WO2024065608A1 - Automatic control system of biochip and automatic control method therefor - Google Patents
Automatic control system of biochip and automatic control method therefor Download PDFInfo
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- WO2024065608A1 WO2024065608A1 PCT/CN2022/123075 CN2022123075W WO2024065608A1 WO 2024065608 A1 WO2024065608 A1 WO 2024065608A1 CN 2022123075 W CN2022123075 W CN 2022123075W WO 2024065608 A1 WO2024065608 A1 WO 2024065608A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
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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
Definitions
- the present disclosure relates to the field of biochip automation control, and in particular to an automation control system of a biochip and an automation control method thereof.
- Spatial Transcriptomics measures the total mRNA of a complete tissue section, combines the spatial information of the total mRNA with the morphological content, and plots the locations where all gene expressions occur, obtaining a complex and complete gene expression map of the biological process.
- Microscopic imaging and sequencing technology can be combined to obtain gene expression data while retaining the spatial location information of the sample to the greatest extent, providing important information on the relationship between cell function, phenotype, and location in the tissue microenvironment.
- Spatial transcriptomics technology obtains spatial location and corresponding gene expression information. By analyzing spatial transcriptomics data, we can know which signal transduction pathways are activated in certain cells. scientistss can select genes of interest through the data generated by spatial transcriptomics technology and display their spatially discernible expression on the original tissue sections. Since all mRNAs are captured, they are no longer limited to viewing only a single gene, but can select any number of genes in any combination to view and analyze together. These research processes require biochemical reactions to convert information in biological tissues into a detectable form, which involves multiple reagents and usually requires cumbersome manual operations to repeat multiple rounds or steps of biochemical reactions with different principles.
- 10X Genomics mainly provides solutions based on manual operation, and the supporting instrument solutions include: NanoString's laser capture microdissection (Laser capture dissection) based on Leica's Bond RX immunohistochemical stainer and GeoMx platform for multiple staining and imaging; Akoya's multiple staining and in situ imaging based on PhenoCycler-Fusion.
- the existing spatial omics instruments on the market mainly focus on multiple staining, or imaging after staining, or a combination of the two.
- These instruments can only process standard glass slides with a length and width of 25mm*75mm, and are not compatible with the automated control methods of chips of other sizes. They are also not compatible with other flat chips that are not glass slides.
- only the area of interest can be selected to collect the target object, making it difficult to achieve large-scale collection of all products. For example, the function of overall product collection cannot be performed for flat chips with a length and width of centimeters.
- ROI regions of interest
- Existing instruments generally require the target slide or chip to have additional areas for sealing and/or clamping, which cannot simultaneously take into account the high utilization rate of the chip and the minimization of reagent consumption. Human intervention is required.
- the present disclosure provides an automatic control system for a biochip, comprising:
- the working area includes: at least one biochip reaction area, in which a biochip box for accommodating at least one biochip is arranged, the biochip box is provided with a concave cavity, and the concave cavity is configured to accommodate the biochip; a reagent loading area, in which various types of reagents are stored; and
- the liquid transfer mechanism is constructed to be movable on the plane where the working area is located and to be able to rise and fall in a direction perpendicular to the plane so as to reach the reagent loading area to suck the reagent and add the reagent to the biochip.
- the automated control system of the biochip includes at least one of the following:
- the pipette tip loading area is used to store the pipette tips
- a product collection area used for collecting the product in the concave cavity
- a biochip loading area storing a biochip box containing at least one biochip
- biochip unloading area where biochip cassettes are removed
- a sealing cover plate area storing sealing cover plates configured to seal a biochip box, a reagent loading area and/or a product collection area;
- a code scanning area in which the biochip box and the biochip contained therein are scanned respectively;
- a cover which is openably disposed in the biochip reaction area to seal the biochip box;
- the temperature control cover area is used to store the temperature control cover.
- the temperature control cover is constructed to cover the reagent loading area, the product collection area, and the biochip reaction area.
- the automated control system of the biochip includes at least one of the following:
- a temperature control zone including a low-temperature reagent loading zone, a product storage zone and/or at least one biochip reaction zone, wherein the temperature of the temperature control zone can be controlled;
- the concave cavity includes a bottom surface and a circumferential wall, the bottom surface is configured to place a biochip thereon, and a groove portion is provided on the circumferential wall, the groove portion is configured to be further away from the bottom surface than other portions of the circumferential wall to facilitate the pipetting mechanism to extract the product from the concave cavity.
- the groove portion includes an arc segment and/or at least two inclined surface segments intersecting along the circumference of the concave cavity.
- At least two grooves are evenly spaced apart along the circumference of the concave cavity.
- the product collection area is configured to enable the biochip cartridge to be tiltable relative to a plane in which the product collection area resides.
- the biochip box has a tilt angle of no less than 15 degrees.
- the product collection area includes a tilt mechanism configured to allow the biochip cartridge to be tilted relative to a plane in which the product collection area is located.
- the tilting mechanism includes a driving device and a bracket holding the biochip box, and the bracket is drivingly connected to the driving device to rotate the biochip box.
- the driving device includes a motor, a driving wheel drivingly connected to the motor, and a driven wheel drivingly connected to the driving wheel, and the driven wheel is connected to the bracket.
- the automated control system of the biochip includes:
- the grabbing mechanism is constructed to grab the biochip box and move it on the plane where the working area is located and to be able to rise and fall in a direction perpendicular to the plane, so as to grab the biochip box and send it to at least one of the code scanning area, reagent loading area, chip loading area, chip unloading area, biochip reaction area and product collection area.
- the automated control system of the biochip includes:
- the waste liquid extraction mechanism includes a waste liquid extraction component that is configured to extract waste liquid from the reaction on the biochip.
- the waste liquid extraction component can move on the plane where the working area is located and can be raised and lowered in a direction perpendicular to the plane so as to reach at least one biochip reaction area to extract waste liquid from the biochip box and discharge the waste liquid.
- the waste liquid extraction mechanism includes a suction pump, which is connected to the waste liquid extraction component, and the suction pump includes at least one of the following: an air pump, a diaphragm pump and a plunger pump; and/or the waste liquid extraction component includes a needle or a pipette tip.
- the automated control system of the biochip includes a cleaning area for the waste liquid extraction mechanism to discharge waste liquid thereon, to clean the waste liquid extraction mechanism and/or to discharge condensed water from the temperature control area.
- the automated control system of the biochip includes:
- the negative pressure adsorption component is configured to adsorb the biochip and is movable on the plane where the working area is located and can be raised and lowered in a direction perpendicular to the plane so as to reach the code scanning area, the biochip loading area and/or the biochip unloading area.
- the pipetting mechanism is configured to be movable to reach the reagent loading area, the pipette tip loading area and at least one biochip reaction area, so that the pipetting mechanism can move to the pipette tip loading area to pierce the pipette tip, move to the reagent loading area to aspirate the reagent, move to multiple biochip reaction areas and add the aspirated reagent to the biochip.
- the temperature of the low temperature reagent loading zone is no higher than 4 degrees Celsius.
- the pipette tip loading area is configured into at least two groups of push-pull containers, each group of containers including multiple boxes of pipette tips.
- the pipetting mechanism includes a plurality of pipettes, each of which can independently raise and lower and replace a pipette tip.
- each pipette is arranged along the length or width direction of the working area, and each pipette can be equidistant from or equidistant from each other.
- the pipetting mechanism includes a first moving mechanism capable of moving the pipetting mechanism
- the waste liquid extraction mechanism includes a second moving mechanism capable of moving the waste liquid extraction component
- the first moving mechanism and the second moving mechanism are independent of each other or integrated together.
- the first moving mechanism and the second moving mechanism both include an arm, and the arm can move on the plane where the working area is located and rise and fall in a direction perpendicular to the plane.
- the gripping mechanism includes a clamping jaw.
- the biochip cartridge is provided with a plurality of concave cavities, and the plurality of concave cavities are arranged in at least one row.
- At least the biochip reaction area includes a plurality of biochip reaction areas, and the temperatures of the plurality of biochip reaction areas are controlled independently of each other.
- the gripping mechanism is configured to perform one of the following steps to confirm whether the corresponding association between the biochip and the biochip box is accurate:
- the grabbing mechanism grabs the biochip box containing the biochip and scans the biochip and the biochip box in the code scanning area respectively;
- the gripping mechanism grabs the biochip box in the chip unloading area to scan the code, and the negative pressure adsorption component adsorbs each biochip one by one to scan the code.
- an automated control system for a biochip includes a biochip placed in a concave cavity, wherein the bottom area of the concave cavity is larger than the area of the biochip, so that a gap is formed between the circumferential wall of the concave cavity and the biochip.
- the present disclosure also provides an automated control method for an automated control system of a biochip, wherein the automated control system of the biochip is used for capturing transcriptomes and collecting products, and the capturing of transcriptomes and collecting products includes at least one of the following operation steps:
- Incubation The incubation reagent is sucked by the pipetting mechanism, and then the incubation reagent is added to the biochip by the pipetting mechanism. After the incubation, the waste liquid is pumped away by the waste liquid pumping mechanism;
- Tissue permeabilization The permeabilization reagent is sucked by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the permeabilization is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Reverse transcription The reverse transcription reagent is sucked up by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the reverse transcription is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Tissue removal The tissue removal reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the tissue removal reagent to add the tissue removal reagent to the biochip. After the tissue removal is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Nucleic acid release The nucleic acid release reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the nucleic acid release reagent to add the nucleic acid release reagent to the biochip to complete the nucleic acid release;
- a wash is performed between the incubation step and the tissue permeabilization step and/or a wash is performed between the tissue permeabilization step and the reverse transcription step and/or a wash is performed between the reverse transcription step and the tissue removal step and/or a wash is performed between the tissue removal step and the nucleic acid release step.
- the cleaning step is: aspirating the cleaning reagent through the pipetting mechanism, then using the pipetting mechanism to carry the pipette tip that has absorbed the cleaning reagent to add the cleaning reagent to the biochip, and then using the waste liquid extraction component to extract the waste liquid.
- the present disclosure provides an automated control method for an automated control system of a biochip, wherein the automated control system of the biochip is used for labeling and capturing a proteome and collecting a product, and implementing labeling and capturing a proteome and collecting a product includes at least one of the following operation steps:
- Blocking The blocking solution is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the blocking solution to add the blocking solution to the biochip. After the blocking is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Antibody incubation The antibody reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip with the antibody reagent sucked to add the antibody reagent to the biochip. After the incubation is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Drying Drying the biochip in the biochip reaction area after the waste liquid is removed;
- Tissue permeabilization The permeabilization reagent is sucked by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the permeabilization is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Reverse transcription The reverse transcription reagent is sucked up by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the reverse transcription is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Tissue removal The tissue removal reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the tissue removal reagent to add the tissue removal reagent to the biochip. After the tissue removal is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
- Nucleic acid release The nucleic acid release reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the nucleic acid release reagent to add the nucleic acid release reagent to the biochip to complete the nucleic acid release;
- washing is performed between the blocking step and the antibody incubation step and/or washing is performed between the antibody incubation step and the drying step and/or washing is performed between the drying step and the tissue permeabilization step and/or washing is performed between the tissue permeabilization step and the reverse transcription step and/or washing is performed between the reverse transcription step and the tissue removal step and/or washing is performed between the tissue removal step and the nucleic acid release step.
- the cleaning step includes: sucking the cleaning reagent through the pipetting mechanism, then using the pipetting mechanism to carry the pipette tip that has sucked the cleaning reagent to add the cleaning reagent to the biochip, and then using the waste liquid extraction component to extract the waste liquid.
- the automated control system of the biochip provided by the present disclosure and its application can realize the scalable automated scheduling and control of multiple chips, realize the labeling and capture of biological information in the tissue, and realize the collection function of the captured products, and can be applied to the analysis of multiple omics such as transcriptome, proteome, and immunology.
- the method and system provided by the present disclosure meet the processing requirements of multiple biochips, high utilization, high throughput, and high automation.
- FIG1 is an overall schematic diagram of an automated control system of a biochip disclosed herein;
- FIG2 is a schematic diagram of the layout of the working area of the automatic control system of the biochip disclosed in the present invention.
- FIG3 is a schematic diagram of a manipulator system of an automated control system for a biochip disclosed herein;
- FIG4 is a schematic diagram of a pipetting mechanism
- FIG5 is a schematic diagram of a waste liquid extraction mechanism and a grasping mechanism of a liquid transfer mechanism
- FIG6 is a schematic diagram of a chip loading area 414, a chip unloading area 416 and a biochip box of the automated control system of the biochip disclosed in the present invention
- FIG. 7 is a schematic diagram of a sealing cover plate area 410 of an automated control system for a biochip disclosed herein;
- FIG8 is a schematic diagram of a tilting mechanism 4081 of a product collection area 408 of an automated control system of a biochip disclosed herein;
- FIG9 is a schematic diagram of a biochip box 6 containing a biochip 7 according to the present disclosure.
- FIG10 is a flow chart of performing transcriptome capture and collection using the automated control system of the biochip disclosed herein;
- FIG. 11 is a flow chart showing the process of performing proteome capture and collection using the automated control system of the biochip disclosed herein.
- the automatic control system 1 of the present disclosure includes a housing 2, an operating arm system 3, a work area 4, and an indicator light 5.
- the work area 4 is provided with a plurality of stations and devices for chip biochemical experiments, and the operating arm system 3 is used to automatically operate the steps of each biochemical experiment in the work area 4 according to instructions.
- the indicator light 5 is used to inform the user whether the automatic control system 1 is currently in working state, shutdown state, normal working state, abnormal working state, etc.
- the working area 4 includes a working platform 401, on which are provided: a pipette tip loading area 403, a chip loading area 414, a chip unloading area 416, a sealing cover area 410, a temperature control cover area 411, a low-temperature reagent loading area 413, a room temperature reagent loading area 409, a reagent warm bath area (optional), a biochip reaction area 406, a pipette tip discarding area 405, a cleaning area 407, a code scanning area 415, a product collection area 408 and a product storage area 412, etc.
- the pipette tip 3021 can be a disposable pipette tip.
- the present invention uses the operating arm system 3 to accurately control the pipetting mechanism to extract/add liquid and the waste liquid extraction mechanism 304 to extract waste liquid on the working platform 401 of the working area 4, thereby realizing fully automatic operations such as cleaning, tissue permeabilization, reverse transcription, tissue removal, nucleic acid release and product collection.
- the manipulator system 3 includes a bracket 301, a pipetting mechanism 302, a gripping mechanism 303, a waste liquid extraction mechanism 304, a negative pressure adsorption component 306, and a moving mechanism thereof in the XYZ axis direction (X is the horizontal long side direction of the working area, Y is the horizontal short side direction, and Z is the vertical height direction).
- the bracket 301 supports the manipulator system 3 on the working platform 401, and the pipetting mechanism 302 includes a four-channel variable-distance pipette 3022.
- Each pipette 3022 can independently control the lifting and replacement of the pipette tip 3021, and has the functions of empty suction detection and needle blockage detection, and has the function of liquid level detection. It can independently control the movement on the plane where the working platform is located and the follow-up suction and discharge of liquid along the Z axis.
- the four-channel pipette 3022 is arranged along the Y axis direction, and can realize synchronous movement in the XY axis direction and equidistant opening and closing of each channel in the Y axis direction with adjustable spacing.
- All pipettes 3022 can cover the pipette tip loading area 403, the biochip reaction area 406, the product storage area 412, the room temperature reagent loading area 409, the low temperature reagent loading area 413, the pipette tip discarding area 405, etc.
- the gripping mechanism 303 may include a clamping claw 3031, and may be automatically controlled, with an opening and closing range adapted to a standard well plate, and the gripping targets include a biochip box 6, a sealing cover plate 4101, and a temperature control cover plate 4111, etc., and has a function of determining the position, and the travel covers the chip loading area 414, the chip unloading area 416, the code scanning area 415, the sealing cover plate area 410, the temperature control cover plate area 411, the product collection area 408, the product storage area 412, the low temperature reagent loading area 413, the biochip reaction area 406, etc.
- the clamping claw 3031 grips the biochip box 6 to the biochip reaction area 406 for biochemical reaction, and grips the temperature control cover plate 4111 to seal the product storage area 412, the low temperature reagent loading area 413, and/or the biochip reaction area 406.
- the gripping mechanism 303 can perform rotation adjustment under the control of a motor or a transmission mechanism to better place the gripped object into the working area 4 .
- the temperature control cover plate 4111 optionally has a heating function, and can be grabbed and transported by the clamping claw 3031 from the multi-layer stacking rack of the temperature control cover plate area 411, for example, to cover the sealing cover plate 4101 on the sealed biochip box 6, or directly cover the biochip box 6, so that the temperature control cover plate 4101 heats the top area of the biochip box 6, reducing the condensation water generated in the biochip box 6 due to the temperature difference between the top area of the biochip box 6 and the bottom area of the biochip box 6 heated by the temperature control area.
- Each layer of the multi-layer stacking rack of the temperature control cover plate area 411 can be placed with a temperature control cover plate 4111, and the multi-layer stacking rack is the same as the multi-layer stacking racks 4141 and 4102 shown in FIGS. 6 and 7 .
- the waste liquid extraction mechanism 304 includes a waste liquid extraction component 3041, a suction pump, a connecting pipeline and a fixing member.
- the waste liquid extraction component 3041 is connected to the suction pump through a pipeline, and has independent XYZ axial motion control.
- the pipeline can follow the movement of the waste liquid extraction component 3041 without interference.
- the suction pump is, for example, an air pump, a diaphragm pump or a plunger pump.
- the movement range of the waste liquid extraction component 3041 covers the cleaning area 407 and the biochip reaction area 406, and the waste liquid extraction component 3041 can be a needle-shaped member.
- the negative pressure adsorption component 306 is used to adsorb the chip, for example, to perform chip scanning.
- Each negative pressure adsorption component 306 is arranged along the Y-axis direction and can move independently in the Z-axis direction.
- the pipeline can follow the movement, and the stroke covers the chip unloading area 416 and the scanning area 415.
- the negative pressure adsorption component 306 can be a vacuum suction cup.
- the negative pressure adsorption component 306 is integrated with the waste liquid extraction component 3041, and can also be independently set with the waste liquid extraction component 3041.
- the biochip reaction area 406 includes a cover 4061, which is disposed in the biochip reaction area 406 in an openable and closable manner and is used to seal the biochip box 6.
- the cover 4061 has a heating function, and can independently control the temperature rise and fall within the range of 25-100° C., and is used to heat the biochip box 6 and/or the sealing cover plate 4101 to reduce condensation water generated due to temperature difference.
- the temperature control area includes two low temperature areas and three biochip reaction areas 406.
- the two low temperature areas are respectively a low temperature reagent loading area 413 and a product storage area 412.
- a constant temperature can be set within the range of 0-25°C, and the condensed water generated at low temperature is discharged through a pipeline.
- the three biochip reaction areas 406 can perform temperature rise and fall during the biochip reaction, and can accurately and independently control their respective temperatures within the range of 25-70°C.
- the maximum control temperature is higher than 90°C.
- the cover 4061 cooperates with the sealing cover plate 4101 to seal the biochip box 6.
- the cover 4061 and the sealing cover plate 4101 are in contact with each other for heat transfer, so as to avoid the generation of condensed water on the lower surface of the sealing cover plate 4101, effectively reducing the evaporation amount and ensuring the normal progress of the biochemical reaction. .
- control of the waste liquid extraction mechanism 304, the condensed water collection area, the pump, the switch and the rotary valve can realize the functions of cleaning the waste liquid extraction mechanism 304 and discharging the condensed water in the low temperature area in the cleaning area 407.
- the product collection area 408 is constructed with a tilting function to adjust the angle of the biochip box 6 thereon relative to the plane where the working area 4 is located, so as to tilt the biochip box 6 when collecting nucleic acids, which is beneficial to reduce residual liquid.
- a tilting mechanism 4081 is provided on the product collection area 408 , and the tilting mechanism 4081 includes a driving device and a bracket 40812 for holding the biochip box 6 , and the driving device is connected to the bracket 40812 to rotate the biochip box 6 so that the chip box 6 is tilted.
- the driving device includes a motor 40811, a driving wheel 40814 connected to the motor 40811, and a driven wheel 40815 connected to the driving wheel 40814 through a belt 40816, and the driven wheel 40815 is connected to the bracket 40812.
- the motor 40816 drives the bracket 40812 to rotate through the driving wheel 40814, the belt 40816 and the driven wheel 40815, the biochip box 6 reciprocates with the bracket 40812 within a certain angle range, and the angle range ensures that the inclination angle of the biochip box 6 is not less than 15 degrees, and at the same time ensures that there is no risk of leakage of the motor, and allows the clamp 3031 to clamp the biochip box 6 and transfer it between the bracket 40812 and other stations.
- the driving device can also use gear transmission, chain transmission, etc. to drive the bracket 40812 to rotate.
- the biochip box 6 is provided with a plurality of concave cavities 61, and the biochip is accommodated in the concave cavities 61.
- the concave cavity 61 includes a bottom surface 612 and a circumferential wall 613, the biochip is placed on the bottom surface 612, and a groove portion 611 is provided on the circumferential wall 613, the shape of the groove portion 611 is designed to facilitate the pipetting mechanism 302 to extract the product from the concave cavity 61, and compared with other parts of the circumferential wall 613 except the groove portion 611, the groove portion 611 is further away from the bottom surface 612 or the biochip, so that the pipetting mechanism 302 is convenient to extract the product from the concave cavity 61.
- the biochip 7 is placed in the concave cavity 61 of the biochip box 6.
- the area of the biochips 7 is smaller than the area of the bottom surface 612, so that there is a gap between the biochip 7 and the circumferential wall 613 along the circumference of the bottom surface 612 of the concave cavity 61, so that when the biochip box 6 is tilted, the gap forms a channel for the flow of products, so that the products flow from the high side to the low side.
- the groove portion 611 includes a first slope segment 6111 and a second slope segment 6112 that intersect the circumferential wall 613.
- the number of slope segments may be greater than two.
- the groove portion 611 may also include an arc segment, such as a circular arc.
- At least two grooves 61 are evenly spaced along the circumference of the concave cavity 61. As shown in Fig. 8, at least two grooves 61 are evenly spaced along the circumference of the concave cavity 61, which facilitates the pipetting mechanism 302 to extract products from different directions.
- the low temperature reagent loading area 413 and the normal temperature reagent loading area 409 are used to store reagents under different temperature conditions.
- the low temperature reagent loading area is suitable for storing reagents that are relatively stable at a temperature lower than room temperature (e.g., about 4°C), and the temperature is controlled in combination with the temperature-controlled low temperature area, while the normal temperature reagent loading area 409 is suitable for storing reagents that are relatively stable at room temperature.
- the pipette tip loading area 403 is composed of, for example, 4 boxes as a group, which can be divided into multiple groups (for example, two groups) and placed in drawer-type containers, which can be pushed and pulled in and out of the working area 4 as a whole.
- the two groups of gun tip box drawers, the chip loading area 414, the chip unloading area 416, the sealing cover area 410, and the temperature control cover area 411 all have sensors to detect whether they are in place.
- the code scanning area 415 can be provided with multiple code scanners, which can realize the code scanning function in two forms, including the container side and the chip bottom.
- the biochip box 6 is removed by the clamping jaws 3031 of the second moving mechanism 3052, so as to transfer the biochip box 6 without damaging the biochip; the sealing cover plate 4101 is grasped by the clamping jaws 3031 to seal the biochip box 6.
- the sealing cover plate area 410 multiple sealing cover plates 4101 are placed in a multi-layer stacking rack 4102, and a sealing cover plate 4101 is placed on each layer of the multi-layer stacking rack 4102, so that multiple sealing cover plates 4101 are stacked up and down in the multi-layer stacking rack 4102, so that it is convenient to take multiple sealing cover plates 4101 in sequence from top to bottom.
- the low-temperature reagent loading area 413 and the product collection area 408 are both thermostatically controlled to achieve refrigeration of reagents and preservation of products; the biochip reaction area 406 adopts variable temperature control to improve work efficiency; the structural design takes into account the convenience of user operation, convenient replacement of consumables and reagents, and also reserves reagent space for potential application expansion. There is no need to transfer a single active biochip separately in the working area 4, and there is no need to reserve additional space on the biochip, ensuring the maximum utilization area of the biochip.
- the biochip is placed in the biochip box 6.
- a single biochip box 6 can accommodate multiple (e.g., 8) chips.
- the working area 4 can accommodate multiple (e.g., 3) biochip reaction areas 406.
- the reaction temperature in each biochip reaction area 406 can be independently controlled, and a single chip can achieve precise pipetting control, thereby maximizing the throughput.
- the biochip box 6 includes a plurality of concave cavities 61 for accommodating a plurality of biochips (e.g., 8 10 mm*10 mm sheets), and each of four concave cavities 61 is a row.
- the back code of the chip is associated with the two-dimensional code of the biochip box by scanning the code, and then the entire biochip box is manually placed in the chip loading area 414.
- the biochip box 6 and the chip number are entered into the system by identifying the two-dimensional code on the side of the biochip box 6.
- the shape of the biochip box 6 satisfies the need to be gripped by the gripper 3031 of the gripping mechanism.
- a plurality of biochip boxes 6 are placed in a multi-layer stacking rack 4141, and a biochip box 6 is placed on each layer of the multi-layer stacking rack 4141, so that a plurality of biochip boxes 6 are stacked up and down in the multi-layer stacking rack 4141, so that it is convenient to take a plurality of biochip boxes 6 in sequence from top to bottom.
- the first corresponding association of the biochip and the biochip box 6 by scanning the code can be achieved by scanning the code, for example, manually scanning the code to associate the chip and the biochip box and then sending them to the chip loading area 414.
- the corresponding association between the chip and the biochip box is confirmed by scanning the code.
- the corresponding association is confirmed by one of the following methods:
- the grabbing mechanism 303 grabs the biochip box 6 containing the biochip and scans the biochip and the biochip box in the code scanning area 415 respectively;
- the automation level is high and no human intervention is required.
- an automated control system using a biochip is provided to achieve transcriptome capture and product collection.
- a single biochip box 6 includes 8 concave cavities 61 for accommodating 8 chips.
- the code on the back of each chip is associated with the QR code of the biochip box 6 by scanning the code, and then the entire biochip box 6 is manually placed in the chip loading area 414.
- the clamp 3031 moves the biochip box 6 to the scanning area 415 to scan and identify the QR code on the side of the biochip box 6, and the number of the biochip box 6 and the corresponding chip is entered into the system together.
- Cleaning steps control the pipette 3022 to move to the pipette tip loading area 403, pick up the pipette tip 3021, run to the position corresponding to the cleaning reagent in the reagent loading area, descend along the Z axis to execute the liquid level detection function of the pipette 3022, and after success, absorb the set volume of cleaning reagent, then the pipette 3022 runs to the biochip reaction area 406, and descends along the Z axis to a certain height at the corresponding concave cavity 61 of the biochip box 6 to accurately discharge the liquid.
- Waste liquid extraction step control the clamp 3031 to transfer the sealing cover on the biochip box 6 to the sealing cover area 410, the waste liquid extraction component 3041 runs to the corresponding concave cavity 61 of the biochip box 6, descends along the Z axis and controls the waste liquid pump, opens the valve of the waste liquid pump for 3-10s, lifts up along the Z axis and runs to the cleaning area 407, starts the cleaning pump to inject water to clean the outer wall of the waste liquid extraction component 3041, and starts the waste liquid pump to pump water to clean the inner wall of the waste liquid extraction component 3041.
- Tissue permeabilization step control the pipette 3022 to take the pipette tip 3021 and extract the permeabilization reagent, add the permeabilization reagent to 4 chips as a group at the same time, and the software records the exact time of adding the permeabilization reagent and starts timing.
- the pipette extracts the permeabilization termination reagent before the end of the permeabilization time, adds it to the concave cavity 61 of the biochip box 6 at a precise time point, and terminates the permeabilization reaction; or removes the reaction waste liquid at the specified permeabilization time, and quickly adds the cleaning reagent, and then removes the waste liquid.
- the entire pipetting process is controlled within 3 minutes so that the chips of adjacent groups can be processed separately.
- Reverse transcription After tissue permeabilization, add reverse transcription reagent to the cleaned chip and incubate at a certain temperature (e.g., 42°C) for more than 3 hours. If reverse transcription reagent is added in advance to meet the needs of processing chips with different permeabilization times in the same biochip box 6, then adjust the temperature to 42°C after all concave cavities 61 in the biochip box 6 have been added, and incubate at 42°C for more than 3 hours.
- a certain temperature e.g., 42°C
- Tissue removal After reverse transcription, add tissue removal reagent to the washed chip and incubate at 55°C for more than 10 minutes.
- nucleic acid release After tissue removal, add nucleic acid release reagent to the cleaned chip and incubate at 55°C for more than 3 hours.
- Nucleic acid collection Use the clamp 3031 to transfer the biochip box 6 that has completed nucleic acid release to the product collection area 408, tilt it about 20 degrees, take the pipette tip 3021 with the pipette, and lower it along the Z axis above the product collection area 408 until it touches the product surface in the concave cavity 61.
- the pipette extracts the released nucleic acid and transfers the collected product to the well plate in the product storage area 412 for storage.
- Replace the new pipette tip 3021 to extract the cleaning solution again, rinse the concave cavity 61, and collect the product again, and transfer the collected product to the corresponding well of the same well plate to merge with the product collected last time.
- the second and third biochip boxes 6 will respectively start to perform the cleaning steps on the second and third biochip boxes 6 when the previous biochip box 6 enters the reverse transcription step and incubates for a long time, ensuring that the steps before the reverse transcription step are not interrupted and the permeabilization time can be strictly controlled.
- an automated control system using a biochip is provided to achieve protein group labeling and capture product collection.
- a single biochip box 6 includes a concave cavity 61 for 8 chips.
- the code on the back of each chip is associated with the QR code of the biochip box 6 by scanning the code, and then the entire biochip box 6 is manually placed in the chip loading area 414.
- the clamp 3031 moves the biochip box 6 to the scanning area 415 to scan and identify the QR code on the side of the biochip box 6, and the number of the biochip box 6 and the corresponding chip is entered into the system together.
- Cleaning steps control the pipette to move to the pipette tip loading area 403, pick up the pipette tip 3021, move to the position corresponding to the cleaning reagent 1 in the reagent loading area, descend along the Z axis to perform the liquid level detection function of the pipette, and after success, absorb the set volume of cleaning reagent 1, then the pipette moves to the biochip reaction area 406, and descends along the Z axis to a certain height at the corresponding concave cavity 61 of the biochip box 6, and accurately discharges the liquid. Repeat the cleaning 3 times.
- Waste liquid extraction step control the clamp 3031 to transfer the sealing cover on the biochip box 6 to the sealing cover area 410, the waste liquid extraction component 3041 runs to the corresponding concave cavity 61 of the biochip box 6, descends along the Z axis and controls the waste liquid pump, opens the valve of the waste liquid pump for 3-10s, lifts up along the Z axis and runs to the cleaning area 407, starts the cleaning pump to inject water to clean the outer wall of the waste liquid extraction component 3041, and starts the waste liquid pump to pump water to clean the inner wall of the waste liquid extraction component 3041.
- Antibody incubation After removing the blocking solution, control the pipette to move to the pipette tip loading area 403, pierce the pipette tip 3021, move to the position corresponding to the antibody reagent in the reagent loading area, accurately absorb 50-100 ⁇ L of the antibody reagent prepared in advance, then move the pipette to the biochip reaction area 406, and descend to a certain height along the Z axis at the corresponding concave cavity 61 of the biochip box 6, accurately spit the liquid so that the antibody reagent evenly covers the chip surface, control the clamp 3031 to grab the sealing cover 4101 to seal the biochip box 6, and incubate at room temperature for 45 minutes.
- Cleaning after antibody incubation Control the pipette to use the pipette tip 3021 to extract 300 ⁇ L of cleaning reagent 2, add it to the corresponding concave cavity 61 of the biochip box 6, and then perform the waste liquid extraction operation. Repeat the cleaning and waste liquid extraction for more than 3 times; then repeat the aforementioned cleaning steps using cleaning solution 1 and the waste liquid extraction steps.
- Proteome labeling and capture and product collection also include tissue permeabilization, reverse transcription, tissue removal, nucleic acid release, product collection and other steps, which are the same as the corresponding steps of transcriptome capture and product collection.
- the collected products will be processed for subsequent sequencing interpretation to ultimately obtain the spatial distribution of complementary proteins corresponding to specific antibodies with spatial localization information, thereby obtaining the spatial localization information of the proteome.
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Abstract
Description
本公开涉及生物芯片自动化控制领域,特别涉及一种生物芯片的自动化控制系统及其自动化控制方法。The present disclosure relates to the field of biochip automation control, and in particular to an automation control system of a biochip and an automation control method thereof.
空间转录组(Spatial Transcriptomics)是测量完整组织切片的总mRNA,将总mRNA的空间信息与形态学内容相结合,并绘制所有基因表达发生的位置,获得生物过程复杂而完整的基因表达图谱。可以结合显微成像和测序技术在获得基因表达数据的同时最大程度的保留样本的空间位置信息,为细胞功能、表型和组织微环境中位置的关系提供了重要信息。Spatial Transcriptomics measures the total mRNA of a complete tissue section, combines the spatial information of the total mRNA with the morphological content, and plots the locations where all gene expressions occur, obtaining a complex and complete gene expression map of the biological process. Microscopic imaging and sequencing technology can be combined to obtain gene expression data while retaining the spatial location information of the sample to the greatest extent, providing important information on the relationship between cell function, phenotype, and location in the tissue microenvironment.
空间转录组技术获取了空间位置和对应的基因表达信息,通过对空间转录组学数据执行分析,可以知道某些细胞是由哪些信号传导通路激活的。科学家们可通过空间转录组学技术产生的数据选择感兴趣的基因,并在原始的组织切片上显示其空间可辨的表达。由于捕获了所有mRNA,因此不再受限于只查看单个基因,而能够以任意组合的形式选择任意数量的基因来一起查看和分析。这些研究过程都需要通过生化反应将生物组织内的信息转换成可以探测的形式,其中涉及多种试剂以及通常需要繁琐的人工操作来重复多轮或者多步不同原理的生化反应。Spatial transcriptomics technology obtains spatial location and corresponding gene expression information. By analyzing spatial transcriptomics data, we can know which signal transduction pathways are activated in certain cells. Scientists can select genes of interest through the data generated by spatial transcriptomics technology and display their spatially discernible expression on the original tissue sections. Since all mRNAs are captured, they are no longer limited to viewing only a single gene, but can select any number of genes in any combination to view and analyze together. These research processes require biochemical reactions to convert information in biological tissues into a detectable form, which involves multiple reagents and usually requires cumbersome manual operations to repeat multiple rounds or steps of biochemical reactions with different principles.
现有的空间学研究技术主要基于微流控芯片、激光显微切割、靶向多重染色、带寡聚核苷酸链修饰的捕获芯片等。其中10X基因组学主要提供基于手动操作的方案,提供配套仪器解决方案的有:NanoString公司的基于Leica的Bond RX免疫组化染色仪和GeoMx平台执行多重染色和成像的激光捕获显微切割(Laser capture dissection);Akoya公司基于PhenoCycler-Fusion的多重染色和原位成像。以上这些或者基于半自动的生化操作+显微成像+测序,或者基于全自动的显微镜和手动的生化操作,或者基于单张芯片的全自动多重染色+显微成像,均难以在生化反应自动化程度高、空间分辨率高、样品处理通量大、捕获范围广等方面兼顾。Existing spatial research technologies are mainly based on microfluidic chips, laser microdissection, targeted multiple staining, capture chips with oligonucleotide chain modifications, etc. Among them, 10X Genomics mainly provides solutions based on manual operation, and the supporting instrument solutions include: NanoString's laser capture microdissection (Laser capture dissection) based on Leica's Bond RX immunohistochemical stainer and GeoMx platform for multiple staining and imaging; Akoya's multiple staining and in situ imaging based on PhenoCycler-Fusion. The above are either based on semi-automatic biochemical operations + microscopic imaging + sequencing, or based on fully automatic microscopes and manual biochemical operations, or based on fully automatic multiple staining + microscopic imaging on a single chip. It is difficult to take into account the high degree of automation of biochemical reactions, high spatial resolution, large sample processing throughput, and wide capture range.
此外,市面上现有的空间组学配套仪器主要集中于多重染色,或染色后的成像,或两者结合,这些仪器只能处理25mm*75mm长宽的标准载玻片,不能兼容其它尺寸芯片的自动化控制方法。针对其他非载玻片的平面芯片也不能适配。同时只能挑选感兴趣的区域收集目标物,难以实现产物的大规模全部收集。例如,不能针对厘米级别长宽的平板芯片执行 整体产物收集的功能。In addition, the existing spatial omics instruments on the market mainly focus on multiple staining, or imaging after staining, or a combination of the two. These instruments can only process standard glass slides with a length and width of 25mm*75mm, and are not compatible with the automated control methods of chips of other sizes. They are also not compatible with other flat chips that are not glass slides. At the same time, only the area of interest can be selected to collect the target object, making it difficult to achieve large-scale collection of all products. For example, the function of overall product collection cannot be performed for flat chips with a length and width of centimeters.
另外,发明人发现包括收集样品执行混合测序的方案需要人工耗时挑选感兴趣的区域(ROI),只能以较低通量执行,不能执行多生物芯片、高通量的处理。现有的仪器普遍需要目标载玻片或芯片有额外用于密封和/或夹持的区域,不能同时兼顾芯片的高利用率和试剂耗量最小化。需要人员中途干预。In addition, the inventors found that the scheme including collecting samples for mixed sequencing requires time-consuming manual selection of regions of interest (ROI), which can only be performed at a lower throughput and cannot perform multi-biochip, high-throughput processing. Existing instruments generally require the target slide or chip to have additional areas for sealing and/or clamping, which cannot simultaneously take into account the high utilization rate of the chip and the minimization of reagent consumption. Human intervention is required.
发明内容Summary of the invention
本公开提供一种生物芯片的自动化控制系统,包括:The present disclosure provides an automatic control system for a biochip, comprising:
工作区,包括:至少一个生物芯片反应区,布置有容纳至少一个生物芯片的生物芯片盒,生物芯片盒设有凹形腔,凹形腔被构造成容纳生物芯片;试剂上料区,存放有各种类型的试剂;以及The working area includes: at least one biochip reaction area, in which a biochip box for accommodating at least one biochip is arranged, the biochip box is provided with a concave cavity, and the concave cavity is configured to accommodate the biochip; a reagent loading area, in which various types of reagents are stored; and
移液机构,被构造成在工作区所在的平面上可运动以及与该平面垂直的方向上可升降,以便到达试剂上料区抽吸试剂并将试剂加到生物芯片上。The liquid transfer mechanism is constructed to be movable on the plane where the working area is located and to be able to rise and fall in a direction perpendicular to the plane so as to reach the reagent loading area to suck the reagent and add the reagent to the biochip.
在一些实施例中,生物芯片的自动化控制系统包括以下至少一个:In some embodiments, the automated control system of the biochip includes at least one of the following:
移液枪头上料区,存放有移液枪头;The pipette tip loading area is used to store the pipette tips;
产物收集区,用于收集凹形腔中的产物;A product collection area, used for collecting the product in the concave cavity;
生物芯片上料区,存放有容纳至少一个生物芯片的生物芯片盒;A biochip loading area storing a biochip box containing at least one biochip;
生物芯片下料区,在该区域生物芯片盒被拿走;the biochip unloading area, where biochip cassettes are removed;
移液枪头丢弃区,在该区域使用过的移液枪头被丢弃;a pipette tip discard area, where used pipette tips are discarded;
密封盖板区,存放有被构造成密封生物芯片盒、试剂上料区和/或产物收集区的密封盖板;A sealing cover plate area storing sealing cover plates configured to seal a biochip box, a reagent loading area and/or a product collection area;
扫码区,在该区域分别对生物芯片盒和容纳在其中的生物芯片扫码;A code scanning area, in which the biochip box and the biochip contained therein are scanned respectively;
产物储存区,用于储存收集的产物;A product storage area for storing collected products;
盖子,可开合地设置在生物芯片反应区以封闭生物芯片盒;以及A cover, which is openably disposed in the biochip reaction area to seal the biochip box; and
温控盖板区,存放温控盖板,温控盖板被构造盖住试剂上料区、产物收集区、生物芯片反应区。The temperature control cover area is used to store the temperature control cover. The temperature control cover is constructed to cover the reagent loading area, the product collection area, and the biochip reaction area.
在一些实施例中,生物芯片的自动化控制系统包括以下至少一个:In some embodiments, the automated control system of the biochip includes at least one of the following:
在试剂上料区上的低温试剂上料区和常温试剂上料区,低温试剂上料区的温度低于常温试剂上料区的温度;A low-temperature reagent loading zone and a normal-temperature reagent loading zone on the reagent loading zone, wherein the temperature of the low-temperature reagent loading zone is lower than the temperature of the normal-temperature reagent loading zone;
温控区,包括低温试剂上料区、产物储存区和/或至少一个生物芯片反应区,温控区的温度可被调控;A temperature control zone, including a low-temperature reagent loading zone, a product storage zone and/or at least one biochip reaction zone, wherein the temperature of the temperature control zone can be controlled;
具有加热功能的盖子。Heated lid.
在一些实施例中,凹形腔包括底面和周向壁,底面被构造成在其上放置生物芯片,在周向壁上设有槽部,槽部被构造与周向壁的其他部分相比更远离底面,以方便移液机构从凹形腔中抽取产物。In some embodiments, the concave cavity includes a bottom surface and a circumferential wall, the bottom surface is configured to place a biochip thereon, and a groove portion is provided on the circumferential wall, the groove portion is configured to be further away from the bottom surface than other portions of the circumferential wall to facilitate the pipetting mechanism to extract the product from the concave cavity.
在一些实施例中,槽部包括弧形段和/或沿凹形腔的周向相交的至少两个斜面段。In some embodiments, the groove portion includes an arc segment and/or at least two inclined surface segments intersecting along the circumference of the concave cavity.
在一些实施例中,沿着凹形腔的周向均匀间隔布置有至少两个槽部。In some embodiments, at least two grooves are evenly spaced apart along the circumference of the concave cavity.
在一些实施例中,产物收集区被构造成能够使生物芯片盒相对于产物收集区所在的平面可倾斜。In some embodiments, the product collection area is configured to enable the biochip cartridge to be tiltable relative to a plane in which the product collection area resides.
在一些实施例中,生物芯片盒的倾斜角度不小于15度。In some embodiments, the biochip box has a tilt angle of no less than 15 degrees.
在一些实施例中,产物收集区包括被构造成使生物芯片盒相对于产物收集区所在的平面可倾斜的倾斜机构。In some embodiments, the product collection area includes a tilt mechanism configured to allow the biochip cartridge to be tilted relative to a plane in which the product collection area is located.
在一些实施例中,倾斜机构包括驱动装置和保持生物芯片盒的托架,托架与驱动装置驱动相连以转动生物芯片盒。In some embodiments, the tilting mechanism includes a driving device and a bracket holding the biochip box, and the bracket is drivingly connected to the driving device to rotate the biochip box.
在一些实施例中,驱动装置包括电机、与电机驱动相连的主动轮和与主动轮驱动相连的从动轮,从动轮与托架相连。In some embodiments, the driving device includes a motor, a driving wheel drivingly connected to the motor, and a driven wheel drivingly connected to the driving wheel, and the driven wheel is connected to the bracket.
在一些实施例中,生物芯片的自动化控制系统包括:In some embodiments, the automated control system of the biochip includes:
抓取机构,被构造成抓取生物芯片盒在工作区所在的平面上可运动以及与该平面垂直的方向上可升降,以便抓取生物芯片盒并将其送到扫码区、试剂上料区、芯片上料区、芯片下料区生物芯片反应区和产物收集区中的至少一个。The grabbing mechanism is constructed to grab the biochip box and move it on the plane where the working area is located and to be able to rise and fall in a direction perpendicular to the plane, so as to grab the biochip box and send it to at least one of the code scanning area, reagent loading area, chip loading area, chip unloading area, biochip reaction area and product collection area.
在一些实施例中,生物芯片的自动化控制系统包括:In some embodiments, the automated control system of the biochip includes:
抽废液机构,包括构造成能够抽取生物芯片上反应的废液的抽废液部件,抽废液部件在工作区所在的平面上可运动以及与该平面垂直的方向上可升降,以便到达至少一个生物芯片反应区从生物芯片盒中抽吸废液并将废液排掉。The waste liquid extraction mechanism includes a waste liquid extraction component that is configured to extract waste liquid from the reaction on the biochip. The waste liquid extraction component can move on the plane where the working area is located and can be raised and lowered in a direction perpendicular to the plane so as to reach at least one biochip reaction area to extract waste liquid from the biochip box and discharge the waste liquid.
在一些实施例中,抽废液机构包括抽吸泵,抽吸泵与抽废液部件相连通,抽吸泵包括以下中的至少一个:空气泵、隔膜泵和柱塞泵;和/或抽废液部件包括针状件或移液枪头。In some embodiments, the waste liquid extraction mechanism includes a suction pump, which is connected to the waste liquid extraction component, and the suction pump includes at least one of the following: an air pump, a diaphragm pump and a plunger pump; and/or the waste liquid extraction component includes a needle or a pipette tip.
在一些实施例中,生物芯片的自动化控制系统包括清洗区,用于抽废液机构在其上排放废液、对抽废液机构清洗和/或排放来自温控区的冷凝水。In some embodiments, the automated control system of the biochip includes a cleaning area for the waste liquid extraction mechanism to discharge waste liquid thereon, to clean the waste liquid extraction mechanism and/or to discharge condensed water from the temperature control area.
在一些实施例中,生物芯片的自动化控制系统包括:In some embodiments, the automated control system of the biochip includes:
负压吸附部件,被构造成用来吸附生物芯片并且在工作区所在的平面上可运动以及与该平面垂直的方向上可升降,以便到达扫码区、生物芯片上料区和/或生物芯片下料区。The negative pressure adsorption component is configured to adsorb the biochip and is movable on the plane where the working area is located and can be raised and lowered in a direction perpendicular to the plane so as to reach the code scanning area, the biochip loading area and/or the biochip unloading area.
在一些实施例中,移液机构被构造成可移动达到试剂上料区、移液枪头上料区和至少 一个生物芯片反应区,使得移液机构能够运动到移液枪头上料区扎取移液枪头,运动到试剂上料区抽吸试剂,运动到多个生物芯片反应区并将抽吸的试剂添加到生物芯片上。In some embodiments, the pipetting mechanism is configured to be movable to reach the reagent loading area, the pipette tip loading area and at least one biochip reaction area, so that the pipetting mechanism can move to the pipette tip loading area to pierce the pipette tip, move to the reagent loading area to aspirate the reagent, move to multiple biochip reaction areas and add the aspirated reagent to the biochip.
在一些实施例中,低温试剂上料区的温度不高于4摄氏度。In some embodiments, the temperature of the low temperature reagent loading zone is no higher than 4 degrees Celsius.
在一些实施例中,移液枪头上料区被构造成至少两组可推拉式容器,每组容器包括多盒移液枪头。In some embodiments, the pipette tip loading area is configured into at least two groups of push-pull containers, each group of containers including multiple boxes of pipette tips.
在一些实施例中,移液机构包括多个移液器,每个移液器能独立地升降和更换移液枪头。In some embodiments, the pipetting mechanism includes a plurality of pipettes, each of which can independently raise and lower and replace a pipette tip.
在一些实施例中,每个移液器沿工作区的长度或宽度方向上排列,每个移液器可等距彼此远离或靠近。In some embodiments, each pipette is arranged along the length or width direction of the working area, and each pipette can be equidistant from or equidistant from each other.
在一些实施例中,移液机构包括能够带着移液机构运动的第一移动机构,抽废液机构包括能够带着抽废液部件运动的第二移动机构,第一移动机构和第二移动机构是彼此独立的或集成在一起的。In some embodiments, the pipetting mechanism includes a first moving mechanism capable of moving the pipetting mechanism, and the waste liquid extraction mechanism includes a second moving mechanism capable of moving the waste liquid extraction component, and the first moving mechanism and the second moving mechanism are independent of each other or integrated together.
在一些实施例中,第一移动机构和第二移动机构均包括臂架,臂架能够在工作区的所在平面上移动以及与该平面垂直的方向上升降。In some embodiments, the first moving mechanism and the second moving mechanism both include an arm, and the arm can move on the plane where the working area is located and rise and fall in a direction perpendicular to the plane.
在一些实施例中,抓取机构包括夹爪。In some embodiments, the gripping mechanism includes a clamping jaw.
在一些实施例中,生物芯片盒设有多个凹形腔,多个凹形腔被布置为至少一排。In some embodiments, the biochip cartridge is provided with a plurality of concave cavities, and the plurality of concave cavities are arranged in at least one row.
在一些实施例中,至少生物芯片反应区包括多个生物芯片反应区,多个生物芯片反应区的温度是彼此独立地控制的。In some embodiments, at least the biochip reaction area includes a plurality of biochip reaction areas, and the temperatures of the plurality of biochip reaction areas are controlled independently of each other.
在一些实施例中,抓取机构被构造成能够执行以下步骤之一以确认生物芯片和生物芯片盒的对应关联是否准确:In some embodiments, the gripping mechanism is configured to perform one of the following steps to confirm whether the corresponding association between the biochip and the biochip box is accurate:
当生物芯片盒的底部是透明的,抓取机构抓取容纳有生物芯片的生物芯片盒在扫码区分别对生物芯片和生物芯片盒扫码;When the bottom of the biochip box is transparent, the grabbing mechanism grabs the biochip box containing the biochip and scans the biochip and the biochip box in the code scanning area respectively;
当生物芯片盒的底部是不透明的,抓取机构在芯片下料区抓取生物芯片盒扫码,并且负压吸附部件逐一吸附各生物芯片来扫码。When the bottom of the biochip box is opaque, the gripping mechanism grabs the biochip box in the chip unloading area to scan the code, and the negative pressure adsorption component adsorbs each biochip one by one to scan the code.
在一些实施例中,生物芯片的自动化控制系统包括放置在凹形腔中的生物芯片,凹形腔的底面面积大于生物芯片的面积,使得在凹形腔的周向壁与生物芯片之间形成间隙。In some embodiments, an automated control system for a biochip includes a biochip placed in a concave cavity, wherein the bottom area of the concave cavity is larger than the area of the biochip, so that a gap is formed between the circumferential wall of the concave cavity and the biochip.
本公开还提供一种生物芯片的自动化控制系统的自动化控制方法,将生物芯片的自动化控制系统用于转录组的捕获和产物收集,实现转录组捕获和产物收集包括以下操作步骤中的至少一个:The present disclosure also provides an automated control method for an automated control system of a biochip, wherein the automated control system of the biochip is used for capturing transcriptomes and collecting products, and the capturing of transcriptomes and collecting products includes at least one of the following operation steps:
孵育:通过移液机构吸取孵育试剂,再由移液机构向生物芯片加入孵育试剂,执行孵育后再由抽废液机构将废液抽走;Incubation: The incubation reagent is sucked by the pipetting mechanism, and then the incubation reagent is added to the biochip by the pipetting mechanism. After the incubation, the waste liquid is pumped away by the waste liquid pumping mechanism;
组织透化:通过移液机构吸取透化试剂,再由移液机构向生物芯片加入透化试剂,透化完成后再由抽废液机构将废液抽走;Tissue permeabilization: The permeabilization reagent is sucked by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the permeabilization is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
反转录:通过移液机构吸取反转录试剂,再由移液机构向生物芯片加入反转录试剂,反转录完成后再由抽废液机构将废液抽走;Reverse transcription: The reverse transcription reagent is sucked up by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the reverse transcription is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
组织去除:通过移液机构吸取组织去除试剂,再由移液机构携带已吸取组织去除试剂的移液枪头向生物芯片加入组织去除试剂,组织去除完成后再由抽废液机构将废液抽走;Tissue removal: The tissue removal reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the tissue removal reagent to add the tissue removal reagent to the biochip. After the tissue removal is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
核酸释放:通过移液机构吸取核酸释放试剂,再由移液机构携带已吸取核酸释放试剂的移液枪头向生物芯片加入核酸释放试剂并完成核酸释放;Nucleic acid release: The nucleic acid release reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the nucleic acid release reagent to add the nucleic acid release reagent to the biochip to complete the nucleic acid release;
产物收集:通过移液机构吸取释放的核酸,并保存释放的核酸。Product collection: The released nucleic acid is sucked up by a pipetting mechanism and the released nucleic acid is stored.
在一些实施例中,在孵育步骤和组织透化步骤之间执行清洗和/或在组织透化步骤和反转录步骤之间执行清洗和/或在反转录步骤和组织去除步骤之间执行清洗和/或在组织去除步骤和核酸释放步骤之间执行清洗。In some embodiments, a wash is performed between the incubation step and the tissue permeabilization step and/or a wash is performed between the tissue permeabilization step and the reverse transcription step and/or a wash is performed between the reverse transcription step and the tissue removal step and/or a wash is performed between the tissue removal step and the nucleic acid release step.
在一些实施例中,清洗步骤为:通过移液机构吸取清洗试剂,再由移液机构携带已吸取清洗试剂的移液枪头向生物芯片加入清洗试剂,再由抽废液部件将废液抽走。In some embodiments, the cleaning step is: aspirating the cleaning reagent through the pipetting mechanism, then using the pipetting mechanism to carry the pipette tip that has absorbed the cleaning reagent to add the cleaning reagent to the biochip, and then using the waste liquid extraction component to extract the waste liquid.
本公开提供一种生物芯片的自动化控制系统的自动化控制方法,将生物芯片的自动化控制系统用于蛋白质组的标记和捕获以及产物收集,实现蛋白质组的标记和捕获以及产物收集包括以下操作步骤中的至少一个:The present disclosure provides an automated control method for an automated control system of a biochip, wherein the automated control system of the biochip is used for labeling and capturing a proteome and collecting a product, and implementing labeling and capturing a proteome and collecting a product includes at least one of the following operation steps:
封闭:通过移液机构吸取封闭液,再由移液机构携带已吸取封闭液的移液枪头向生物芯片加入封闭液,封闭完成后再由抽废液机构将废液抽走;Blocking: The blocking solution is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the blocking solution to add the blocking solution to the biochip. After the blocking is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
抗体孵育:通过移液机构吸取抗体试剂,再由移液机构携带已吸取抗体试剂的移液枪头向生物芯片加入抗体试剂,孵育完成后再由抽废液机构将废液抽走;Antibody incubation: The antibody reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip with the antibody reagent sucked to add the antibody reagent to the biochip. After the incubation is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
干燥:将抽走废液后的生物芯片在生物芯片反应区中执行干燥;Drying: Drying the biochip in the biochip reaction area after the waste liquid is removed;
组织透化:通过移液机构吸取透化试剂,再由移液机构向生物芯片加入透化试剂,透化完成后再由抽废液机构将废液抽走;Tissue permeabilization: The permeabilization reagent is sucked by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the permeabilization is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
反转录:通过移液机构吸取反转录试剂,再由移液机构向生物芯片加入反转录试剂,反转录完成后再由抽废液机构将废液抽走;Reverse transcription: The reverse transcription reagent is sucked up by the pipetting mechanism, and then added to the biochip by the pipetting mechanism. After the reverse transcription is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
组织去除:通过移液机构吸取组织去除试剂,再由移液机构携带已吸取组织去除试剂的移液枪头向生物芯片加入组织去除试剂,组织去除完成后再由抽废液机构将废液抽走;Tissue removal: The tissue removal reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the tissue removal reagent to add the tissue removal reagent to the biochip. After the tissue removal is completed, the waste liquid is sucked away by the waste liquid extraction mechanism;
核酸释放:通过移液机构吸取核酸释放试剂,再由移液机构携带已吸取核酸释放试剂的移液枪头向生物芯片加入核酸释放试剂并完成核酸释放;Nucleic acid release: The nucleic acid release reagent is sucked by the pipetting mechanism, and then the pipetting mechanism carries the pipette tip that has sucked the nucleic acid release reagent to add the nucleic acid release reagent to the biochip to complete the nucleic acid release;
产物收集:通过移液机构吸取释放的核酸,并保存释放的核酸。Product collection: The released nucleic acid is sucked up by a pipetting mechanism and the released nucleic acid is stored.
在一些实施例中,在封闭步骤和抗体孵育步骤之间执行清洗和/或在抗体孵育步骤和干燥步骤之间执行清洗和/或在干燥步骤和组织透化步骤之间执行清洗和/或在组织透化步骤和反转录步骤之间执行清洗和/或在反转录步骤和组织去除步骤之间执行清洗和/或在组织去除步骤和核酸释放步骤之间执行清洗。In some embodiments, washing is performed between the blocking step and the antibody incubation step and/or washing is performed between the antibody incubation step and the drying step and/or washing is performed between the drying step and the tissue permeabilization step and/or washing is performed between the tissue permeabilization step and the reverse transcription step and/or washing is performed between the reverse transcription step and the tissue removal step and/or washing is performed between the tissue removal step and the nucleic acid release step.
在一些实施例中,清洗步骤包括:通过移液机构吸取清洗试剂,再由移液机构携带已吸取清洗试剂的移液枪头向生物芯片加入清洗试剂,再由抽废液部件将废液抽走。In some embodiments, the cleaning step includes: sucking the cleaning reagent through the pipetting mechanism, then using the pipetting mechanism to carry the pipette tip that has sucked the cleaning reagent to add the cleaning reagent to the biochip, and then using the waste liquid extraction component to extract the waste liquid.
本公开所提供的生物芯片的自动化控制系统及其应用可以实现对多张芯片可扩展的自动化调度与控制,实现对组织内生物信息的标记和捕获,并实现完成捕获产物的收集功能,能够适用转录组、蛋白组、免疫组等多组学的分析。本公开所提供的方法和系统满足多生物芯片、高利用率、高通量、高自动化程度的处理要求。The automated control system of the biochip provided by the present disclosure and its application can realize the scalable automated scheduling and control of multiple chips, realize the labeling and capture of biological information in the tissue, and realize the collection function of the captured products, and can be applied to the analysis of multiple omics such as transcriptome, proteome, and immunology. The method and system provided by the present disclosure meet the processing requirements of multiple biochips, high utilization, high throughput, and high automation.
图1为本公开的生物芯片的自动化控制系统的整体示意图;FIG1 is an overall schematic diagram of an automated control system of a biochip disclosed herein;
图2为本公开的生物芯片的自动化控制系统的工作区的布局示意图;FIG2 is a schematic diagram of the layout of the working area of the automatic control system of the biochip disclosed in the present invention;
图3为本公开的生物芯片的自动化控制系统的操作臂系统示意图;FIG3 is a schematic diagram of a manipulator system of an automated control system for a biochip disclosed herein;
图4为移液机构的示意图;FIG4 is a schematic diagram of a pipetting mechanism;
图5为移液机构的抽废液机构和抓取机构的示意图;FIG5 is a schematic diagram of a waste liquid extraction mechanism and a grasping mechanism of a liquid transfer mechanism;
图6为本公开的生物芯片的自动化控制系统的芯片上料区414、芯片下料区416和生物芯片盒的示意图;FIG6 is a schematic diagram of a
图7为本公开的生物芯片的自动化控制系统的密封盖板区410的示意图;FIG. 7 is a schematic diagram of a sealing
图8为本公开的生物芯片的自动化控制系统的产物收集区408的倾斜机构4081的示意图;FIG8 is a schematic diagram of a
图9为本公开的容纳有生物芯片7的生物芯片盒6的示意图;FIG9 is a schematic diagram of a
图10为应用本公开的生物芯片的自动化控制系统执行转录组捕获和收集的流程图;FIG10 is a flow chart of performing transcriptome capture and collection using the automated control system of the biochip disclosed herein;
图11为应用本公开的生物芯片的自动化控制系统执行蛋白组捕获和收集的流程图。FIG. 11 is a flow chart showing the process of performing proteome capture and collection using the automated control system of the biochip disclosed herein.
附图标记说明:Description of reference numerals:
1,生物芯片的自动化控制系统;2,外壳,3,操作臂系统;4,工作区;5,指示灯;6,生物芯片盒;7,生物芯片;61,凹形腔;612,凹形腔底面;613,凹形腔周向壁;611,槽部;6111,第一斜面段;6112,第二斜面段;401,工作平台;402,抽拉式容器,403,移液枪头上料区,404,传感器;405,移液枪头丢弃区;406,生物芯片反应区;4061,盖子;407,清洗区,408,产物收集区;4081,倾斜机构;40811,电机;40812,托架; 40814,主动轮;40815,从动轮;409,常温试剂上料区;410,密封盖板区;4101,密封盖板;4102,多层叠置架;411,温控盖板区;4111,温控盖板;412,产物储存区;413,低温试剂上料区;414,芯片上料区;4141,多层叠置架;415,扫码区,416,芯片下料区;301,支架,302,移液机构,303,抓取机构,304,抽废液机构;306,负压吸附部件;3051,第一移动机构;3052,第二移动机构;3021,移液枪头;3022,移液器;3031,夹爪;3041,抽废液部件。1. Automatic control system of biochip; 2. Shell; 3. Manipulator system; 4. Working area; 5. Indicator light; 6. Biochip box; 7. Biochip; 61. Concave cavity; 612. Bottom of concave cavity; 613. Peripheral wall of concave cavity; 611. Groove; 6111. First slope section; 6112. Second slope section; 401. Working platform; 402. Pull-out container; 403. Pipette tip loading area; 404. Sensor; 405. Pipette tip discarding area; 406. Biochip reaction area; 4061. Cover; 407. Cleaning area; 408. Product collection area; 4081. Tilt mechanism; 40811. Motor; 40812. Bracket; 40814, driving wheel; 40815, driven wheel; 409, normal temperature reagent loading area; 410, sealing cover area; 4101, sealing cover; 4102, multi-layer stacking rack; 411, temperature control cover area; 4111, temperature control cover; 412, product storage area; 413, low temperature reagent loading area; 414, chip loading area; 4141, multi-layer stacking rack; 415, code scanning area, 416, chip unloading area; 301, bracket, 302, pipetting mechanism, 303, grabbing mechanism, 304, waste liquid extraction mechanism; 306, negative pressure adsorption component; 3051, first moving mechanism; 3052, second moving mechanism; 3021, pipetting gun tip; 3022, pipette; 3031, clamp; 3041, waste liquid extraction component.
下面结合具体实施方式对本公开执行进一步的详细描述,给出的实施例仅为了阐明本公开,而不是为了限制本公开的范围。The present disclosure is further described in detail below in conjunction with specific implementation modes. The examples given are only for illustrating the present disclosure but not for limiting the scope of the present disclosure.
如图1所示,本公开的自动化控制系统1包括外壳2、操作臂系统3、工作区4、指示灯5。工作区4上布置有芯片生化实验的多个工位和装置,操作臂系统3用于根据指令在工作区4自动操作各生化实验的步骤。指示灯5用来告知用户目前自动化控制系统1是否处于工作状态、停机状态、正常工作状态、非正常工作状态等。As shown in FIG1 , the automatic control system 1 of the present disclosure includes a housing 2, an
在一些实施例中,如图2所示,工作区4包括工作平台401,在工作平台401上设有:移液枪头上料区403、芯片上料区414、芯片下料区416、密封盖板区410、温控盖板区411、低温试剂上料区413、常温试剂上料区409、试剂温浴区(可选)、生物芯片反应区406、移液枪头丢弃区405、清洗区407、扫码区415、产物收集区408和产物储存区412等,移液枪头3021可以选用一次性移液枪头。In some embodiments, as shown in Figure 2, the working
本公开通过操作臂系统3在工作区4的工作平台401上精确控制移液机构抽取/添加液体和抽废液机构304抽取废液,实现了清洗、组织透化、反转录、组织去除、核酸释放和产物收集等全自动操作。The present invention uses the
在一些实施例中,如图3和4所示,操作臂系统3包括支架301、移液机构302、抓取机构303、抽废液机构304、负压吸附部件306及其在XYZ轴方向上的移动机构(X为工作区的水平长边方向,Y为水平短边方向,Z为垂直高度方向)。支架301将操作臂系统3支撑在工作平台401上,移液机构302包括四通道可变距的移液器3022,每个移液器3022可独立控制升降和更换移液枪头3021,具备空吸检测、堵针探测功能,具备液面探测功能,可独立控制在工作平台所在平面上的移动和沿着Z轴动作随动吸吐液,四通道移液器3022沿Y轴方向排列,可以在XY轴方向实现同步移动和Y轴方向各通道等距开合可调间距移动。所有移液器3022能够覆盖移液枪头上料区403、生物芯片反应区406、产物储存区412、常温试剂上料区409、低温试剂上料区413、移液枪头丢弃区405等。In some embodiments, as shown in FIGS. 3 and 4 , the
在一些实施例中,如图5所示,抓取机构303可以包括夹爪3031,并且可以是自动控制的,开合范围适配标准孔板,夹取目标包括生物芯片盒6、密封盖板4101和温控盖板4111等,具备到位判断功能,且行程覆盖芯片上料区414、芯片下料区416、扫码区415、密封盖板区410、温控盖板区411、产物收集区408、产物储存区412、低温试剂上料区413、生物芯片反应区406等。具体地,夹爪3031夹取生物芯片盒6至生物芯片反应区406进行生化反应,夹取温控盖板4111对产物储存区412、低温试剂上料区413和/或生物芯片反应区406进行封盖。In some embodiments, as shown in FIG5 , the
在一些实施例中,抓取机构303可以在电机或传动机构的控制下执行旋转调节以更好地将抓取物放置到工作区4。In some embodiments, the
在一个实施例中,如图2所示,可选地,温控盖板4111具有加热功能,可以被夹爪3031从温控盖板区411的多层叠置架上抓起和运送,以例如盖在密封生物芯片盒6上的密封盖板4101上,也可以直接盖在生物芯片盒6上,由此温控盖板4101对生物芯片盒6的顶部区域进行加热,减少了在生物芯片盒6内由于生物芯片盒6的顶部区域与由温控区加热的生物芯片盒6的底部区域之间的温差而产生的冷凝水。温控盖板区411的多层叠置架每层可以放置一个温控盖板4111,多层叠置架与图6和图7所示的多层叠置架4141和4102相同。In one embodiment, as shown in FIG2 , the temperature
在一些实施例中,如图5所示,抽废液机构304包括抽废液部件3041、抽吸泵、连接管路和固定件,抽废液部件3041通过管路与抽吸泵连接,具备独立的XYZ轴向运动控制,管路能够跟随抽废液部件3041运动且不干涉。抽吸泵为例如空气泵、隔膜泵或柱塞泵。抽废液部件3041的移动范围覆盖清洗区407、生物芯片反应区406,抽废液部件3041可以为针状件。In some embodiments, as shown in FIG5 , the waste
在一些实施例中,负压吸附部件306用于吸附芯片,例如执行芯片扫码。其中各负压吸附部件306沿Y轴方向排列且在Z轴方向能独立运动。负压吸附部件306沿X、Y、Z轴方向移动过程中,管路能跟随移动,并且行程覆盖芯片下料区416、扫码区415。负压吸附部件306可以为真空吸盘。如图5所示,负压吸附部件306与抽废液部件3041集成一起,也可以与抽废液部件3041分别独立地设置。In some embodiments, the negative
在一些实施例中,生物芯片反应区406包括盖子4061,盖子4061以可开合的方式设置于生物芯片反应区406,用于封闭生物芯片盒6。可选地,盖子4061带有加热功能,可在25-100℃范围内单独控制升降温,用于对生物芯片盒6和/或密封盖板4101进行加热,减少因温差而产生冷凝水。In some embodiments, the
在一些实施例中,温控区包括两个低温区和三个生物芯片反应区406,两个低温区分 别为低温试剂上料区413和产物储存区412,可在0-25℃范围内设置恒定温度并且低温下产生的冷凝水有管路接出排放。三个生物芯片反应区406可以在生物芯片反应时执行升降温,可在25~70℃范围内精确独立控制各自的温度,最高控制温度高于90℃,盖子4061配合密封盖板4101密封生物芯片盒6,具体地,盖子4061与密封盖板4101接触传热,避免密封盖板4101的下表面产生冷凝水,有效降低了蒸发量,保证生化反应的正常进行。。In some embodiments, the temperature control area includes two low temperature areas and three
在一些实施例中,抽废液机构304、冷凝水收集区、泵、开关和旋转阀的控制可以实现在清洗区407执行抽废液机构304清洗和低温区的冷凝水排放功能。In some embodiments, the control of the waste
在一些实施例中,在产物收集区408被构造成具有可倾斜功能,以调整其上的生物芯片盒6相对于工作区4所在平面的角度,用于收集核酸时倾斜生物芯片盒6,有利于减少残液。In some embodiments, the
在一些实施例中,如图8所示,在产物收集区408上设有倾斜机构4081,倾斜机构4081包括驱动装置和保持生物芯片盒6的托架40812,驱动装置与托架40812驱动相连以转动生物芯片盒6,使得芯片盒6倾斜。In some embodiments, as shown in FIG8 , a
在一些实施例中,如图8所示,驱动装置包括电机40811、与电机40811驱动相连的主动轮40814、通过皮带40816与主动轮40814驱动相连的从动轮40815,从动轮40815与托架40812相连接,当电机40816通过主动轮40814、皮带40816和从动轮40815驱动托架40812转动时,生物芯片盒6随着托架40812在一定角度范围内往复转动,该角度范围确保所述生物芯片盒6的倾斜角度不小于15度,并且同时确保电机没有漏液风险,可以容许夹爪3031夹取生物芯片盒6在托架40812和其他工位之间转移。驱动装置还可以采用齿轮传动、链条传动等方式来驱动托架40812转动。In some embodiments, as shown in FIG8 , the driving device includes a
在一些实施例中,如图8所示,生物芯片盒6设有多个凹形腔61,生物芯片容纳在凹形腔61内。凹形腔61包括底面612和周向壁613,生物芯片放置在底面612上,在周向壁613上设有槽部611,所述槽部611的形状被设计成方便移液机构302从凹形腔61中抽取产物,与周向壁613的除了槽部611之外的其他部分相比,槽部611更远离底面612或者生物芯片,这样方便移液机构302从凹形腔61中抽取产物。In some embodiments, as shown in FIG8 , the
在一些实施例中,如图9所示,生物芯片7放置在生物芯片盒6的凹形腔61中。在图中仅示出放置一排生物芯片7,生物芯片7的面积小于底面612的面积,使得沿着凹形腔61的底面612周向上在生物芯片7和周向壁613之间有间隙,使得在生物芯片盒6倾斜时该间隙形成产物流动的通道,以使产物从高侧流向低侧。In some embodiments, as shown in Fig. 9, the
在一些实施例中,如图9所示,槽部611包括周向壁613周向相交的第一斜面段6111和第二斜面段6112。在一些实施例中,斜面段的数量可以大于两个。在一些实施例中,除 了斜面段之外,槽部611还可以包括弧形段,例如圆弧形。In some embodiments, as shown in FIG9 , the
在一些实施例中,沿着凹形腔61的周向均匀间隔布置至少两个槽部61。如图8所示,沿着凹形腔61的周向均匀间隔布置至少两个槽部61,这样方便移液机构302从不同方向抽取产物。In some embodiments, at least two
在一些实施例中,低温试剂上料区413和常温试剂上料区409用于不同温度条件下试剂的存放。其中低温试剂上料适用于在低于室温的温度(例如4℃左右)较稳定的试剂存放,结合温控低温区域对温度执行控制,常温试剂上料区409适用于室温较稳定的试剂存放。In some embodiments, the low temperature
在一些实施例中,移液枪头上料区403以例如4盒为一组,可以分多组(例如两组)分别放置在抽屉式容器中可整体推拉进出工作区4,两组枪头盒抽屉、芯片上料区414、芯片下料区416、密封盖板区410、温控盖板区411都有传感器可检测是否到位。扫码区415可以设有多个扫码器,可实现包括容器侧面和芯片底部两种形式的扫码功能。In some embodiments, the pipette
在一些实施例中,通过在第二移动机构3052的夹爪3031移取生物芯片盒6,实现转移生物芯片盒6而不对生物芯片造成损伤;通过夹爪3031抓取密封盖板4101,实现对生物芯片盒6的密封。如图7所示,在密封盖板区410中,多个密封盖板4101放置在多层叠置架4102中,多层叠置架4102的每层放置一个密封盖板4101,使得多个密封盖板4101上下叠置在多层叠置架4102中,这样方便从上到下依次拿取多个密封盖板4101。In some embodiments, the
在一些实施例中,低温试剂上料区413、产物收集区408均恒温控制,实现对试剂的冷藏和产物的保存;生物芯片反应区406采用变温控制,提高工作效率;结构设计考虑用户操作的便捷,方便更换耗材、试剂,同时也为潜在的应用拓展预留试剂空间。在工作区4内无需单独对单个活性生物芯片执行转移,不用在生物芯片上预留额外空间,确保了生物芯片的最大利用面积,生物芯片置于生物芯片盒6内,单个生物芯片盒6可容纳多张(例如8张)芯片,工作区4可容纳多个(例如3个)生物芯片反应区406,每个生物芯片反应区406内的反应温度可独立控制,单张芯片可以实现精确移液控制,从而实现通量最大化。In some embodiments, the low-temperature
在一些实施例中,如图6所示,生物芯片盒6包括用于容纳多个生物芯片(例如8张10mm*10mm)的多个凹形腔61,每四个凹形腔61为一列,通过扫码将芯片背面编码和生物芯片盒二维码对应地关联,而后将整个生物芯片盒手动放置到芯片上料区414,通过识别生物芯片盒6侧面二维码将生物芯片盒6连同芯片编号录入系统。生物芯片盒6外形满足能被抓取机构的夹爪3031所夹取。如图6所示,在芯片上料区414和芯片下料区416中,多个生物芯片盒6放置在多层叠置架4141中,多层叠置架4141的每层放置一个生物 芯片盒6,使得多个生物芯片盒6上下叠置在多层叠置架4141中,这样方便从上到下依次拿取多个生物芯片盒6。In some embodiments, as shown in FIG6 , the
在一些实施例中,通过扫码将生物芯片和生物芯片盒6第一次对应地彼此关联可以通过扫码例如人工扫码将芯片和生物芯片盒对应关联之后送到芯片上料区414来实现。In some embodiments, the first corresponding association of the biochip and the
在一些实例中,通过扫码来确认芯片和生物芯片盒的对应关联是否准确通过以下方式之一来确认彼此关联是否准确:In some examples, the corresponding association between the chip and the biochip box is confirmed by scanning the code. The corresponding association is confirmed by one of the following methods:
(1)对于底部透明的生物芯片盒6,通过抓取机构303抓取容纳有生物芯片的生物芯片盒6在扫码区415对生物芯片和生物芯片盒分别扫码;(1) For a
(2)对于底部不透明的生物芯片盒6,在芯片下料区416取走生物芯片盒6时,通过分别对生物芯片盒6以及用负压吸附部件30逐一吸附各生物芯片来扫码。(2) For a
根据本公开的生物芯片的自动化控制系统,可以提供以下技术优点中的至少一个:The automated control system of the biochip according to the present disclosure can provide at least one of the following technical advantages:
完成不同组学应用的自动化标记和捕获流程;Complete automated labeling and capture processes for different omics applications;
提高对捕获产物的收集率;Improve the collection rate of captured products;
同时处理多个全芯片样本,单日处理通量大;Process multiple full-chip samples simultaneously, with high throughput per day;
不触碰活性芯片表面,芯片利用率百分之百;以及No touching of active chip surface, 100% chip utilization; and
自动化程度高,中途无需人工干预。The automation level is high and no human intervention is required.
在一些实施例中,如图10所示,提供了一种应用生物芯片的自动化控制系统实现转录组捕获和产物收集。In some embodiments, as shown in FIG. 10 , an automated control system using a biochip is provided to achieve transcriptome capture and product collection.
生物芯片经过组织贴片前处理后进入生物芯片盒6,单个生物芯片盒6包括容纳8张芯片的8个凹形腔61,通过扫码将每张芯片背面的编码与生物芯片盒6的二维码对应地关联,而后将整个生物芯片盒6手动放置到芯片上料区414,夹爪3031移取生物芯片盒6到扫码区415扫码识别生物芯片盒6侧面的二维码,将生物芯片盒6和相应芯片的编号一同录入系统。After tissue patch pre-treatment, the biochip enters the
手动将配制好的低温试剂和常温试剂分别放置到对应的低温试剂上料区413和常温试剂上料区409,并装载好移液枪头3021、密封盖板4101和温控盖板4111。软件根据传感器404感应的到位信号,提示确认耗材和芯片状态。人工在软件内设置和确定不同芯片对应的实验条件后点击运行,夹爪3031将生物芯片盒6从芯片上料区414转移到生物芯片反应区406,执行如下步骤中的全部或者部分,如图10所示。Manually place the prepared low-temperature reagents and room-temperature reagents in the corresponding low-temperature
清洗步骤:控制移液器3022运动到移液枪头上料区403,扎取移液枪头3021,运行到试剂上料区中的清洗试剂对应的位置,沿Z轴下降执行移液器3022的液面探测功能,成功后吸取设定体积的清洗试剂,随后移液器3022运行到生物芯片反应区406,并在生物 芯片盒6的对应凹形腔61处沿Z轴下降到一定高度,精确吐液。Cleaning steps: control the
抽废液步骤:控制夹爪3031转移生物芯片盒6上的密封盖板到密封盖板区410,抽废液部件3041运行到生物芯片盒6的对应凹形腔61,沿Z轴下降并控制废液泵,将废液泵的阀开启3-10s,沿Z轴上抬并运行到清洗区407,开启清洗泵注水清洗抽废液部件3041的外壁,并开启废液泵抽水清洗抽废液部件3041的内壁。Waste liquid extraction step: control the
组织透化步骤:控制移液器3022取移液枪头3021并抽取透化试剂,4张芯片为一组同时加入透化试剂,软件记录加入透化试剂的精确时间并开始计时。根据透化时间差异,在透化时间结束前移液器抽取透化终止试剂,在精确的时间点加入到生物芯片盒6的凹形腔61,终止透化反应;或者在规定的透化时间抽走反应废液,并快速加入清洗试剂,再抽走废液。整个移液过程控制在3分钟以内以使相邻组的芯片能够被分别处理。Tissue permeabilization step: control the
反转录:在组织透化结束后清洗完的芯片上加入反转录试剂,在一定温度下(例如42℃)孵育3h以上。如果为了满足不同透化时间的芯片在同一生物芯片盒6内处理而提前加入反转录试剂,那么待该生物芯片盒6内所有凹形腔61都添加完毕后再调节温度到42℃,并在42℃孵育3h以上。Reverse transcription: After tissue permeabilization, add reverse transcription reagent to the cleaned chip and incubate at a certain temperature (e.g., 42°C) for more than 3 hours. If reverse transcription reagent is added in advance to meet the needs of processing chips with different permeabilization times in the
组织移除:在反转录结束后清洗完的芯片上加入组织移除试剂,在55℃孵育10分钟以上。Tissue removal: After reverse transcription, add tissue removal reagent to the washed chip and incubate at 55°C for more than 10 minutes.
核酸释放:在组织移除结束后清洗完的芯片上加入核酸释放试剂,在55℃孵育3h以上。Nucleic acid release: After tissue removal, add nucleic acid release reagent to the cleaned chip and incubate at 55°C for more than 3 hours.
核酸收集:用夹爪3031将完成核酸释放的生物芯片盒6转移到产物收集区408,倾斜20°左右,移液器取移液枪头3021,到产物收集区408上方沿Z轴下降,直至碰到凹形腔61中的产物表面,移液器抽取释放的核酸,并将收集的产物转移到产物储存区412中的孔板内执行保存。更换新的移液枪头3021重新抽取清洗液,并冲洗凹形腔61,并再次收集产物,并将再次收集的产物转移到同一孔板对应的孔中,与前次收集的产物合并。Nucleic acid collection: Use the
多个生物芯片盒6同时运行时,第二个和第三个生物芯片盒6分别会在前一个生物芯片盒6进入到反转录步骤中孵育等待较长时间时,开始对第二个和第三个生物芯片盒6执行清洗步骤,确保在反转录步骤之前的步骤不被打断且透化时间能够被严格控制。When
收集产物收集后将执行后续的建库和测序,以确保得到的包括空间定位序列和捕获产物的核酸能够被读取,并重新定位到原空间结构上,从而执行空间信息的重构和精确定位。After the collection products are collected, subsequent library construction and sequencing will be performed to ensure that the nucleic acids obtained, including the spatial positioning sequences and captured products, can be read and relocated to the original spatial structure, thereby performing reconstruction and precise positioning of spatial information.
在一些实施例中,如图11所示,提供了应用生物芯片的自动化控制系统实现蛋白组的标记和捕获产物收集。In some embodiments, as shown in FIG. 11 , an automated control system using a biochip is provided to achieve protein group labeling and capture product collection.
生物芯片经过组织贴片前处理后进入生物芯片盒6,单个生物芯片盒6包括8张芯片 的凹形腔61,通过扫码将每张芯片背面的编码与生物芯片盒6的二维码对应地关联,而后将整个生物芯片盒6手动放置到芯片上料区414,夹爪3031移取生物芯片盒6到扫码区415扫码识别生物芯片盒6侧面的二维码,将生物芯片盒6和相应芯片的编号一同录入系统。After the tissue patch pre-treatment, the biochip enters the
手动将配制好的蛋白组相关试剂分别放置到对应的试剂上料区,并装载好移液枪头3021、密封盖板4101和温控盖板411。软件根据传感器404感应的到位信号,提示确认耗材和芯片状态。人工在软件内设置和确定不同芯片对应的实验条件后点击运行,夹爪3031将生物芯片盒6从芯片上料区414转移到生物芯片反应区406,开始执行如下步骤中的全部或部分。Manually place the prepared proteome-related reagents in the corresponding reagent loading area, and load the
清洗步骤:控制移液器运动到移液枪头上料区403,扎取移液枪头3021,运行到试剂上料区中的清洗试剂1对应的位置,沿Z轴下降执行移液器的液面探测功能,成功后吸取设定体积的清洗试剂1,随后移液器运行到生物芯片反应区406,并在生物芯片盒6的对应凹形腔61处沿Z轴下降到一定高度,精确吐液。重复清洗3次。Cleaning steps: control the pipette to move to the pipette
抽废液步骤:控制夹爪3031转移生物芯片盒6上的密封盖板到密封盖板区410,抽废液部件3041运行到生物芯片盒6的对应凹形腔61,沿Z轴下降并控制废液泵,将废液泵的阀开启3-10s,沿Z轴上抬并运行到清洗区407,开启清洗泵注水清洗抽废液部件3041的外壁,并开启废液泵抽水清洗抽废液部件3041的内壁。Waste liquid extraction step: control the
封闭:控制移液器运动到移液枪头上料区403,扎取移液枪头3021,运行到试剂上料区中的封闭液对应的位置,沿Z轴下降执行移液器的液面探测功能,成功后吸取设定体积的封闭液,随后移液器运行到生物芯片反应区406,并在生物芯片盒6的对应凹形腔61处沿Z轴下降到一定高度,精确吐液。室温孵育30分钟。Sealing: Control the pipette to move to the pipette
抗体孵育:移除封闭液后,控制移液器运动到移液枪头上料区403,扎取移液枪头3021,运行到试剂上料区中的抗体试剂对应的位置,精确吸取50-100μL提前配好的抗体试剂,随后移液器运行到生物芯片反应区406,并在生物芯片盒6的对应凹形腔61处沿Z轴下降到一定高度,精确吐液,使抗体试剂均匀覆盖芯片表面,控制夹爪3031抓取密封盖板4101密封生物芯片盒6,室温孵育45分钟。Antibody incubation: After removing the blocking solution, control the pipette to move to the pipette
抗体孵育后清洗:控制移液器使用移液枪头3021抽取300μL清洗试剂2,加入到生物芯片盒6的对应凹形腔61,然后执行抽废液操作,重复清洗和抽废液3次以上;再重复前述使用清洗液1的清洗步骤和抽废液步骤。Cleaning after antibody incubation: Control the pipette to use the
干燥:抽废液后的芯片在生物芯片反应区406中在42℃放置10分钟。Drying: After the waste liquid is drawn out, the chip is placed in the
蛋白质组的标记和捕获以及产物收集还包括组织透化、反转录、组织去除、核酸释放、 产物收集等步骤,这些步骤与转录组捕获和产物收集的相应步骤相同。收集的产物将处理用于后续的测序解读,以最终获得带空间定位信息的特定抗体对应的互补蛋白空间分布,从而得到蛋白组的空间定位信息。Proteome labeling and capture and product collection also include tissue permeabilization, reverse transcription, tissue removal, nucleic acid release, product collection and other steps, which are the same as the corresponding steps of transcriptome capture and product collection. The collected products will be processed for subsequent sequencing interpretation to ultimately obtain the spatial distribution of complementary proteins corresponding to specific antibodies with spatial localization information, thereby obtaining the spatial localization information of the proteome.
最后应说明的是:以上实施例仅用以说明本公开的技术方案,而非对其限制;尽管参照前述实施例对本公开执行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案执行修改,或者对其中部分技术特征执行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements on some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119881362A (en) * | 2025-02-27 | 2025-04-25 | 中国科学院武汉病毒研究所 | Full-automatic transmission electron microscope tissue and cell treatment instrument |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040033590A1 (en) * | 2002-08-13 | 2004-02-19 | Yo-Hsin Su | Array biochip workstation |
| US20100137574A1 (en) * | 2008-11-28 | 2010-06-03 | Roche Diagnostics Operations, Inc. | System and method for the automated extraction of nucleic acids |
| CN106168626A (en) * | 2016-04-08 | 2016-11-30 | 深圳雷杜生命科学股份有限公司 | Biochip analysis instrument and the method for analysis |
| CN106970026A (en) * | 2017-05-02 | 2017-07-21 | 深圳市活水床旁诊断仪器有限公司 | A kind of biochip cartridge and its operating method |
| CN110914403A (en) * | 2017-08-01 | 2020-03-24 | 深圳华大智造科技有限公司 | DNA sample loading apparatus, gene sequencing system, and DNA sample loading method |
| CN210481395U (en) * | 2020-04-04 | 2020-05-08 | 博奥生物集团有限公司 | High-throughput full-automatic nucleic acid detection system |
| CN211896907U (en) * | 2020-01-22 | 2020-11-10 | 北京和利康源医疗科技有限公司 | A multifunctional liquid workstation |
-
2022
- 2022-09-30 CN CN202280094275.9A patent/CN118922523A/en active Pending
- 2022-09-30 WO PCT/CN2022/123075 patent/WO2024065608A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040033590A1 (en) * | 2002-08-13 | 2004-02-19 | Yo-Hsin Su | Array biochip workstation |
| US20100137574A1 (en) * | 2008-11-28 | 2010-06-03 | Roche Diagnostics Operations, Inc. | System and method for the automated extraction of nucleic acids |
| CN106168626A (en) * | 2016-04-08 | 2016-11-30 | 深圳雷杜生命科学股份有限公司 | Biochip analysis instrument and the method for analysis |
| CN106970026A (en) * | 2017-05-02 | 2017-07-21 | 深圳市活水床旁诊断仪器有限公司 | A kind of biochip cartridge and its operating method |
| CN110914403A (en) * | 2017-08-01 | 2020-03-24 | 深圳华大智造科技有限公司 | DNA sample loading apparatus, gene sequencing system, and DNA sample loading method |
| CN211896907U (en) * | 2020-01-22 | 2020-11-10 | 北京和利康源医疗科技有限公司 | A multifunctional liquid workstation |
| CN210481395U (en) * | 2020-04-04 | 2020-05-08 | 博奥生物集团有限公司 | High-throughput full-automatic nucleic acid detection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119881362A (en) * | 2025-02-27 | 2025-04-25 | 中国科学院武汉病毒研究所 | Full-automatic transmission electron microscope tissue and cell treatment instrument |
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