EP1796838A1 - Verfahren zur durchführung einer elektrochemischen messung an einer flüssigen messprobe in einer über leitungen zugänglichen messkammer und zugehörige anordnung - Google Patents
Verfahren zur durchführung einer elektrochemischen messung an einer flüssigen messprobe in einer über leitungen zugänglichen messkammer und zugehörige anordnungInfo
- Publication number
- EP1796838A1 EP1796838A1 EP05803183A EP05803183A EP1796838A1 EP 1796838 A1 EP1796838 A1 EP 1796838A1 EP 05803183 A EP05803183 A EP 05803183A EP 05803183 A EP05803183 A EP 05803183A EP 1796838 A1 EP1796838 A1 EP 1796838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring chamber
- reagent
- reagents
- measuring
- sample
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 30
- 238000002848 electrochemical method Methods 0.000 title claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 51
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 102000004190 Enzymes Human genes 0.000 claims abstract description 10
- 108090000790 Enzymes Proteins 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000009396 hybridization Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 2
- 101100210287 Drosophila melanogaster wech gene Proteins 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000003752 polymerase chain reaction Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 238000013208 measuring procedure Methods 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 102000002260 Alkaline Phosphatase Human genes 0.000 description 1
- 108020004774 Alkaline Phosphatase Proteins 0.000 description 1
- 230000004544 DNA amplification Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 108010090804 Streptavidin Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000012742 biochemical analysis Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000000265 leukocyte Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000003753 real-time PCR Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation 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
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
-
- 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
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502707—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by the manufacture of the container or its components
-
- 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
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502723—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by venting arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/2575—Volumetric liquid transfer
Definitions
- the invention relates to a method for carrying out an electrochemical measurement on a liquid measurement sample in a measuring chamber accessible via lines, wherein at least one reagent in liquid form is supplied for the electrochemical measurement.
- the invention relates to an associated arrangement for carrying out the method and furthermore to the use of this arrangement.
- a PCR polymerase chain reaction
- amplification selective DNA amplification
- thermocycler a PCR apparatus which is suitable for quantitative PCR
- electrophoresis apparatus a hybridization station
- optical reader so-called Eppendorf Tubes
- pipetting devices several pipetting devices and a Cooling container for reagents - dependent and must be carried out by trained personnel in compliance with safety regulations with regard to risk of infection, waste disposal or the like.
- volumetric, ie precise, dosages (pipetting) of reagent solutions must be carried out.
- Devices for biochemical analysis are known from the prior art, which according to WO 02/073153 make use of, in particular, silicon-based measuring modules which can be integrated into a chip card.
- the reagents used for the analysis are already integrated in the analysis module in a dry-stored form.
- the aim of the invention is the realization of a low-cost, easy to handle, complete DNA or protein analysis process in a miniaturized cartridge. Based on this, it is an object of the present invention-particularly in such an assay, but not exclusively for this-to carry out an electrochemical measurement in a measuring chamber and, for this purpose, to carry out the measurement sample and the liquid reagents used thereby, which are brought into the measuring chamber by means of pumps. feed bubble-free. In addition, an arrangement for carrying out the method is to be created.
- the invention relates to a method with an associated arrangement for transferring liquids, in particular a sample liquid on the one hand and at least one reagent liquid on the other hand, into a measuring chamber for the purpose of electrochemical measurement, which is suitable for all liquids involved. air-free. This is particularly important when first solid reagents dissolved and so a reagent liquid is prepared.
- sample liquid and reagent liquids which are located in different lines leading to the measuring chamber and separated from each other and from the measuring chamber by air, are brought into the chamber free of air bubbles and thus the actual measurement in the measuring chamber is not disturbed.
- the measurement sample and the reagents are supplied from different sides of the measuring chamber.
- discharge channels for ventilation at the different sides of the measuring chamber are present in the relevant arrangement.
- the invention is therefore applied in particular in the subregion of the cartridge in which the actual detection takes place.
- This detection involves the enzyme-linked DNA hybridization assay.
- the hybridization event mit- labeled by an appropriate enzyme (eg, streptavidin-coupled alkaline phosphatase) and detected by measuring a product (eg, p-aminophenol) produced by the enzymatic activity.
- an appropriate enzyme eg, streptavidin-coupled alkaline phosphatase
- a product eg, p-aminophenol
- the invention can also be used for other measuring procedures on liquid samples which first have to be introduced into a measuring chamber by active pumping together with reagent solutions (eg ELISA ("enzyme-linked immunosorbent assay”) test).
- FIG. 2 shows the top view of a line with recesses for the storage of a dry reagent
- FIGS. 3, 4 show the cross section through a line with recesses for the storage of a dry reagent according to FIG. 2,
- FIG. 2 shows the top view of a line with recesses for the storage of a dry reagent
- FIG. 5 shows a first arrangement in which the lines for the reagents and the test sample are arranged on one side of the measuring chamber
- FIG. 6 shows a second arrangement in which the lines for the test sample and the reagents on different sides of the measuring chamber are arranged.
- FIG. 1 shows a cartridge 100 with a line system which is formed by the microchannels or cavities in a cartridge base body and a cover film closing off the latter.
- the cartridge 100 consists of NEN from a plastic body 101 with the microfluidic system of predetermined structures, which are described by way of example with reference to Figures 2 to 4 below.
- a sample port 102 with adjoining metering section 105 can be seen. This is followed by a channel region 110 for the cell termination and then an area 120 for the PCR. The actual PCR chamber is closed by valves 122, 122 '. The detection of the sample, in particular according to the enzyme-coupled DNA hybridization method, then takes place in the region 130.
- FIG. 1 also shows water ports 103 to 103 '' '. Furthermore, vent ports 104 to 104 '' 'are present.
- FIGS. 2 to 4 show the structure and the structure of the reagent channel 131, 131 'from FIG. 1.
- Each of recesses 132 to 132 6 ' is present, which is suitable for receiving dry reagents 133 to 133 6 'in accordance with FIG 3 are suitable.
- reference numeral 150 denotes a measuring chamber for carrying out an electrochemical measurement, in particular the so-called enzyme-coupled DNA hybridization test.
- an electrochemical measurement in particular the so-called enzyme-coupled DNA hybridization test.
- a hybridized measuring sample on the one hand and certain reagents on the other hand must be introduced into the measuring chamber.
- the actual measuring means and the means for electrical signal detection are not shown in Figures 5 and 6.
- the measuring chamber is shown in FIGS. 5 and 6 as an oval cavity 150 and has accesses on opposite sides 151 and 152, which form the interfaces to the lines.
- the measuring chamber 150 is connected via the access 151 with the Abfallka ⁇ channel Wl.
- the other access 152 is connected in the same way to the waste line W2.
- the waste lines are in contact with the environment via valves. By switching the valves, the flow direction in the fluidic system festge ⁇ sets.
- the valves have a special function if they are only permeable to air and therefore prevent contact of the environment with the reagents and the test sample.
- the sample is conveyed into the measuring chamber 150 via an external pump assigned to the cartridge 100, with any air cushion being advanced in front of the liquid, if necessary. Since the volume of the test sample is greater than that of the measuring chamber, the result is access 151 or 152 to convey the air cushion and the test sample into the waste line W1 or W2.
- a first reagent R 1 is conveyed, so that the air cushion is conveyed into one of the waste channels W 1 or W 2 without entering the measuring chamber 150. Die ⁇ this process is still referred to as venting. By switching the above-mentioned valves is achieved that the reagent then flows through the measuring chamber 150.
- sample liquid and reagent liquids which are located in different lines which lead to the measuring chamber and are separated from one another and from the measuring chamber by air, are introduced into the chamber free of air bubbles and thus the actual measurement in the measuring chamber is not disturbed.
- FIG. 6 the arrangement according to FIG. 5 is modified insofar as the sample line 161 and the lines 162 and 162 'for the reagents are arranged on opposite sides of the measuring chamber 150. Otherwise, the arrangement corresponds to the arrangement according to FIG. 1.
- the required deaeration process can be carried out.
- the arrangement allows the pumping of liquids through the measuring chamber in two directions (back and forth pumping) without the generation of negative pressure (suction). This enhances binding processes that take place within the measuring chamber.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004050576 | 2004-10-15 | ||
PCT/EP2005/011156 WO2006042734A1 (de) | 2004-10-15 | 2005-10-17 | Verfahren zur durchführung einer elektrochemischen messung an einer flüssigen messprobe in einer über leitungen zugänglichen messkammer und zugehörige anordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1796838A1 true EP1796838A1 (de) | 2007-06-20 |
EP1796838B1 EP1796838B1 (de) | 2014-10-08 |
Family
ID=35432485
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05803183.2A Ceased EP1796838B1 (de) | 2004-10-15 | 2005-10-17 | Verfahren zur durchführung einer elektrochemischen messung an einer flüssigen messprobe in einer über leitungen zugänglichen messkammer |
EP05801513A Ceased EP1807208B1 (de) | 2004-10-15 | 2005-10-17 | Anordnung zur integrierten und automatisierten dna- oder protein-analyse in einer einmal verwendbaren cartridge, herstellungsverfahren für eine solche cartridge und betriebsverfahren der dna- oder protein-analyse unter verwendung einer solchen cartridge |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05801513A Ceased EP1807208B1 (de) | 2004-10-15 | 2005-10-17 | Anordnung zur integrierten und automatisierten dna- oder protein-analyse in einer einmal verwendbaren cartridge, herstellungsverfahren für eine solche cartridge und betriebsverfahren der dna- oder protein-analyse unter verwendung einer solchen cartridge |
Country Status (5)
Country | Link |
---|---|
US (2) | US7851227B2 (de) |
EP (2) | EP1796838B1 (de) |
JP (1) | JP4546534B2 (de) |
CN (2) | CN100534619C (de) |
WO (2) | WO2006042734A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102395431A (zh) * | 2009-04-15 | 2012-03-28 | 皇家飞利浦电子股份有限公司 | 无气体流体腔室 |
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DE10140565B4 (de) * | 2001-08-18 | 2006-06-29 | Roche Diagnostics Gmbh | Vorrichtung zur Gas- oder Flüssigkeitsabscheidung aus microfluidischen Durchflusssystemen |
WO2003048736A2 (en) * | 2001-12-05 | 2003-06-12 | University Of Washington | Microfluidic device and surface decoration process for solid phase affinity binding assays |
US7122153B2 (en) * | 2003-01-08 | 2006-10-17 | Ho Winston Z | Self-contained microfluidic biochip and apparatus |
EP1716249A2 (de) * | 2003-12-31 | 2006-11-02 | Applera Corporation, Applied Biosystems Group | Quantitative amplifikation und bestimmung geringer anzahlen von zielpolynukleotiden |
DE102004021822B3 (de) * | 2004-04-30 | 2005-11-17 | Siemens Ag | Verfahren und Anordnung zur DNA-Amplifikation mittels PCR unter Einsatz von Trockenreagenzien |
DE102004021780B4 (de) * | 2004-04-30 | 2008-10-02 | Siemens Ag | Verfahren und Anordnung zur DNA-Isolierung mit Trockenreagenzien |
DE102004050510B4 (de) * | 2004-10-15 | 2012-01-12 | Siemens Ag | Verfahren zur Ventilsteuerung bei der Thermozyklisierung einer Substanz zwecks PCR und zugehörige Anordnung |
-
2005
- 2005-10-17 CN CNB2005800352122A patent/CN100534619C/zh not_active Expired - Fee Related
- 2005-10-17 EP EP05803183.2A patent/EP1796838B1/de not_active Ceased
- 2005-10-17 EP EP05801513A patent/EP1807208B1/de not_active Ceased
- 2005-10-17 JP JP2007536193A patent/JP4546534B2/ja not_active Expired - Fee Related
- 2005-10-17 WO PCT/EP2005/011156 patent/WO2006042734A1/de active Application Filing
- 2005-10-17 US US11/665,331 patent/US7851227B2/en active Active
- 2005-10-17 WO PCT/EP2005/055303 patent/WO2006042838A1/de active Application Filing
- 2005-10-17 CN CN2005800352245A patent/CN101039751B/zh not_active Expired - Fee Related
- 2005-10-17 US US11/665,380 patent/US20090130658A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2006042734A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102395431A (zh) * | 2009-04-15 | 2012-03-28 | 皇家飞利浦电子股份有限公司 | 无气体流体腔室 |
Also Published As
Publication number | Publication date |
---|---|
JP2008517259A (ja) | 2008-05-22 |
JP4546534B2 (ja) | 2010-09-15 |
EP1807208A1 (de) | 2007-07-18 |
US20090130658A1 (en) | 2009-05-21 |
CN100534619C (zh) | 2009-09-02 |
WO2006042838A1 (de) | 2006-04-27 |
CN101039751B (zh) | 2010-05-05 |
CN101039751A (zh) | 2007-09-19 |
EP1796838B1 (de) | 2014-10-08 |
CN101039750A (zh) | 2007-09-19 |
US20090136922A1 (en) | 2009-05-28 |
EP1807208B1 (de) | 2013-03-20 |
WO2006042734A1 (de) | 2006-04-27 |
US7851227B2 (en) | 2010-12-14 |
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