1999047267A1 (ja) |
Cited By (10)
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WO2007081000A1 (ja) * | 2006-01-13 | 2007-07-19 | Universal Bio Research Co., Ltd. | 変形式分注チップ、変形式分注装置および変形式分注処理方法 |
WO2007111347A1 (ja) | 2006-03-28 | 2007-10-04 | Universal Bio Research Co., Ltd. | マイクロプレート処理装置およびマイクロプレート処理方法 |
WO2008026670A1 (fr) | 2006-08-30 | 2008-03-06 | Universal Bio Research Co., Ltd. | Séparateur de microplaque et procédé de séparation de microplaque |
JP2008538725A (ja) * | 2005-04-25 | 2008-11-06 | ダイナル バイオテック エーエス | 磁気分離装置 |
JP2009517067A (ja) * | 2005-12-02 | 2009-04-30 | バイオ−ノーブル オーワイ | 生物学的成分の濃縮ユニット及び濃縮方法 |
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- 1999-03-18 US US09/646,653 patent/US6805840B1/en not_active Expired - Fee Related
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JP2008538725A (ja) * | 2005-04-25 | 2008-11-06 | ダイナル バイオテック エーエス | 磁気分離装置 |
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US8921282B2 (en) | 2006-08-30 | 2014-12-30 | Universal Bio Research Co., Ltd. | Segmented process apparatus for microplate and segmented process method for microplate |
WO2008026670A1 (fr) | 2006-08-30 | 2008-03-06 | Universal Bio Research Co., Ltd. | Séparateur de microplaque et procédé de séparation de microplaque |
JP2011516075A (ja) * | 2008-04-09 | 2011-05-26 | バイオニア コーポレーション | 自動精製装置、マルチウェルプレートキット及び生物学的試料からヘキサンを抽出する方法 |
JP2012523820A (ja) * | 2009-03-11 | 2012-10-11 | バイオニア コーポレーション | リアルタイム核酸分析統合装置及びそれを利用したターゲット核酸の検出方法 |
WO2012036296A1 (ja) | 2010-09-17 | 2012-03-22 | ユニバーサル・バイオ・リサーチ株式会社 | カートリッジおよび自動分析装置 |
JP2021509947A (ja) * | 2017-11-17 | 2021-04-08 | ホンブレヒティコン システムズ エンジニアリング アクチェンゲゼルシャフト | 生体分子の可逆的固定化のためのデバイス及び方法 |
JP2021511514A (ja) * | 2018-01-24 | 2021-05-06 | ペルキネルマー ヘルス サイエンシーズ, インコーポレイテッド | 分離によるマイクロ流体チップ内の核酸の精製 |
Also Published As
Publication number | Publication date |
---|---|
JP4431276B2 (ja) | 2010-03-10 |
EP1065001B1 (en) | 2008-09-24 |
EP1065001A4 (en) | 2004-04-14 |
DE69939622D1 (de) | 2008-11-06 |
EP1671703A2 (en) | 2006-06-21 |
EP1065001A1 (en) | 2001-01-03 |
US6805840B1 (en) | 2004-10-19 |
EP1671703A3 (en) | 2006-07-05 |
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