EP1648610A1 - Dispositif de prelevement et de depot de gouttelettes d'au moins un liquide, procede de mise en oeuvre de ce dispositif, ainsi que systeme d'asservissement pour ce procede - Google Patents
Dispositif de prelevement et de depot de gouttelettes d'au moins un liquide, procede de mise en oeuvre de ce dispositif, ainsi que systeme d'asservissement pour ce procedeInfo
- Publication number
- EP1648610A1 EP1648610A1 EP03817510A EP03817510A EP1648610A1 EP 1648610 A1 EP1648610 A1 EP 1648610A1 EP 03817510 A EP03817510 A EP 03817510A EP 03817510 A EP03817510 A EP 03817510A EP 1648610 A1 EP1648610 A1 EP 1648610A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- rod
- passage
- closure element
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000000151 deposition Methods 0.000 title claims abstract description 65
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- 239000011261 inert gas Substances 0.000 claims description 5
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- 239000012528 membrane Substances 0.000 claims description 3
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- 239000011253 protective coating Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000012080 ambient air Substances 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 2
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- 238000005137 deposition process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
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- 238000000018 DNA microarray Methods 0.000 description 1
- 238000012351 Integrated analysis Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0241—Drop counters; Drop formers
- B01L3/0265—Drop counters; Drop formers using valves to interrupt or meter fluid flow, e.g. using solenoids or metering valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0241—Drop counters; Drop formers
- B01L3/0262—Drop counters; Drop formers using touch-off at substrate or container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/02—Drop detachment mechanisms of single droplets from nozzles or pins
- B01L2400/022—Drop detachment mechanisms of single droplets from nozzles or pins droplet contacts the surface of the receptacle
- B01L2400/025—Drop detachment mechanisms of single droplets from nozzles or pins droplet contacts the surface of the receptacle tapping tip on substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0633—Valves, specific forms thereof with moving parts
Definitions
- the present invention relates to a device for collecting and depositing droplets from at least one liquid, method for using this device, and control system for this process. a liquid and a process for implementing this device, as well as a servo system allowing the control of this process.
- the present invention makes it possible in particular to sample and deposit droplets of reagents and biological solutions with a determined volume of the order of nanoliter, with an uncertainty of the order of ten picoliters.
- Research in genomics, proteomics and more generally in biology and pharmacy have led to the development of integrated analysis systems (biochips), with a strong tendency to increase the number of tests per unit of area, for example the '' from 1000 to 10,000 per cm 2 .
- a film of the liquid to be deposited is formed inside the ring, which acts as a reservoir; the needle then passes through the film of liquid and deposits by buffering; the drawbacks of this method are the same as those of the previous method, namely an irregular deposit and significant evaporation of the liquid; moreover, this technique presents very limited possibilities of miniaturization;
- document WO 00/13796 describes a device for depositing, by contact, a liquid contained in a reservoir and taken to a printing point by a capillary conduit, rapid evaporation of the liquid is avoided, but the wear problems of the tip, irregular deposit and difficulty in plugging and washing remain;
- WO 99/04896 describes a device for depositing by contact with a liquid which adheres to a frustoconical tip, possibly grooved, said tip being connected to a spring making it possible to fix the value of the force exerted by the tip on the surface of deposit;
- the main drawbacks of this method are due to the evaporation of the liquid, the low sampling capacity and
- the invention proposes to avoid any contact with the ambient air before the liquid is deposited by producing a device which can be closed, and which can advantageously be supplied to the user in the form of a pre-filled cartridge.
- a device which can be closed, and which can advantageously be supplied to the user in the form of a pre-filled cartridge.
- such a device allows an adjustment of the quantity of liquid withdrawn or deposited with an accuracy less than a nanoliter.
- An object of the present invention is more specifically a device for collecting and depositing droplets of at least one liquid, comprising: an external tube having an opening at one of its ends; - An orifice of capillary dimensions in the wall of said external tube, making it possible to maintain inside said external tube a pressure equal to atmospheric pressure; a rim delimiting said opening; a rod free to slide inside said external tube; - an internal volume between said rod and the external tube; a closure element of said opening connected to said rod, and in which, when said rod is in an extremely advanced position, said closure element bears on the flange and thus hermetically closes said opening whereas, when the rod is out of this extreme position, a passage of capillary dimensions places the internal volume in communication with the outside.
- said closure element is held in said advanced position by means of applying an elastic force.
- the section of said passage varies continuously depending on the relative position of said rod relative to said external tube, between 0 and a maximum value, reached when said rod is in said fully retracted position.
- the maximum section of said passage is of the order of 10 "8 m 2 with an uncertainty of the order of 1%, so that the volume of the droplets deposited is of the order of nanoliter with an uncertainty of the order of 10 picoliters;
- said closing element is a point, preferably conical, or a ball;
- the means of applying an elastic force is chosen between a spring, an elastic beam, an elastic membrane, a block of elastomeric material;
- - the means for applying an elastic force connects the end of the rod opposite the opening to the external tube or to a second rod, collinear with the first;
- the closure element is integral with said rod;
- the means for applying an elastic force connects the closure element to the end of the rod on the side of the opening, according to advantageous characteristics:
- the device also comprises a position sensor which makes it possible to measure the position of said rod inside said external tube;
- the device also comprises an actuator which makes it possible to adjust the position of said rod inside said external tube; -
- the sensor and the actuator
- the device constitutes a cartridge prefilled with a liquid.
- Another object of the present invention is a sampling and deposition head constituted by several of said devices, to allow a network of droplets of at least one liquid to be deposited.
- the quantity of said liquid withdrawn or deposited by each device belonging to said withdrawal and deposit head can be controlled individually.
- the invention also relates to a method for withdrawing at least one liquid using the above device, and comprising at least the following steps: - immersion of said device in a container containing the liquid; retraction of said closure element to open the passage and filling of said internal volume by the effect of hydrostatic pressure and capillarity; and - extracting said device and advancing said closing element to close the passage.
- the retraction of said closure element is caused by the pressure exerted by said closure element on the bottom of said container.
- the retraction of said closure element is caused by the actuator.
- Another object of the present invention is a method for withdrawing at least one liquid using the preceding device, and comprising at least the following steps: - bringing said opening at the end of said device closer to the surface of said liquid to withdraw; retraction of said closure element by the actuator to open the passage and filling of said internal volume by the effect of capillary forces only. The method applies in particular to the case where the liquid is contained in a microwell.
- the quantity of said liquid which is sampled is controlled by adjusting the position of said rod inside said external tube, and consequently the section of said passage.
- Another object of the present invention is a method of deposition by contact of at least one liquid using a device described above, and comprising at least the following steps: positioning of said device vertically from the point of the deposition surface where we want to make the deposit; - bringing said closure element into contact with said deposition surface and opening of said passage by the effect of the pressure exerted by said closure element on said contact surface; deposition of a controlled quantity of said liquid by the combined effect of the adhesion forces of said liquid on the deposition surface, of capillarity and of gravity; and lifting said device and advancing said closure member to close the passage.
- the present invention also relates to a method of contactless deposition of at least one liquid using the device defined above, and comprising at least the following steps: positioning of said device vertically from the point of the deposition surface where the 'we want to make the deposit; retraction of said closure element by the effect of said actuator, which causes said passage to open; and - advancement of said closure element to close the passage and deposition of a droplet of said liquid by the combined effect of gravity and the piston effect induced by the advancement of said closure element;
- the quantity of said liquid which is deposited is controlled by adjusting the position of said rod inside said external tube, and consequently the section of said passage.
- Another aspect of the present invention is a method for washing such a device, comprising injecting a detergent liquid under pressure into the interior of said device, the evacuation of said detergent liquid being effected by suction via the passage, kept open by retracting said closure element.
- the invention also relates to a servo system for regulating the quantity of liquid withdrawn or deposited, in which the translation system presses the closure element against the bottom or said deposit surface with a constant force, which can optionally be zero and in which: the relative position of said rod relative to said external tube is determined by the sensor; said relative position is compared to its target value, calculated as a function of the quantity of the liquid which it is desired to withdraw or deposit; the actuator acts to bring said relative position closer to said target value.
- FIGS. 5A to 5C the steps of a method for implementing said device for depositing a determined quantity of a liquid on a deposition surface, comprising bringing said device into contact with said deposition surface;
- Figure 6, a variant of said deposition process, carried out without contact;
- FIG. 7 the washing of said device seen in longitudinal section, making it possible to avoid contamination between different liquids sampled and / or deposited by the same device;
- Figure 1 shows a device 100 for removing and depositing droplets of at least one liquid comprising an external tube 101 constituted by a cylindrical body 103 and an end portion 105 which gradually narrows. The end of said end portion 105 has an opening 107 defined by a lip-shaped rim 109. Inside said external tube 101 is free to slide, a cylindrical rod 111 carrying a conical tip 113.
- said cylindrical rod 111 remains blocked inside said external tube 101.
- said conical point 113 rests on the flange 109 and thus hermetically closes said opening 107; otherwise, a passage 115 of microscopic dimensions places the internal volume 117 between said rod 111 and the external tube 101 in communication with the outside.
- the section of said passage 115 varies continuously as a function of the relative position Z of said rod 111 by ratio to said external tube 101, between 0 and a maximum value, reached when said rod 111 is in the second extreme position, said to be fully retracted.
- the section of said passage 115 has a quadratic dependence on Z.
- the maximum value of the volume deposited is advantageously of the order of 1 nanoliter, with an uncertainty of the order of 10 picoliters .
- the section of passage 115 reaches a maximum value of the order of 10 ⁇ 8 m 2 with an uncertainty of the order of 1%.
- the end of said rod 111 opposite to said tip 113 is fixed to a cylinder 121 made of magnetic material (that is to say having a relative magnetic permeability ⁇ r substantially larger than 1) of larger diameter, which connects said rod 111 to a means for applying an elastic force, such as the spring 123, which maintains said rod 111 in its most advanced position.
- a wire 125 is wound to form a solenoid 127; when said rod 121 is in its fully advanced position, the cylinder 121 is partially inside said solenoid 127; when said rod 111 is in its fully retracted position, the cylinder 121 is entirely inside said solenoid 127.
- the inductance of said solenoid 127 depends on the relative position Z of said rod 111 with respect to said external tube 101; the solenoid 127 therefore functions as a position sensor.
- the measurement of the inductance can be carried out by one of the methods known to those skilled in the art versed in electronics or electrical engineering.
- An electric current flowing in the solenoid 127 generates a magnetic field which exerts an attractive force on the cylinder 121.
- the solenoid 127 then functions as an actuator, acting on the relative position Z of said rod 111 relative to said external tube 101.
- the positioning of said device 100 is carried out with micrometric precision by a translation system xyz 129 to which the external tube 101 is fixed.
- FIG. 2A shows a detail of another particular embodiment of the present invention.
- the relatively short rod 211 carries a conical point 113 and can slide inside said external tube 101, while the rod 212 is fixed.
- a spring 123 connects the two rods 211 and 212 and maintains said rod 211 in its most advanced position.
- said conical tip 113 rests on a flange 109 and thus hermetically closes an opening 107.
- the orifice 119 constitutes the only point of contact between the liquid contained in said devices 100 and 200 and the ambient air. If this is to be avoided, for example to avoid oxidation of said liquid, it is possible to connect the orifice 119 to a container 219 containing an inert gas, for example Argon, maintained at the pressure of 1 atmosphere, as illustrated by the Figure 2C.
- an inert gas for example Argon
- FIG. 2D A sampling and deposition head 225, constituted by a matrix of devices 100 of the type shown in FIG. 1A fixed to a support 227, is illustrated in FIG. 2D.
- Such a composite head allows the simultaneous deposition of a network of droplets such as those shown in FIGS. 11A and 11 B.
- the actuator 127 the quantity of liquid deposited by each device belonging to the head 225 can be individually controlled .
- FIGS. 3A to 3C show the different stages of a method for collecting and depositing droplets of liquids which uses the device which is the subject of the present invention.
- the device 100 is introduced (FIG.
- FIGS. 4A to 4C illustrate the different stages of a variant of said sampling method, adapted to the case where the liquid is contained in a microwell.
- the device 100 is brought closer to the surface 41 of a liquid 32 contained in a microwell 43 until the tip 113 of the rod 111 comes into contact with said surface 41.
- the liquid 32 adheres to said tip 113 and forms a concave meniscus 45.
- an electric current I is injected into the solenoid 127 to generate a magnetic field H in order to raise said tip 113 and thus open the passage 115.
- the suction of the liquid is made exclusively by capillary action; this requires that the internal surface of said device be sufficiently hydrophilic with respect to that of said microwell 37.
- FIGS. 5A-5C show the different stages of a method for depositing a determined quantity of a liquid on a deposit surface, comprising bringing said device into contact with said deposit surface.
- the device 100 is positioned on the deposition surface 51, vertical to the point where it is desired to deposit a predetermined quantity of said liquid 32.
- FIG. 5B illustrates the device 100 lowered.
- the passage 115 opens, as in the removal phase (FIG. 3B).
- the combined effect of the capillary forces, the adhesion forces of said liquid 32 with said deposition surface 51 and of gravity allow the deposition of a predetermined amount 53 of said liquid 32 on said deposition surface 51.
- the volume of said predetermined quantity 53 can be controlled by adjusting the degree of opening of said passage 115.
- the orifice 119 allows air to enter the internal volume 117 to maintain a constant pressure at l inside said device 100.
- FIG. 5C once said predetermined quantity has been deposited
- FIG. 6 shows a variant of said deposition method, which is carried out without bringing said tip 113 into contact with said deposition surface 51. This can be very useful, in particular in the case where it is desired to avoid contaminating said tip 113 with a liquid already present on said deposition surface 51.
- the device 100 is positioned on the deposition surface 51, vertical to the point where it is desired to deposit a predetermined quantity of said liquid 32, as illustrated in FIG. 5A.
- a pulse of electric current l (t) is then injected into the solenoid 127 to generate a magnetic field H (t) in order to temporarily lift said tip 113 and thus open the passage 115.
- the combined effect of gravity and piston effect induced by the return of the rod 111 to its completely advanced rest position allows the detachment of a drop 61, the volume of which depends on the surface tension and the density of said liquid 32, on the wettability of the surface said rod 111, said tip 113 and said tube 101, the shape of said tip 113 and the degree of opening of said passage 115.
- the control of this last parameter makes it possible to deposit a predetermined quantity of said liquid 32.
- FIG. 7 illustrates the method for washing said device 100.
- FIG. 8 shows, in the form of a flowchart, an example of a servo-control system which makes it possible to control the degree of opening of said passage 115 during the removal and deposition of the liquid 32. For clarity, a detail of said device 100 is also shown in the figure.
- This servo-control system applies in particular when the translation system 129 makes it possible to press the point 113 against the bottom 33 or the deposition surface 51 with a constant force F, which may possibly be zero in the cases of the sampling method illustrated. in Figures 4a to 4C and the contactless deposition method illustrated in Figure 6.
- the relative position Z e of the rod 111 relative to the outer tube 101 is determined by the balance between said force F and the elastic force exerted jointly on said rod 111 by the spring 123 and the magnetic field generated by the solenoid 127:
- k r and k m (l) are the elastic constants of said spring 123 and the magnetic force, the latter being a function of the current I flowing through the solenoid 127.
- the current I is the parameter that adjusts the quantity pr lifting or trademark of said liquid 32 through the control of the degree of opening of said passage 115
- the Z value e is determined by measuring the inductance L of said solenoid 127.
- Z e is compared with the target value Z c , corresponding to the desired degree of opening of the passage 115.
- the current I is modified to increase or decrease the current I, which modifies the position Z e by means of k m (l).
- a second control system is also shown in the form of a flowchart.
- This system makes it possible to control the degree of opening of said passage 115 when the liquid 32 is withdrawn and deposited.
- a detail of said device 100 is also shown in the figure.
- This control system applies in particular when the translation system 129 makes it possible to press the tip 113 against the bottom 33 or the deposit surface 51 with an adjustable force F.
- said force F is adjustable, it can be directly used to control the degree of opening of said passage 115.
- the solenoid 127 is used only as a sensor, and not as an actuator.
- step 91 the value Z e is determined by a measurement of the inductance L of said solenoid 127.
- Z e is compared with the target value Z c , corresponding to the desired degree of opening of the passage 115.
- step 95 said adjustable force F is modified to bring Z e closer to Z c .
- the terminal part may gradually shrink or alternatively may not exist; said point may not be conical, but, for example, pyramidal, frustoconical, ellipsoidal, etc.
- hydrophilic or hydrophobic coatings can be provided: in particular, said surfaces can include a coating of a hydrophilic material such as tungsten; said surfaces may also have protective coatings; several materials can be used for the production of said devices, in particular stainless steel, plastic materials or glass; the solenoid can be replaced by any kind of electromagnetic, electrical, optical or mechanical sensors and actuators: for example, it is possible to use as sensors capacitive sensors, strain gauges, piezoelectric or potentiometric sensors, photoelectric cells, etc., and as actuators for electric motors, pneumatic, piezoelectric or thermal actuators, etc.
- the cylinder or said rod in such a case, it is not necessary for the cylinder or said rod to be made of magnetic material; said devices can also be devoid of any sensor or actuator; the solenoid can also replace the means of applying a force; in this case, the electromagnetic force replaces the elastic force the cylinder of magnetic material may be absent; in this case, if the solenoid is present, said rod must itself be made of magnetic material.
- said means for applying an elastic force can also be constituted, for example, by blocks of an elastomeric material, a beam or an elastic membrane or pneumatic devices; said means for applying a force may also be absent, in this case the weight of said rods respectively must be sufficient for said conical point to hermetically seal said opening;
- the translation system can, for example, be based on a polar coordinate system; the translation system can be controlled manually, using micrometric screws; - said devices can be filled directly by the user or they can be supplied in the form of pre-filled cartridges, intended to be discarded or returned to the manufacturer after use; this is made possible by the fact that said means for applying a force keep said opening hermetically closed and that the orifice, because of its capillary dimensions, does not allow the liquid contained in the internal volume to exit; said devices can be supplied with the orifice blocked, the opening being effected immediately before use; although isolated devices have been described, it is possible to produce a collection and deposition head composed of such devices, so as to be able to simultaneously
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Fluid-Pressure Circuits (AREA)
- Sampling And Sample Adjustment (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Coating Apparatus (AREA)
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2003/001843 WO2005007292A1 (fr) | 2003-06-17 | 2003-06-17 | Dispositif de prelevement et de depot de gouttelettes d'au moins un liquide, procede de mise en oeuvre de ce dispositif, ainsi que systeme d'asservissement pour ce procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1648610A1 true EP1648610A1 (fr) | 2006-04-26 |
| EP1648610B1 EP1648610B1 (fr) | 2008-03-05 |
Family
ID=34072985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03817510A Expired - Lifetime EP1648610B1 (fr) | 2003-06-17 | 2003-06-17 | Dispositif de prelevement et de depot de gouttelettes d'au moins un liquide, procede de mise en oeuvre de ce dispositif, ainsi que systeme d'asservissement pour ce procede |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070025880A1 (fr) |
| EP (1) | EP1648610B1 (fr) |
| AT (1) | ATE387961T1 (fr) |
| AU (1) | AU2003263245A1 (fr) |
| CA (1) | CA2533087A1 (fr) |
| DE (1) | DE60319596T2 (fr) |
| WO (1) | WO2005007292A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6855538B2 (en) * | 2001-06-27 | 2005-02-15 | The Regents Of The University Of California | High-efficiency microarray printing device |
| US7402286B2 (en) * | 2001-06-27 | 2008-07-22 | The Regents Of The University Of California | Capillary pins for high-efficiency microarray printing device |
| US7776584B2 (en) | 2003-08-01 | 2010-08-17 | Genetix Limited | Animal cell colony picking apparatus and method |
| JP4224488B2 (ja) * | 2005-11-14 | 2009-02-12 | 株式会社アイディエス | 検体分取分注用ノズル装置 |
| EP2662139A1 (fr) * | 2012-05-08 | 2013-11-13 | Roche Diagniostics GmbH | Soupape de distribution d'un fluide |
| GB2504333B (en) * | 2012-07-26 | 2016-10-05 | Ttp Labtech Ltd | Liquid dispensing device |
| DE102012214677A1 (de) * | 2012-08-17 | 2014-02-20 | Hamilton Bonaduz Ag | Pipette mit elektromotorisch angetriebenem Kolben und Magnetfeldabschirmung |
| DE102013110402A1 (de) * | 2013-09-20 | 2015-03-26 | Smart Pac Gmbh Technology Services | Anordnung und Verfahren zum reproduzierbaren Aufbringen kleiner Flüssigkeitsmengen |
| CN106582907B (zh) * | 2015-10-15 | 2021-05-18 | 常州福生生物技术有限公司 | 可自动退吸头的移液器 |
| WO2018181023A1 (fr) * | 2017-03-29 | 2018-10-04 | 京セラ株式会社 | Capillaire et pipette l'utilisant |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3807704C1 (fr) * | 1988-03-09 | 1989-01-26 | Eppendorf Geraetebau Netheler + Hinz Gmbh, 2000 Hamburg, De | |
| US5807522A (en) * | 1994-06-17 | 1998-09-15 | The Board Of Trustees Of The Leland Stanford Junior University | Methods for fabricating microarrays of biological samples |
| CA2185292A1 (fr) * | 1995-09-15 | 1997-03-16 | James C. Smith | Appareil a piston pour le soutirage et la distribution de liquide, et methode connexe |
| US6024925A (en) * | 1997-01-23 | 2000-02-15 | Sequenom, Inc. | Systems and methods for preparing low volume analyte array elements |
| US6101946A (en) * | 1997-11-21 | 2000-08-15 | Telechem International Inc. | Microarray printing device including printing pins with flat tips and exterior channel and method of manufacture |
| US6235473B1 (en) * | 1998-07-02 | 2001-05-22 | Orchid Biosciences, Inc. | Gene pen devices for array printing |
-
2003
- 2003-06-17 WO PCT/FR2003/001843 patent/WO2005007292A1/fr not_active Ceased
- 2003-06-17 AT AT03817510T patent/ATE387961T1/de not_active IP Right Cessation
- 2003-06-17 AU AU2003263245A patent/AU2003263245A1/en not_active Abandoned
- 2003-06-17 US US10/565,432 patent/US20070025880A1/en not_active Abandoned
- 2003-06-17 EP EP03817510A patent/EP1648610B1/fr not_active Expired - Lifetime
- 2003-06-17 DE DE60319596T patent/DE60319596T2/de not_active Expired - Fee Related
- 2003-06-17 CA CA002533087A patent/CA2533087A1/fr not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005007292A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070025880A1 (en) | 2007-02-01 |
| ATE387961T1 (de) | 2008-03-15 |
| EP1648610B1 (fr) | 2008-03-05 |
| DE60319596T2 (de) | 2009-04-02 |
| WO2005007292A1 (fr) | 2005-01-27 |
| CA2533087A1 (fr) | 2005-01-27 |
| DE60319596D1 (de) | 2008-04-17 |
| AU2003263245A1 (en) | 2005-02-04 |
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