WO2022194543A1 - Vorrichtung und verfahren zum absetzen von flüssigkeit auf träger - Google Patents
Vorrichtung und verfahren zum absetzen von flüssigkeit auf träger Download PDFInfo
- Publication number
- WO2022194543A1 WO2022194543A1 PCT/EP2022/055182 EP2022055182W WO2022194543A1 WO 2022194543 A1 WO2022194543 A1 WO 2022194543A1 EP 2022055182 W EP2022055182 W EP 2022055182W WO 2022194543 A1 WO2022194543 A1 WO 2022194543A1
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- WIPO (PCT)
- Prior art keywords
- carrier
- drops
- detector
- generator
- drop
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1034—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves specially designed for conducting intermittent application of small quantities, e.g. drops, of coating material
-
- 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
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N35/1011—Control of the position or alignment of the transfer device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/002—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles
-
- 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
- G01N2035/1027—General features of the devices
- G01N2035/1034—Transferring microquantities of liquid
Definitions
- the present invention relates to a device and a method for depositing liquid onto a carrier, and the use of the device as a metering device for liquid onto a carrier.
- the liquid preferably contains at least one substance, which is preferably at least one type of particle or a mixture of at least two types of particles, which are in particular biological cells.
- the particles, in particular biological cells are suspended in the liquid, preferably in the form of isolated cells.
- Biological cells can be those of microorganisms, e.g. bacteria, yeast or fungi, plant or animal cells, in particular human cells, each from a culture or biological sample, e.g. a blood sample or from tissue.
- the device and the method that can be carried out with it have the advantage of depositing drops of the liquid onto a carrier at high speed, with each drop being assigned the measured value at least one detection, so that each drop has its content of substance or particles or another property as a measured value is assigned.
- the carrier preferably has cups and the The device is set up to deposit the drops, preferably individual drops or a predetermined number of drops, in individual cups.
- EP 2 546656 B1 describes a device for ejecting drops with an optical detector which is aimed at a monitoring section of the device in which a liquid to be ejected is contained, with a control device which changes the state of particles in the monitoring section by controls an actuator for ejection.
- EP 2 577254 B1 describes a device for depositing drops, which is driven to generate drops from a liquid with a piezo, which is controlled depending on the detection of the liquid in a channel section. Drops ejected from the channel are controllably directed to one of two positions.
- DE 102015 000920 A1 describes the control of a positioning device, which is coupled to a dispensing unit, with two cameras that are intended to provide coordinates for the control of the positioning device.
- DE 102015 202 574 A1 describes a nozzle in which a controlled sound generator can apply vibrations to liquid in a targeted manner in order to dispense individual drops.
- WO 2007/102785 A1 describes a carrier with continuous bores that have a taper for receiving liquid droplets.
- WO 2010/004627 A1 describes that, in order to deposit individual volumes, a liquid in a capillary can be irradiated with light and then deposited through a nozzle, with the deposited volume being controlled as a function of the concentration of particles.
- the aforementioned devices have the disadvantage of a low settling rate of drops on a carrier.
- the object of the invention is to provide an alternative device and an alternative method for depositing drops on a carrier in order to allow drops to be deposited more quickly.
- the device and method are preferably set up such that the measured values for the particles contained in the drops are assigned to the drops.
- the invention solves the problem with the features of the claims, in particular by providing a device for depositing drops of liquid onto a carrier, which has a drop generator which is set up for generating drops from a liquid, and a holding device which is set up for receiving a carrier , at least one detector which is set up to detect a signal for each liquid section from which the droplet generator forms a droplet and/or to detect a signal for each droplet produced and/or deposited droplet, e.g.
- the at least one detector preferably being connected to a memory which is set up to assign signals recorded by the at least one detector to the areas relative to the holding device in which drops produced from liquid sections dismissed zt and/or are arranged on the carrier, the areas being, for example, spaced-apart surface areas of a carrier, in particular wells formed in a carrier,
- a memory preferably an electronic memory, which is set up to assign signals from the at least one detector to the areas relative to the holding device in which the respective liquid sections or drops are arranged on a carrier,
- the drop generator is preferably set up to generate drops independently of the detection
- the droplet generator is preferably set up for the exclusively continuous generation of droplets, a transport device for the relative movement of the holding device to the droplet generator, preferably for relative movement with a distance between the holding device and droplet generator, the transport device for movement of the holding device or for moving the drop generator, and wherein the movement of the transport device is optionally controlled solely depending on the rate of drop generation and/or depending on the input of data for the arrangement of wells of a carrier to be arranged on the holding device, optionally with the control device connected to the transport device, which is set up to detect the relative position of the holding device to the droplet generator, in particular the relative position of a carrier arranged on the holding device to the droplet generator, and to control the transport device,
- control device has a position detector directed towards the holding device, which is set up to detect the relative position of the holding device to the droplet generator and to control the position of the transport device depending on the detection, the transport device being set up in particular to control the holding device or the droplet generator to move in order to successively position regions that are spaced apart and in which wells of a carrier to be arranged on the holding device are preferably arranged, suitable for the droplet generator,
- the droplet generator is controlled as a function of the at least one detector and the transport device, in particular a control device connected to it, is set up, the holding device or the To move the droplet generator only when the detector detects at least one, preferably exactly one, predetermined signal, has or consists of it.
- the device is set up so that each individual drop or a plurality of drops are deposited individually on areas of a carrier, preferably in each case in an individual well of a carrier.
- the device and method are set up such that the measured values for the substance contained in the drops are assigned to the drops and their arrangement on a carrier and this assignment is preferably stored in a memory.
- the device can be set up such that the transport device moves the holding device or the droplet generator at least twice in order to match at least a proportion of the wells or all wells of the carrier at least twice to the Align drop generator and deposit at least one more drop of the same liquid in the portion of wells or in all wells.
- the drop generator can generate single or multiple drops using any method. Without claiming completeness, the generation can take place electromechanically, piezoelectrically, by mechanical deflection, pneumatically, thermally by vapor formation, by thermal expansion, by electrostatic repulsion or attraction, acoustically, optically and/or by means of valves.
- the transport device is set up for a relative movement of the holding device, on which a carrier is to be arranged, to the droplet generator.
- the transport device can be set up to move the holding device and the droplet generator can be stationary, and/or the holding device can be stationary and the transport device can be set up to move the droplet generator.
- both the holding device and the droplet generator can be arranged on a transport device for relative movement to one another.
- the device can be set up to deposit at least one drop of at least one second liquid on each area of the holding device or of the carrier arranged thereon, on which at least one drop is deposited, before and/or after the drop has been deposited.
- the second liquid has a different composition than the particle-containing liquid.
- the second liquid can be, for example, a cultivation medium for cells, a liquid containing a reagent, a liquid containing a dye, a liquid containing a biomolecule or a plurality of different biomolecules.
- the device can be set up to first deposit drops of a second liquid on areas, in particular wells, of a carrier, then deposit drops of the liquid containing particles, and optionally subsequently droplets of a third liquid on the same areas.
- the third liquid may have the same composition as the second liquid or a different composition.
- the device can be set up to deposit a second liquid and/or third liquid independently of one another in the same predetermined areas, in particular predetermined wells of a wearer, in the form of drops and in other areas, in particular wells, no second liquid and/or third liquid deposit in the form of drops.
- the device can be set up to control each of the drop generators with a different frequency of drop generation and/or different pressurization. This is not limited to two or three liquids, but can be applied to any number of liquids.
- the device in embodiments in which the device is set up to deposit a second and/or a third liquid in the form of droplets in addition to a particle-containing liquid in the same predetermined areas, in particular wells, it preferably has at least one separate second droplet generator for the second liquid and optionally a separate third drop generator for the third liquid.
- the device can have additional droplet generators. All droplet generators, e.g. a second and/or a third droplet generator, can be spaced apart from one another, e.g. fixed at a distance from the droplet generator for the particle-containing liquid and optionally only movably guided together by the transport device or all stationary.
- the device can be set up such that a second droplet generator and, optionally, a third droplet generator are moved at the same speed or at a different speed relative to the holding device or to the carrier arranged on it, are controlled for the same or different droplet generation frequencies, and/or is acted upon in each case with the same or different pressure.
- the device can also optionally be set up to deposit a predetermined number of drops in each area of the holding device or a carrier arranged thereon, in particular in each cup, with the number being predetermined, e.g. as the total volume of this number of drops, which on average is at least or contains exactly one particle.
- the device can be without a memory connected to the detector.
- the device in this embodiment can also be without a detector, so that the device is set up to deposit the predetermined number of drops on spaced areas of a holding device or on spaced areas of a carrier arranged on the holding device without having a detector and without one memory associated with the detector.
- the device is set up to deposit drops at a high rate on a carrier, in particular on spaced areas of a carrier or in wells of a carrier, while the holding device on which the carrier is arranged and/or the droplet generator is moved by means of a transport device, in particular is moved relative to the positioning of the cups to the droplet generator. Since the device is set up to deposit all drops on a carrier, in particular in its cups, there is no need to move the nozzle over the carrier in a controlled manner depending on the detection of particles in the liquid, so that the device allows drops to be deposited quickly allows the carrier, in particular into wells of the carrier arranged on the holding device.
- the transport device is controlled solely as a function of the rate of drop generation and/or optionally in addition to the deposition of a predetermined number of drops per area, the relative movement of the holding device or carrier arranged thereon to the drop generator depends on the result of the detection of a signal for each liquid section, from which the drop generator forms a drop, and/or a signal for each drop produced, preferably independently.
- the transport device is particularly preferably controlled independently of the detection of substance in droplets.
- the concentration of particles in the liquid, which is to be separated into drops and deposited on the carrier can be adjusted such that a predetermined number of particles, for example a maximum of accuracy, is statistically determined for each volume of a drop to be generated or for each predetermined number of drops 1 particle, for example statistically 0.2 to 0.9 particles, or exactly 2, 3, 4 or more particles.
- the at least one detector which is set up to detect a signal for each liquid section from which the drop generator forms a drop and/or which is set up to detect a signal for each drop produced, is preferably directed at at least one area in which a liquid section has a continuous liquid phase is arranged, from which the droplet generator generates a droplet, e.g. an area in the inner volume, e.g is arranged in which drops are formed from a liquid, and/or which is an area in which drops are arranged on a carrier arranged on the holding device, eg on spaced surface areas of a carrier or drops arranged in wells of a carrier.
- the signal can be specific to a substance contained in the liquid, which is in particular a particle, eg a cell or synthetic particle made of plastic, metal, ceramic or glass, and/or an added marking reagent.
- a detector can be a photoelectric cell, a photo intensifier tube, a digital photo sensor, eg a digital camera, optionally with upstream optics, eg microscope optics.
- the electronic memory can have a digital image processing unit, which is optionally coupled to the detector directly or via data transmission means.
- the signal detected by the detector may correspondingly be the intensity of a particular wavelength, eg a wavelength at which a labeling reagent associated with a particle fluoresces or at which particles absorb or scatter light.
- the signal detected by the detector can be a microscopic image, eg in bright field or phase contrast or fluorescence image or dark field.
- the microscopic image can contain several wells at the same time.
- the microscopic image can be composed of multiple images to obtain a 3D image of the contents of the wells.
- a detector for recording microscopic images can be arranged below the carrier and used to image the contents of the wells after the method according to the invention has been carried out, preferably in comparison with or as a differential image with a microscopic image taken by the carrier before the method was carried out has been recorded.
- the arrangement and orientation of a detector for liquid in a liquid section in which the liquid forms a continuous phase has the advantage that the detector on a quasi stationary area flowing liquid is directed.
- the detector can be a conductivity sensor.
- the transport device in particular a control device connected to it, can be set up to control the drop generator only move relative to the holding device or only move the holding device relative to the droplet generator when at least one a predetermined signal is preferably precisely detected, which indicates, for example, the presence of a particle, in particular a cell, in a drop.
- Such a predetermined signal can be, for example, the presence of at least one particle which is a cell or a synthetic particle, the presence or absence of a labeling reagent or a labeled specific binding molecule, for example a labeled antibody or a labeled DNA or RNA molecule Cell wall or dye for color marking of cell organelles or the cytosol.
- the device can optionally be without a memory configured to store signals from the at least one detector.
- a detector is aimed at an area in which drops are arranged on a support arranged on the holding device, e.g Holding device or be directed to the carrier arranged thereon.
- a detector can be aimed at the holding device or at a carrier arranged on a holding device from the direction from which the droplet generator has deposited liquid.
- the detector may be aimed at a fixture in a direction in which the detector is aimed at that side of a carrier placed on the fixture from which cups extend into the carrier, or at the open cross-sections of the cups. This has the advantage that drops deposited in cups of the carrier can be detected by the detector directly or without being adversely affected by the material of the carrier.
- the device can have an excitation light source which is directed onto the holding device or onto a carrier arranged thereon.
- An excitation light source can be directed onto the holding device or onto a carrier arranged thereon from the same side as the detector, or from the side opposite the detector.
- the device may have one detector or at least two or three detectors directed towards one of these areas.
- the at least one detector and the preferably electronic memory connected to it are set up to assign the signals of the at least one detector to the position of the holding device relative to the droplet generator, in particular the signals of the assign at least one detector to the position of cups that are arranged on the holding device. This association can be made in relation to a reference point attached to the carrier.
- the at least one detector can be an optical detector, preferably in combination with a light source that is set up to irradiate the area on which the detector is directed.
- a detector may be a conductivity sensor arranged to measure changes in conductivity in the presence of a particle, e.g., when a liquid containing the particle passes through a portion of the drop generator.
- a detector is generally preferably set up to determine the presence of a particle and/or the presence of a labeling reagent added to the liquid, which can be, for example, a labeled specific binding molecule, e.g.
- the marking can generally be e.g. a nanoparticle, a dye or a functional group, regardless of the binding molecule or marking area, or the marking reagent can consist of a marking.
- the detector can be set up to detect the arrangement of drops on the carrier and preferably to store the detected arrangement of drops on the carrier in a memory, more preferably additionally signals assigned to the drops for the presence of a substance contained in the drops.
- the transport device can be set up to move the droplet generator or the holding device independently of the carrier and of the arrangement of wells on the carrier.
- the drop generator is set up to deposit one or more drops independently of the carrier or wells on the carrier and the detector is set up to detect the position of the drop deposited on the carrier or the arrangement of the drops deposited on the carrier, this detected Assigning a position or arrangement to a reference point on the carrier and storing this data in a memory preferably also includes signals assigned to the drops for the presence of a substance contained in the drops.
- the substance can be used for easier identification of these drops, for example in the form of a marking reagent, in particular a coloring agent.
- each carrier can have a reference point, eg a code.
- the reference point can be arranged on the carrier, on the holding device or at any desired location.
- the position detector of the control device can be directed to an area of the holding device opposite the droplet generator or to an area of the holding device facing the droplet generator.
- the control device is set up to determine the position of cups of a carrier arranged on the holding device and to control the transport device, e.g. to control that cups for receiving drops are positioned to match the drop generator or a drop generator is positioned to match the cups, in particular, only be positioned as a function of the frequency of drop generation.
- the optional position detector can be set up to detect the position of the holding device, preferably a carrier arranged thereon, relative to the droplet generator, continuously during the movement of the transport device, at one interval or at least two time-spaced intervals, or only at the beginning of the operation of the droplet generator and /or record only at the beginning of the movement and/or at the end of the movement of the transport device.
- An interval can be one or more time-spaced fixed time segments of the movement of the transport device and/or the operation of the drop generator, or a number of wells that are positioned appropriately for the drop generator.
- the transport device can have a correction drive, eg piezo actuators, which is controlled by the position detector.
- the movement of the transport device in particular by means of a correction drive, can be an acceleration or deceleration of the movement of the transport device and/or a movement orthogonal to the movement of the transport device, optionally parallel or orthogonal to the plane of the holding device or to the surface of a carrier to be arranged on it.
- the correction drive acts on the transport device in order to control the movement of the holding device or the droplet generator depending on the position detector.
- a correction drive can be fitted between the transport device and the holding device driven to move by it or the droplet generator.
- the transport device can be set up to close one of the holding device and the droplet generator move and the correction drive can be set up to move the other of the holding device and droplet generator that is not moved by the transport device.
- the movement of the transport device can be controlled in particular as a function of the position detector, e.g. when the position detector is set up for continuous detection of the position of the holding device or a carrier arranged on it relative to the droplet generator.
- the transport device can be controlled depending on the position detector to move the holding device or the droplet generator.
- the device has at least two droplet generators which are arranged at a distance from one another which is, for example, perpendicular or parallel to the direction of movement of the transport device.
- the drop generator is located a distance from the support by which the drop generator is spaced from the support when a carrier is placed on the support such that liquid exiting the drop generator traverses the distance of the drop generator from the carrier as free falling drops.
- the drop generator can be arranged at a distance from the holding device by which, when a carrier is arranged on the holding device, the drop generator is spaced from the latter such that liquid exiting the drop generator contacts the carrier before the liquid loses contact with the drop generator, e.g. in a distance equal to or less than the exiting liquid diameter.
- the diameter of the exiting liquid or droplets can be determined depending on parameters such as surface tension, viscosity, temperature, pressure level in the droplet generator, size of the outlet opening, frequency and amplitude of the droplet-generating energy input of the droplet generator.
- the drop generator can be a duct with an orifice or a nozzle for generating drops, optionally with a transparent area at which an optical detector is directed.
- the drop generator is connected to a source of liquid from which drops are to be generated.
- the source can be pressurized or a pump can be placed in-line between the source and the drop generator.
- the drop generator can have a vibration generator, for example one controlled with electrical voltage pulses activatable piezo crystal.
- the vibration generator is set up to apply frequency, also referred to as rate, and amplitude of the droplet-generating energy input to the liquid flow in the droplet generator.
- At least two droplet generators are connected to a source for liquid, with the droplet generators being directed towards a holding device and being set up to deposit drops of the liquid onto exactly one carrier, in particular into its wells, at the same time.
- the holding device on which the carrier is to be arranged can be moved by the transport device and/or the correction drive in at least one direction, preferably in one plane, e.g. an XY table, or in three dimensions, e.g. an XYZ table .
- the carrier preferably has a one-piece or multi-piece plate made of glass and/or silicon and/or plastic and/or metal and optionally has cups in a regular or irregular arrangement or has a flat surface on which drops can be deposited in spaced areas. or consists of it.
- the wells Preferably have only one cross-sectional opening, alternatively the wells may be through-holes extending through the full thickness of the support and have a cross-section which retains droplets of settled liquid by capillary action, e.g., a circular cross-section of 10 to 500 ⁇ m in diameter .
- the wells can be spaced from 5 pm to 500 pm or more.
- the cups can have a depth of 15 pm to 500 pm or more. The ratio of depth to diameter can preferably be between 1 and 50.
- the device can be set up to determine the number and/or sequence of the drops or arrangement of the wells for which the absence of a signal from the detector for the presence of a substance, in particular a particle, was detected and to assign the carrier as an identification pattern.
- the transport device can have, for example, a reference switch and stepper motor, a mechanical stop and a motor for position determination and as a drive controlled servo motor, or a controlled glass scale, eg with electro-optical scanning, with linear axis drive.
- control device can be set up such that data for the arrangement of wells can be entered and the control device moves the transport device for positioning the droplet generator or the holding device according to the arrangement entered.
- the arrangement can be regular, e.g. a grid of the wells, or an irregular arrangement of the wells.
- the device can have a sensor for inputting data for the arrangement of the wells, e.g coding e.g. a QR code on the carrier.
- the coding is linked to data for the arrangement of the wells, it being possible for the data for this arrangement to be taken from a memory.
- the control unit can be set up to control the drop generator, in particular its pressurization and/or its vibration generator, and/or the transport device depending on the entered arrangement of wells in order to drop drops in a targeted manner into the wells of the arrangement.
- the droplet generator can be set up, in particular independently of signals from the detector for the presence of a substance in droplets, to generate a sequence of droplets in which at least two droplets are generated at a shorter time interval than a longer time interval to the subsequently generated droplet amounts to.
- the transport device is set up to align the holding device and the drop generator relative to one another, so that a cup of a carrier to be arranged on the holding device is positioned to match the drop generator, in order to deposit the at least two drops therein within the shorter time interval, and the transport device is set up is to move the fixture and the drop generator relative to each other during the longer time interval to the subsequently generated drop in order to position another cup to match the drop generator.
- the droplet generator is preferably set up to generate the sequence of droplets independently of the signal from a detector for the presence of a substance in droplets.
- the drop generator can be set up to generate drops at a shorter time interval until at least one Signal for the presence of a substance is detected in a drop and to generate the immediately subsequent drop at a longer time interval.
- the droplet generator for example its vibration generator or its application of pressure, can be controlled as a function of the signal from the detector for the presence of a substance.
- the device can be set up, following a first movement of the transport device to align each cup of a carrier arranged on the holding device relative to the droplet generator, to position the droplet generator or the holding device again by means of the transport device exclusively with those cups suitable for the droplet generator for which the absence of the predetermined number of particles, in particular the absence of particles, has been detected by the detector.
- the droplet generator can be moved, depending on the signals recorded by the detector, to match the wells for which the absence of the predetermined number of particles, in particular the absence of particles, has been detected.
- the device is set up to terminate the method upon detection of a predetermined signal by a detector, e.g. upon detection of a signal indicating the absence of a carrier or wells, in order not to let any liquid escape if there is no carrier or a carrier in the wrong orientation is arranged on the holding device.
- a signal upon detection of which the process is terminated may be one indicative of the absence of liquid in one of the drop generators, a signal indicative of a drop frequency outside a predetermined range, or a signal indicative of the presence of drops outside of wells of a carrier, e.g. a signal picked up by a detector or position sensor aimed at the carrier.
- the method for depositing drops on a carrier that can be carried out using the device has the advantage of depositing drops at a high rate on a carrier arranged on the holding device, in particular depositing them in individual wells of a carrier, and the signal of the at least one detector detects the drops or to assign to the individual wells into which the drops are deposited.
- the device produces an arrangement of drops, in particular of individual drops, on a carrier or in wells of a carrier, in each case with assignment of the signal from the detector to the drops or to the wells. Therefore, identification of the wells is easy, exactly one or one contain a predetermined number of drops with a substance generating a detector signal or with a particle.
- the rate of settling of individual droplets in each individual well can be eg 1 to 6000 Hz, eg 20 to 200 Hz, eg 40 to 60 Hz and is preferably equal to the rate of generation of droplets.
- the setup of the device or its parts describes the corresponding steps of the method.
- the transport device can be set up for relative movement at the same speed between the drop generator and the holding device when a cup is positioned to match the drop generator and also when no cup is positioned to match the drop generator.
- the transport device is set up for continuous movement at a constant speed and that the droplet generator is controlled during this movement for the continuous generation or depositing of drops.
- the drop generator can be set up to deposit a predetermined number of drops at a higher rate in these wells when positioned appropriately than when positioned next to a well, e.g. for depositing drops at a higher rate in suitably positioned wells than when the drop generator is not positioned appropriately , especially when positioned next to wells.
- the setting up of the device and the setting up of its elements also describes the method, and the method also describes the setting up of the device and its elements to the method steps.
- the method has the steps of using a droplet generator, generating droplets from a liquid containing at least one substance, which are preferably particles, and depositing droplets on a carrier, preferably depositing individual droplets in individual wells of a carrier or on spaced-apart areas of a flat surface of a carrier while the carrier is arranged on a holding device,
- detecting preferably by means of a position detector, the relative position of the carrier to the droplet generator and, by means of a transport device controlled by a control device, positioning or moving the carrier in order to position successively spaced surface areas, in particular cups of the carrier, to match the droplet generator, in particular positioning in each case a separate cup for each individual drop or for a predetermined number of drops, suitable for the drop generator,
- a correction drive which is controlled as a function of a position detector, and positioning the carrier relative to the droplet generator, with the transport device moving one of the holding device or carrier and droplet generator and the correction drive moving the other of the holding device or carrier and To move drop generator, which is not moved by the transport device, or the correction drive is connected to the transport device, on or consists of.
- the at least one detector may be directed at a portion of liquid from which a droplet is subsequently formed, eg a continuous portion of liquid within the droplet generator or within a section of conduit before its outlet opening or immediately adjacent to the outlet opening of the droplet generator.
- the at least one detector can be aimed at an area that is arranged at a distance from the droplet generator and in which separate droplets, in particular as a free stream of droplets, are present or are moving in the direction of the carrier.
- This embodiment has the advantage that the time interval between the detection and the depositing of the droplets on the carrier is shorter than when sections of the continuous liquid flow are detected within or directly adjacent to the droplet generator.
- the at least one detector can be directed at an area in which the carrier is arranged on the transport device, or the detector can be directed at the carrier, eg on its upper side, from which wells extend into the carrier, or from the opposite underside, opposite the side onto which drops were deposited.
- a detector directed at the carrier allows the detection and assignment of the detected signals with a time and space interval from the droplets being deposited on the carrier and in particular the detection and assignment of the detected signals without a time interval between the detection of drops and the Deposition of the drops on the carrier, so that the correctness of the assignment is increased, for example compared to detection in a continuous flow of liquid or in the free flow of drops.
- a detector directed at the area where the top of a carrier placed thereon lies may be fixedly spaced from the drop generator and directed at the fixture or at a carrier thereon and further optionally by means of the transport means in parallel with the drop generator be movable.
- the detector can control that the transport device only moves the carrier relative to the droplet generator when the detector detects a signal for at least one or exactly one particle or for a predetermined number of particles, e.g. for a labeling reagent, so that drops are deposited in an area, in particular in a well, of a carrier until the detector detects such a signal.
- the transport device can be controlled by the control device depending on the detector for positioning the holding device relative to the droplet generator.
- the device is preferably set up to control the transport device depending on the input of data for the arrangement of cups of a carrier to be arranged on the holding device and to arrange the cups of this arrangement directly one after the other to match the droplet generator.
- the method can optionally run without a step of storing signals from the detector and/or without a step of assigning signals from the detector for positioning the carrier or the transport device.
- data for the arrangement of cups can be entered into the control device and the control device moves the transport device for positioning the droplet generator or the holding device according to the arrangement entered.
- the arrangement can be a regular one, for example a grid of wells be, or an irregular arrangement of the cups.
- Data for the arrangement of the wells can be entered via a sensor, the sensor being a microscope, for example, which takes the arrangement of the wells as an image as input for data, or an optical sensor which is set up to detect a coding of carriers, where the coding is, for example, a QR code on the carrier.
- the coding is coupled with data for the arrangement of the wells and the data for this arrangement can be taken from a memory.
- the control unit can control the droplet generator, in particular its pressurization and/or its vibration generator, and/or the transport device depending on the entered arrangement of wells in order to deposit drops in a targeted manner into the wells of the arrangement.
- the method is carried out without detection of the liquid, but the number of droplets is predetermined, which comprises a volume that contains a certain number of particles on statistical average, e.g. at least or exactly 1, 2, 3, 4, 5, 6 or more particles.
- the number of drops for a volume comprising a predetermined number of particles can be predetermined from the concentration of the particles in the liquid.
- the second liquid has a different composition than the particle-containing liquid.
- the second liquid can be, for example, a culture medium for cells, a liquid containing a reagent, a liquid containing a dye, a liquid containing one or more different biomolecules.
- drops of a second liquid can first be deposited on areas, in particular cups, of a carrier, then drops of the liquid containing particles, and optionally then drops of a third liquid.
- the third liquid can have the same composition as the second liquid or have a different composition.
- the transport device can be controlled to align a portion of the wells of a carrier to match at least one droplet generator until drops are deposited in this portion of the wells, while another portion of the carrier's wells are not is aligned to match the drop generator and no drop is deposited in it.
- the carrier can have cups of different sizes, which also contain data on the arrangement of the cups and data on the different sizes of the cups, and the transport device can be controlled as a function of this.
- the transport device can be controlled to align cups depending on their size to match the drop generator until a number of drops dependent on the size of the cup are deposited and/or additionally align them to match a second and/or third drop generator until one of the cup size dependent number of drops is deposited.
- the drop generator can be controlled to generate drops with a different frequency depending on the size of the cups.
- the position detection can be used in order to interrupt or cancel the process during execution if the deviations from a target position, which is determined by the position of the cups, are too great.
- FIG. 1 shows an XY table as holding device 1, which can be moved in a controlled manner in the horizontal XY plane.
- a carrier 2 for example made of plastic or glass or silicon or metal, which has cups 3 as spaced-apart surface areas, for example cups 3 arranged in rows and/or rows, which extend from only one side, here as Designated top 2a, as recesses in the carrier 2 extend.
- a drop generator 4 in the form of a nozzle is arranged at a distance from the XY table such that when the carrier 2 is arranged on the XY table the nozzle as a drop generator 4 is spaced such that the liquid 5 exiting the nozzle is a free stream of droplets 6 forms, or that liquid 5 exiting the nozzle already comes into contact with the carrier 2 while it is still in contact with the nozzle.
- the droplet generator 4 in the form of the nozzle has an optional vibration generator 7, for example a piezoelectric crystal to which voltage pulses are applied.
- a position detector 10 is aimed at the holding device 1 or the XY table 1, in particular at that of the nozzle 4 facing upper side 2a of the carrier 2 or on the nozzle 4 opposite underside 2b of the carrier 2 in order to detect the position of the cups 3 and to position the cups 3 appropriately for the droplet generator 4.
- the holding device 1 can be moved by means of a transport device 13a and is controlled by a control device 14 depending on the signal from the position detector 10 which records the position of the cups 3 in the carrier 2 .
- the device has a transport device 13b, which is set up for the controlled movement of the droplet generator 4 along the holding device 1.
- the device To enter data for the arrangement of wells 3 of a carrier 2 to be arranged on the holding device 1, the device has a sensor 15 which is set up to detect the arrangement of the wells 3 or to detect a coding 16 of a carrier 2 arranged on the holding device 1 .
- the coding 16 is connected, for example, to a memory 17 which contains data linked to the coding 16 for the arrangement of wells 3 of a carrier 2 .
- a light source 18 is directed onto the holding device 1 to illuminate the carrier 2 and, if applicable, a code 16 attached thereto.
- the at least one detector 11a can be aimed at a liquid section 9 within the droplet generator 4 .
- the detector 11a2 can be designed as a passage with a conductivity sensor in the inner volume of the nozzle 4 and be set up to determine a change in conductivity when a particle passes through as a signal.
- the detector 11a can be an optical detector directed through an optically permeable wall section 4o of the nozzle 4 to its interior volume, optionally with an excitation light source directed to the same liquid section 9 or the same interior volume.
- the at least one detector 1 lb can be directed to an area immediately adjacent to the outlet opening 4a of the nozzle 4, in which a continuous stream of liquid 5 emerges, or the detector 11c can be directed to an area downstream of the outlet opening 4a of the nozzle 4 , in which a free flow of drops 6 is formed.
- the at least one detector 1 ld can be directed onto the carrier 2 or onto the cups 3, from the top 2a and/or from the underside 2b of the carrier 2.
- each detector can be a source for illumination and/or excitation radiation or. Have excitation light, which is directed to the area to be detected.
- the detectors 11a, 11b, 11c, 11d, 11a2 irradiated excitation radiation and detectable radiation that can be picked up by the detector and processed into a signal are shown as parallel arrows pointing in opposite directions.
- Fig. 1 shows a correction drive 19 mounted on the one hand between the transport device 13a and the holding device 1 driven to move thereby, and on the other hand mounted between the transport device 13b and the droplet generator 4 driven to move thereby.
- the correction drive 19 is controlled as a function of the position detector 10 .
- Fig. 2 shows an embodiment which additionally has a second droplet generator 8a and a third droplet generator 8b, which are moved together with the droplet generator 4 by means of the transport device 13b along the holding device 1, or which are fixed in place together with the droplet generator 4 while the holding device 1 is moved by means of the transport device 13a.
- cultivated individual animal cells suspended as particles in the culture medium were dropped onto a carrier 2 by means of a nozzle as a droplet generator 4 .
- the suspended cells were conveyed from a reservoir at a flow rate through a nozzle that produced droplets each having a volume of about 100 to 50 pL at a rate of about 50 Hz, while below the nozzle by means of a controlled XY table, the formed the transport device 13a and the holding device 1, a glass plate with cups 3 as a carrier 2 was moved along.
- the XY table was placed at a distance from the nozzle opening by spacing the glass plate about 50 to 150 gm from the nozzle opening.
- the wells had an internal volume of approximately 200 pL and were arranged in a grid pattern.
- the XY table was controlled so that a cup was positioned below the nozzle when a single droplet was deposited from the nozzle.
- the wells of the glass plate were determined using a camera as a position detector, the signal from which was used to control the XY table to position the wells. With a concentration of one cell in only 20% of the deposited droplets at a droplet generation rate of 50 Hz, the output of individually deposited cells was 10 Hz, equivalent to 2500 wells with drops, of which 500 wells with isolated cells, within 50 s.
- the proportion of isolated cells deposited in wells can be increased, or the proportion of wells without cells can be reduced.
- Plant or animal cells cultured and suspended in medium or blood cells eg nucleated cells isolated from whole blood, were used as examples of cells.
- aggregated cultured animal cells so-called cell clusters, have been used.
- Cultivated E. coli was used as an example of bacteria.
- Spherical glass or plastic particles with an average size of 15 ⁇ m were used as an example of synthetic particles.
- the drop rate and drop volume were generated by the frequency of a Piezokri stable attached to the nozzle and by the flow rate and pressure of the liquid in the nozzle used as the drop generator.
- the wells had an essentially cylindrical cross-section and were arranged in a grid arrangement in a plate-shaped support made of glass with a size of approx. 127 mm ⁇ 85 mm and a thickness of approx. 0.5 mm.
- the proportion of wells with one cell according to the Poisson distribution indicates the statistical proportion of wells with one cell from the total number of wells.
- the values according to the Poisson distribution as given in the table are theoretically calculated values and do not take into account the effects of real experiments, e.g. sedimentation of particles before droplets settle.
- the transport device was controlled by the specified position detector and moved the carrier for example particles 1, 2 and 3 by moving an XY table, which formed the transport device, while the glass capillary used as a droplet generator was fixed in place above the XY table or the carrier was.
- a print head for liquids (SiJet) that can be moved in a controlled manner in one plane was used as the nozzle, while the carrier was fixed in place underneath.
- the detector with memory was set up to record the signals detected in the liquid area, to assign them to the respectively recorded position of the transport device or carrier and to store this assignment. This assignment made it easy to subsequently find wells that contained the desired number, eg exactly one particle.
- the detector was not aimed at the free flow of drops or at a continuous flow of liquid in the drop generator, but after the drops had settled the detector was aimed at the support to detect the drops settled in the wells.
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL305840A IL305840A (en) | 2021-03-15 | 2022-03-01 | Device and method for depositing a liquid on a carrier |
KR1020237030105A KR20230140568A (ko) | 2021-03-15 | 2022-03-01 | 담체 상에 액체를 침착하기 위한 장치 및 방법 |
JP2023552195A JP2024509794A (ja) | 2021-03-15 | 2022-03-01 | キャリア上に液体を滴下するための装置及び方法 |
CA3210861A CA3210861A1 (en) | 2021-03-15 | 2022-03-01 | Device and method for depositing liquid on a carrier |
CN202280020343.7A CN117203533A (zh) | 2021-03-15 | 2022-03-01 | 用于将液体沉降到载体上的设备和方法 |
EP22709314.3A EP4308938A1 (de) | 2021-03-15 | 2022-03-01 | Vorrichtung und verfahren zum absetzen von flüssigkeit auf träger |
Applications Claiming Priority (2)
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DE102021202518.8 | 2021-03-15 | ||
DE102021202518.8A DE102021202518B3 (de) | 2021-03-15 | 2021-03-15 | Vorrichtung und Verfahren zum Absetzen von Flüssigkeit auf Träger |
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WO2022194543A1 true WO2022194543A1 (de) | 2022-09-22 |
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PCT/EP2022/055182 WO2022194543A1 (de) | 2021-03-15 | 2022-03-01 | Vorrichtung und verfahren zum absetzen von flüssigkeit auf träger |
Country Status (9)
Country | Link |
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US (1) | US12030079B2 (de) |
EP (1) | EP4308938A1 (de) |
JP (1) | JP2024509794A (de) |
KR (1) | KR20230140568A (de) |
CN (1) | CN117203533A (de) |
CA (1) | CA3210861A1 (de) |
DE (1) | DE102021202518B3 (de) |
IL (1) | IL305840A (de) |
WO (1) | WO2022194543A1 (de) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007102785A1 (en) | 2006-03-09 | 2007-09-13 | Agency For Science, Technology And Research | Apparatus for performing a reaction in a droplet and method of using the same |
WO2010004627A1 (ja) | 2008-07-09 | 2010-01-14 | 古河電気工業株式会社 | 検体識別分注装置及び検体識別分注方法 |
EP2577254B1 (de) | 2010-06-10 | 2015-02-25 | Albert-Ludwigs-Universität Freiburg | Vorrichtung und verfahren zur ausgabe von in einem frei schwebenden tropfen eingeschlossenen zellen oder partikeln |
DE102015000920A1 (de) | 2015-01-26 | 2016-07-28 | Scienion Ag | Vorrichtung und Verfahren zur Deposition von Tropfen auf einem Substrat |
DE102015202574A1 (de) | 2015-02-12 | 2016-08-18 | Albert-Ludwigs-Universität Freiburg | Vorrichtung und Verfahren zum Dispensieren von unter Verwendung eines akustischen Felds ausgerichteten Partikeln in frei fliegenden Tropfen |
US20170274689A1 (en) * | 2016-03-23 | 2017-09-28 | Scienion Ag | Method and apparatus for single particle deposition |
EP2546656B1 (de) | 2010-02-09 | 2019-04-10 | Microjet Corporation | Entladungsvorrichtung für ein partikelhaltiges flüssigmaterial |
EP3552706A1 (de) * | 2018-04-13 | 2019-10-16 | Toshiba Tec Kabushiki Kaisha | Tröpfchenausgabevorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013161300A1 (ja) * | 2012-04-24 | 2013-10-31 | 株式会社マイクロジェット | 吐出システムおよび吐出システムにより吐出する方法 |
JP6657625B2 (ja) * | 2014-09-05 | 2020-03-04 | ソニー株式会社 | 液滴分取装置、液滴分取方法及びプログラム |
DE102015202547A1 (de) | 2015-02-12 | 2016-08-18 | Schaeffler Technologies AG & Co. KG | Durchflussbegrenzungseinrichtung für ein hydraulisches System |
US10605716B2 (en) * | 2017-07-21 | 2020-03-31 | Ricoh Company, Ltd. | Particle counting apparatus, particle counting method, and particle containing sample |
-
2021
- 2021-03-15 DE DE102021202518.8A patent/DE102021202518B3/de active Active
-
2022
- 2022-03-01 CN CN202280020343.7A patent/CN117203533A/zh active Pending
- 2022-03-01 KR KR1020237030105A patent/KR20230140568A/ko unknown
- 2022-03-01 IL IL305840A patent/IL305840A/en unknown
- 2022-03-01 CA CA3210861A patent/CA3210861A1/en active Pending
- 2022-03-01 EP EP22709314.3A patent/EP4308938A1/de active Pending
- 2022-03-01 JP JP2023552195A patent/JP2024509794A/ja active Pending
- 2022-03-01 WO PCT/EP2022/055182 patent/WO2022194543A1/de active Application Filing
- 2022-03-10 US US17/691,390 patent/US12030079B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007102785A1 (en) | 2006-03-09 | 2007-09-13 | Agency For Science, Technology And Research | Apparatus for performing a reaction in a droplet and method of using the same |
WO2010004627A1 (ja) | 2008-07-09 | 2010-01-14 | 古河電気工業株式会社 | 検体識別分注装置及び検体識別分注方法 |
EP2546656B1 (de) | 2010-02-09 | 2019-04-10 | Microjet Corporation | Entladungsvorrichtung für ein partikelhaltiges flüssigmaterial |
EP2577254B1 (de) | 2010-06-10 | 2015-02-25 | Albert-Ludwigs-Universität Freiburg | Vorrichtung und verfahren zur ausgabe von in einem frei schwebenden tropfen eingeschlossenen zellen oder partikeln |
DE102015000920A1 (de) | 2015-01-26 | 2016-07-28 | Scienion Ag | Vorrichtung und Verfahren zur Deposition von Tropfen auf einem Substrat |
DE102015202574A1 (de) | 2015-02-12 | 2016-08-18 | Albert-Ludwigs-Universität Freiburg | Vorrichtung und Verfahren zum Dispensieren von unter Verwendung eines akustischen Felds ausgerichteten Partikeln in frei fliegenden Tropfen |
US20170274689A1 (en) * | 2016-03-23 | 2017-09-28 | Scienion Ag | Method and apparatus for single particle deposition |
EP3552706A1 (de) * | 2018-04-13 | 2019-10-16 | Toshiba Tec Kabushiki Kaisha | Tröpfchenausgabevorrichtung |
Non-Patent Citations (1)
Title |
---|
ANDRE GROSS ET AL: "Single-Cell Printer: Automated, On Demand, and Label Free", JOURNAL OF LABORATORY AUTOMATION SOCIETY FOR LABORATORY AUTOMATION AND SCREENING, 1 December 2013 (2013-12-01), pages 504 - 518, XP055276802, Retrieved from the Internet <URL:https://jla.sagepub.com/content/18/6/504.full.pdf> [retrieved on 20160531] * |
Also Published As
Publication number | Publication date |
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DE102021202518B3 (de) | 2022-08-18 |
IL305840A (en) | 2023-11-01 |
US12030079B2 (en) | 2024-07-09 |
EP4308938A1 (de) | 2024-01-24 |
US20220288626A1 (en) | 2022-09-15 |
JP2024509794A (ja) | 2024-03-05 |
KR20230140568A (ko) | 2023-10-06 |
CN117203533A (zh) | 2023-12-08 |
CA3210861A1 (en) | 2022-09-22 |
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