DE10260071A1 - Apparatus for the analysis of biological cells, contained within a fluid, has a piezo electric unit to form droplets at the outlet of the capillary vessel for delivery to the analysis system without cell damage - Google Patents
Apparatus for the analysis of biological cells, contained within a fluid, has a piezo electric unit to form droplets at the outlet of the capillary vessel for delivery to the analysis system without cell damage Download PDFInfo
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- DE10260071A1 DE10260071A1 DE10260071A DE10260071A DE10260071A1 DE 10260071 A1 DE10260071 A1 DE 10260071A1 DE 10260071 A DE10260071 A DE 10260071A DE 10260071 A DE10260071 A DE 10260071A DE 10260071 A1 DE10260071 A1 DE 10260071A1
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- 238000004458 analytical method Methods 0.000 title claims abstract description 33
- 239000012530 fluid Substances 0.000 title abstract 3
- 230000005779 cell damage Effects 0.000 title 1
- 208000037887 cell injury Diseases 0.000 title 1
- 239000007788 liquid Substances 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 51
- 238000000034 method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000010972 statistical evaluation Methods 0.000 description 3
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 239000006199 nebulizer Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007479 molecular analysis Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- B01L3/0268—Drop counters; Drop formers using pulse dispensing or spraying, eg. inkjet type, piezo actuated ejection of droplets from capillaries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/14—Mixing drops, droplets or bodies of liquid which flow together or contact each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/23—Mixing by intersecting jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
- B01F35/71791—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets using ink jet heads or cartridges, e.g. of the thermal bubble jet or piezoelectric type
-
- 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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0832—Geometry, shape and general structure cylindrical, tube shaped
- B01L2300/0838—Capillaries
-
- 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
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0433—Moving fluids with specific forces or mechanical means specific forces vibrational forces
- B01L2400/0439—Moving fluids with specific forces or mechanical means specific forces vibrational forces ultrasonic vibrations, vibrating piezo elements
-
- 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
- G01N2035/1046—Levitated, suspended drops
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Clinical Laboratory Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Dispersion Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Analyse von in einer Flüssigkeit enthaltenen biologischen Zellen.The invention relates to a device for analyzing in a liquid contained biological cells.
In der
Handelt es sich bei den Probenvolumina allerdings um Flüssigkeiten, in denen biologische Zellen vorhanden sind, versagt die vorerwähnte Methode, da durch die Überführung des. Probenvolumens in ein Plasma die in der Flüssigkeit enthaltene biologische Zelle zerstört werden würde und Aufschlüsse über die Zusammensetzung und/oder den Aufbau der Zelle, die das eigentliche Analyseziel sind, nicht möglich wären.Is the sample volume but about liquids, in which biological cells are present, the aforementioned method fails, because by the transfer of the. Sample volume in a plasma the biological contained in the liquid Cell destroyed would be and information about the Composition and / or structure of the cell that is the real thing Analysis goals are not possible would.
Allgemein werden nach dem Stand der Technik die derzeit empfindlichsten Analysen an flüssigen Proben so durchgeführt, daß die Probe durch sogen. "Nebulizer" in eine Tröpfchenwolke überführt wird. Die Tröpfchen werden dann verschiedenen Prozeduren unterworfen, d.h. sie werden bspw. in einen Plasmazustand versetzt, siehe auch oben, oder sie werden durch ein elektrisches Feld aufgeladen und anschließend z.B. durch Verdampfung verkleinert, um elektrische Ladungen auf Molekülstrukturen zu übertragen. In einem zweiten Schritt werden die entsprechend konditionierten Tropfen bspw. in ein Massenspektrometer zur Analyse der Tropfen überführt. Auf diese Weise erhält man je nach Vorbehandlung der Tropfen entweder die Elementzusammensetzung, über den Plasmazustand, oder Aussagen über die molekularen Strukturen der Probe durch Aufladung von Molekülen oder Molekülbruchstücken.In general, according to the state of the Technology currently the most sensitive analyzes on liquid samples done so that the Sample by so-called "Nebulizer" is converted into a droplet cloud. The droplet are then subjected to various procedures, i.e. you will be For example, put in a plasma state, see also above, or her are charged by an electric field and then e.g. reduced by evaporation to electrical charges on molecular structures transferred to. In a second step, the correspondingly conditioned For example, drops are transferred to a mass spectrometer for analyzing the drops. To this Way gets depending on the pretreatment of the drops, either the element composition over which Plasma state, or statements about the molecular structures of the sample by charging molecules or Molecular fragments.
Sind allerdings Analysen einzelner biologischer Zellen, die in einer Flüssigkeit enthalten sind, durchzuführen, d.h. will man Aufschluß über die biologische Struktur und die chemische Zusammensetzung intakter biologischer Zellen erhalten, versagt auch das vorbeschriebene sogen. "Nebulizer"-Verfahren.However, are analyzes of individuals biological cells contained in a liquid. do you want information about the biological structure and chemical composition intact preserved biological cells, also fails the so-called. "Nebulizer" process.
Es ist somit Aufgabe der vorliegenden Erfindung, eine Vorrichtung zu schaffen, bei der unter Beibehaltung an sich bekannter und bewährter Analysetechniken der chemischen Element- bzw. Molekülanalytik die Analyse einzelner, isolierter und intakter biologischer Zellen möglich ist, ohne daß im Zuge der Aufbereitung der Zellen bzw. der Flüssigkeit, in der die Zellen enthalten sind, d.h. gewissermaßen "schwimmen" die Zellen in ihrer biologischen und chemischen Struktur beeinträchtigt werden.It is therefore the task of the present Invention to provide a device while maintaining known and proven Analysis techniques of chemical element or molecule analysis the analysis of individual, isolated and intact biological cells possible is without In the course of the preparation of the cells or the liquid in which the cells are included, i.e. so to speak, the cells "swim" in their biological and chemical structure are affected.
Gelöst wird die Aufgabe gemäß der Erfindung durch eine Vorratseinrichtung, in der die die biologischen Zellen enthaltende Flüssigkeit aufgenommen wird, wobei ein austrittsseitiges Ende der Vorratseinrichtung mit einem piezoelektrischen Element derart versehen ist, daß es, sich unter dem Einfluß eines an das piezoelektrische Element angelegten Spannungsimpulses zusammenziehend, infolgedessen wenigstens einen Tropfen der die Zellen enthaltenden Flüssigkeit abgibt, der nachfolgend in eine Analyseeinrichtung gebbar ist.The object is achieved according to the invention through a storage facility in which the biological cells containing liquid is recorded, with an outlet-side end of the storage device is provided with a piezoelectric element such that it, itself under the influence of a contracting voltage pulse applied to the piezoelectric element, consequently at least one drop of those containing the cells liquid emits, which can subsequently be placed in an analysis device.
Der Vorteil der erfindungsgemäßen Lösung besteht darin, daß nicht Kollektive von Tröpfchen in einer Nebelwolke, wie bisher bei im Stand der Technik bekannten chemischen Element- bzw. Molekülanalyseverfahren, erzeugt werden, sondern einzelne Tröpfchen gewissermaßen als "Transportbehältnisse" für einzelne biologische Zellen erzeugt werden, die dann einer Analyse in einer Analyseeinrichtung unterzogen werden können, die an sich nach bekannten analytischen Prinzipien betrieben wird. Es ist also erfindungsgemäß tatsächlich möglich, wie aufgaben gemäß angestrebt, einzelne isolierte biologische Zellen zu analysieren.The advantage of the solution according to the invention is in that not Droplet collectives in a cloud of fog, as previously known in the prior art chemical element or molecular analysis methods, are generated, but rather individual droplets as "transport containers" for individuals biological cells are generated, which are then analyzed in a Analysis device can be subjected, which are known per se analytical principles. It is therefore actually possible according to the invention how aspired to tasks, analyze individual isolated biological cells.
Ein weiterer wesentlicher Vorteil ist, daß das piezoelektrische Element bei der erfindungsgemäßen Vorrichtung einen hochpräzise arbeitenden und hochpräzise steuerbaren Tröpfchengenerator darstellt. Das piezoelektrische Element zieht sich unter dem Einfluß eines Spannungsimpulses in Abhängigkeit der Länge des Spannungsimpulses ruckartig zusammen bzw. gibt bei elektrisch inversen Impulsen entsprechend der Länge des Spannungsimpulses ein entsprechendes Tropfenvolumen ab. Entsprechend einer vorbestimmbaren Wiederholungsrate der Spannungsimpulse kann eine Folge von Tropfen mit zeitlich vorwählbaren Abständen zwischen den Tropfen hergestellt werden, wodurch eine Analyse der Einzeltropfen und deren Auswertung möglich ist und nach entsprechender Speicherung der Analyseergebnisse ebenfalls eine statistische Bewertung der Analyseergebnisse möglich ist.Another major advantage is that the piezoelectric Element in the device according to the invention a highly precise working and highly precise controllable droplet generator represents. The piezoelectric element pulls under the influence of a Voltage pulse depending the length of the voltage pulse jerkily together or gives electrical inverse pulses corresponding to the length of the voltage pulse corresponding drop volume. According to a predeterminable Repetition rate of the voltage impulses can be a sequence of drops preselectable intervals be produced between the drops, making an analysis of the Individual drops and their evaluation is possible and after appropriate Storage of the analysis results also a statistical evaluation of the analysis results possible is.
Mittels einer statistischen Auswertung der Signale einer ausreichend großen Zahl von Tropfen können vereinzelte Zellen immer dann und nur dann mit ausreichender Sicherheit bzw. mit einem angemessenen kleinen Fehler analysiert werden, wenn die Zahl der Zellen in Tropfen klein ist, d.h. daß vorteilhafterweise der Tropfen keine oder eine ganzzahlige Zahl von Zellen enthält, wobei vorzugsweise die Zahl der Zellen pro Tropfen < 5 ist.Using a statistical evaluation the signals of a sufficiently large number of drops can be isolated Cells always and only then with sufficient security or be analyzed with a reasonable small error if the Number of cells in drops is small, i.e. that advantageously the drop contains no or an integer number of cells, preferably the number of cells per drop <5 is.
Durch das Anlegen eines geeignet polarisierten Spannungsimpulses kann das piezoelektrische Element auch gewissermaßen als Pumpe betrieben werden, indem es sich nämlich unter dem Einfluß des Spannungsimpulses rückartig zusammenzieht, so daß sowohl eine Pumpe als auch ein Tropfengenerator geschaffen wird. Bei dieser Betriebs weise ist somit die Vorratseinrichtung durch Unterdruck mit der Flüssigkeit, in der die Zellen enthalten sind, befüllbar, es ist aber auch möglich, die Vorratseinrichtung bspw. als Kapillare auszubilden, so daß diese mit der die Zellen enthaltenden Flüssigkeit befüllt wird. Die Vorratseinrichtung ist in diesem Fall vorzugsweise ein kapillares Gefäß.By applying a suitably polarized voltage pulse, the piezoelectric element can also be operated to a certain extent as a pump by contracting backwards under the influence of the voltage pulse, so that both a pump and a drop generator are created. In this mode of operation is so with the storage device can be filled with negative pressure with the liquid in which the cells are contained, but it is also possible to design the storage device as a capillary, for example, so that it is filled with the liquid containing the cells. In this case, the storage device is preferably a capillary vessel.
Als Analyseeinrichtung können alle geeigneten Analyseeinrichtungen, wie sie für die Ausführung bekannter Analysemethoden im Stand der Technik bekannt sind und verwendet werden, herangezogen werden. Vorzugsweise ist die mit der Erfindung zusammenwirkende Analyseeinrichtung jedoch ein Massenspektrometer.As an analysis device, everyone can suitable analysis facilities, such as those used to carry out known analysis methods are known and used in the prior art. The analysis device interacting with the invention is preferably however, a mass spectrometer.
Für bestimmte Analyseschritte kann es notwendig sein, in dem gem. der Vorrichtung erzeugten Tropfen, der die Zelle enthält, bestimmte Reaktionen durchzuführen, bspw. das gezielte Platzen der Zellwände zu induzieren. Dazu eignet sich eine weitere Ausgestaltung der Vorrichtung auf ganz besonders vorteilhafte Weise, indem nämlich wenigstens zwei Vorratseinrichtungen vorgesehen sind, an denen an deren jeweiligen austrittsseitigen Enden das piezoelektrische Element derart angeordnet ist, daß es, sich unter dem Einfluß eines jeweils an die piezoelektrischen Elemente angelegten Spannungsimpulses zusammenziehend, infolgedessen bei einer Vorratseinrichtung einen Tropfen der die Zelle enthaltenden Flüssigkeit und bei der anderen Vorratseinrichtung einen Tropfen einer vorbestimmten Flüssigkeitszusammensetzung abgibt, wobei der die Zelle enthaltende Tropfen und der Tropfen aus der vorbestimmten Flüssigkeitszusammensetzung vor Eintritt in die Analyseeinrichtung zu einem Tropfen vereinigt werden.For certain analysis steps may be necessary in which the Device generated drops containing the cell determined Carry out reactions For example, to induce the targeted bursting of the cell walls. Suitable for this Another embodiment of the device is particularly advantageous Way by namely at least two storage facilities are provided, on which at their the respective outlet ends of the piezoelectric element is arranged in such a way that yourself under the influence of a voltage pulse applied to each of the piezoelectric elements contracting, consequently one at a storage facility Drop of the liquid containing the cell and the other Storage device a drop of a predetermined liquid composition emits, the drop containing the cell and the drop from the predetermined liquid composition combined into a drop before entering the analysis device become.
Bei dieser vorteilhaften Weiterbildung der Vorrichtung wird der die Zelle enthaltende Tropfen mit einem weiteren Tropfen quasi beschossen, wobei der zweite Tropfen vorbestimmte Stoffe enthalten kann bzw. Ladungen transportieren kann, die in dem die Zelle enthaltenden Tropfen, wie angestrebt, eine geeignete, gewünschte Reaktion, wie bspw. das Platzen der Zellwände usw., auslösen.With this advantageous development the device contains the drop containing the cell with a Another drop is shot at, the second drop predetermined May contain substances or can transport loads that are in the drop containing the cell, as desired, a suitable, desired Trigger a reaction, such as the bursting of the cell walls, etc.
Die Erfindung wird nachfolgend unter Bezugnahme auf die beigefügten schematischen Zeichnungen anhand eines Ausführungsbeispieles und anhand eines modifizierten Ausführungsbeispieles im einzelnen beschrieben. Darin zeigen:The invention is described below Reference to the attached schematic drawings using an exemplary embodiment and of a modified embodiment described in detail. In it show:
Die Erfindung wird nun zunächst unter
Bezugnahme auf die
Die Vorrichtung
Es sei noch darauf hingewiesen, daß ein Flüssigkeitsvorrat
In
Durch Anlegen eines geeignet langen
und eines geeignet polarisierten Spannungsimpulses
Hervorzuheben ist, daß die die
Zellen
Die von der Analyseeinrichtung gelieferten Analyseergebnisse,
was sowohl für
die Vorrichtung
Im Falle einer Reihe gleichartiger
Zellen
- 1010
- Vorrichtungcontraption
- 1111
- Flüssigkeitliquid
- 110110
- Flüssigkeitliquid
- 1212
- biologische Zellenbiological cell
- 1313
- Vorratseinrichtungstocker
- 130130
- Vorratseinrichtungstocker
- 1414
- Auslaß/EinlaßOutlet / inlet
- 140140
- Auslaß/EinlaßOutlet / inlet
- 1515
- austrittsseitiges Endeexit side The End
- 150150
- austrittsseitiges Endeexit side The End
- 1616
- piezoelektrisches Elementpiezoelectric element
- 160160
- piezoelektrisches Elementpiezoelectric element
- 1717
- Spannungsimpulsvoltage pulse
- 170170
- Spannungsimpulsvoltage pulse
- 1818
- Tropfendrops
- 180180
- Tropfendrops
- 1919
- Analyseeinrichtunganalyzer
- 2020
- Flüssigkeitsvorratliquid storage
- 2121
- Tropfen (verschmoldrops (verschmol
- zener)zener)
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260071A DE10260071A1 (en) | 2002-12-19 | 2002-12-19 | Apparatus for the analysis of biological cells, contained within a fluid, has a piezo electric unit to form droplets at the outlet of the capillary vessel for delivery to the analysis system without cell damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260071A DE10260071A1 (en) | 2002-12-19 | 2002-12-19 | Apparatus for the analysis of biological cells, contained within a fluid, has a piezo electric unit to form droplets at the outlet of the capillary vessel for delivery to the analysis system without cell damage |
Publications (1)
Publication Number | Publication Date |
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DE10260071A1 true DE10260071A1 (en) | 2004-07-08 |
Family
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DE10260071A Ceased DE10260071A1 (en) | 2002-12-19 | 2002-12-19 | Apparatus for the analysis of biological cells, contained within a fluid, has a piezo electric unit to form droplets at the outlet of the capillary vessel for delivery to the analysis system without cell damage |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014154501A1 (en) * | 2013-03-25 | 2014-10-02 | Thermo Electron Manufacturing Limited | Apparatus and method for mixing a liquid sample to be introduced in an analysis device |
EP2444147A4 (en) * | 2009-06-16 | 2015-10-07 | Sony Corp | Substance mixing device and substance mixing method |
WO2016096054A1 (en) * | 2014-12-19 | 2016-06-23 | Ecole Polytechnique Federale De Lausanne (Epfl) | Method and device for mixing two streams of droplets |
US9804183B2 (en) | 2013-03-25 | 2017-10-31 | Thermo Electron Manufacturing Limited | Apparatus and method for liquid sample introduction |
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US5013660A (en) * | 1983-10-13 | 1991-05-07 | Science And Technology Agency | Method of implanting living cells with a foreign substance |
WO1999021720A1 (en) * | 1997-10-27 | 1999-05-06 | The Board Of Trustees Of The Leland Stanford Juni Or University | Universal fluid droplet ejector |
US6192768B1 (en) * | 1995-06-21 | 2001-02-27 | Pharmacia Biotech Ab | Flow-through sampling cell and use thereof |
US6200013B1 (en) * | 1997-12-26 | 2001-03-13 | Ngk Insulators, Ltd. | Process for uniformly mixing materials and apparatus therefor |
US10033380B2 (en) * | 2014-07-21 | 2018-07-24 | Sanechips Technology Co., Ltd | Control circuit and terminal |
-
2002
- 2002-12-19 DE DE10260071A patent/DE10260071A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5013660A (en) * | 1983-10-13 | 1991-05-07 | Science And Technology Agency | Method of implanting living cells with a foreign substance |
US6192768B1 (en) * | 1995-06-21 | 2001-02-27 | Pharmacia Biotech Ab | Flow-through sampling cell and use thereof |
WO1999021720A1 (en) * | 1997-10-27 | 1999-05-06 | The Board Of Trustees Of The Leland Stanford Juni Or University | Universal fluid droplet ejector |
US6200013B1 (en) * | 1997-12-26 | 2001-03-13 | Ngk Insulators, Ltd. | Process for uniformly mixing materials and apparatus therefor |
US10033380B2 (en) * | 2014-07-21 | 2018-07-24 | Sanechips Technology Co., Ltd | Control circuit and terminal |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2444147A4 (en) * | 2009-06-16 | 2015-10-07 | Sony Corp | Substance mixing device and substance mixing method |
WO2014154501A1 (en) * | 2013-03-25 | 2014-10-02 | Thermo Electron Manufacturing Limited | Apparatus and method for mixing a liquid sample to be introduced in an analysis device |
CN105190282A (en) * | 2013-03-25 | 2015-12-23 | 赛默电子制造有限公司 | Apparatus and method for mixing a liquid sample to be introduced in an analysis device |
US9541479B2 (en) | 2013-03-25 | 2017-01-10 | Thermo Electron Manufacturing Limited | Apparatus and method for liquid sample introduction |
US9804183B2 (en) | 2013-03-25 | 2017-10-31 | Thermo Electron Manufacturing Limited | Apparatus and method for liquid sample introduction |
WO2016096054A1 (en) * | 2014-12-19 | 2016-06-23 | Ecole Polytechnique Federale De Lausanne (Epfl) | Method and device for mixing two streams of droplets |
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