Biosensor with compartmentalised reaction and measurement chamber attachment

Disposable bio-sensor test strip has a bonded structure forming channels, and a reaction/measurement chamber which is positioned over the sensitive surfaces, and taking defined sample volumes. The bio-sensor, as a flat sensor or test strip (1a), has an upper compartment structure (2). It has a sampl...

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Main Authors KOPINKE, HOLM, HELLMICH, R, WEDIG, HEIKO, HAENSLER, MARIONHABIL, GRUENDIG, BERND DR
Format Patent
LanguageEnglish
French
German
Published 28.01.2004
Edition7
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Abstract Disposable bio-sensor test strip has a bonded structure forming channels, and a reaction/measurement chamber which is positioned over the sensitive surfaces, and taking defined sample volumes. The bio-sensor, as a flat sensor or test strip (1a), has an upper compartment structure (2). It has a sample holding channel (3) with a surfactant on its inner surface or porous hydrophilic filling and an inflow opening, a reaction/measurement chamber (4) where the mean cross section is at least twice as deep and/or wide as the sample channel, and an enzyme or enzyme system which recognizes the analyte, together with an electron mediator. A sample stop channel (5) with hydrophobic surface coating or porous filling material has a mean cross section which is at lest half as deep and/or wide as the outlet opening from the reaction/measurement chamber. The sample collector zone (6) has a large volume capacity with a mean cross section at least twice as deep and/or wide as the stop channel. The channels and chamber are all interconnected. The structure is irreversibly bonded to the sensor or test strip so that the reaction/measurement chamber is placed over the sensitive surfaces (1b,1d) of the sensor or test strip. The sample holding and stop channels have a volume capacity of 0.005-0.05 microliters, the reaction/measurement chamber holds 0.1-1.0 microliters and the sample collector zone has a larger volume of at least 10 microliters. Die Erfindung betrifft einen Biosensor, der aus einem planaren Sensor oder Teststreifen (1) und einem kompartimentierten Reaktions- und Messkammeraufsatz (2) besteht, die form- und kraftschlüssig miteinander verbunden sind. Der Biosensor besitzt streng reproduzierbare, kostengünstige und massenproduktionsfähige Eigenschaften zur Ausmessung von Substanzen oder Enzymaktivitäten in geringsten Probevolumina. Für den erfindungsgemäßen Biosensor mit Reaktions- und Messkammeraufsatz (2) wird ein zweifach oder mehrfach durch Kanäle kompartimentierter Reaktions- und Messkammeraufsatz (2), vorzugsweise aus Kunststoff, mit einer Innengeometrietiefe im Mikrometerbereich genutzt, der photolithographisch, mittels Laserstrukturierung, im Mikrospritzguss-, im Tiefzieh- oder Heißprägeverfahren hergestellt wird. In seinen Ausführungsformen wird der Formkörper aus Kunststoff mit der planaren Oberfläche des Sensors (1) irreversibel verbunden. Aufgrund seiner inneren Geometrie und Oberflächenbeschichtung erfolgt eine definierte Probeaufnahme, ein kontrolliertes Beschleunigen, Verzögern oder Abstoppen des Probeflusses.
AbstractList Disposable bio-sensor test strip has a bonded structure forming channels, and a reaction/measurement chamber which is positioned over the sensitive surfaces, and taking defined sample volumes. The bio-sensor, as a flat sensor or test strip (1a), has an upper compartment structure (2). It has a sample holding channel (3) with a surfactant on its inner surface or porous hydrophilic filling and an inflow opening, a reaction/measurement chamber (4) where the mean cross section is at least twice as deep and/or wide as the sample channel, and an enzyme or enzyme system which recognizes the analyte, together with an electron mediator. A sample stop channel (5) with hydrophobic surface coating or porous filling material has a mean cross section which is at lest half as deep and/or wide as the outlet opening from the reaction/measurement chamber. The sample collector zone (6) has a large volume capacity with a mean cross section at least twice as deep and/or wide as the stop channel. The channels and chamber are all interconnected. The structure is irreversibly bonded to the sensor or test strip so that the reaction/measurement chamber is placed over the sensitive surfaces (1b,1d) of the sensor or test strip. The sample holding and stop channels have a volume capacity of 0.005-0.05 microliters, the reaction/measurement chamber holds 0.1-1.0 microliters and the sample collector zone has a larger volume of at least 10 microliters. Die Erfindung betrifft einen Biosensor, der aus einem planaren Sensor oder Teststreifen (1) und einem kompartimentierten Reaktions- und Messkammeraufsatz (2) besteht, die form- und kraftschlüssig miteinander verbunden sind. Der Biosensor besitzt streng reproduzierbare, kostengünstige und massenproduktionsfähige Eigenschaften zur Ausmessung von Substanzen oder Enzymaktivitäten in geringsten Probevolumina. Für den erfindungsgemäßen Biosensor mit Reaktions- und Messkammeraufsatz (2) wird ein zweifach oder mehrfach durch Kanäle kompartimentierter Reaktions- und Messkammeraufsatz (2), vorzugsweise aus Kunststoff, mit einer Innengeometrietiefe im Mikrometerbereich genutzt, der photolithographisch, mittels Laserstrukturierung, im Mikrospritzguss-, im Tiefzieh- oder Heißprägeverfahren hergestellt wird. In seinen Ausführungsformen wird der Formkörper aus Kunststoff mit der planaren Oberfläche des Sensors (1) irreversibel verbunden. Aufgrund seiner inneren Geometrie und Oberflächenbeschichtung erfolgt eine definierte Probeaufnahme, ein kontrolliertes Beschleunigen, Verzögern oder Abstoppen des Probeflusses.
Author GRUENDIG, BERND DR
HAENSLER, MARIONHABIL
WEDIG, HEIKO
HELLMICH, R
KOPINKE, HOLM
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DocumentTitleAlternate Biocapteur avec un accessoire compartimenté comprenant une chambre de réaction et de mesure
Biosensor mit kompartimentiertem Reaktions- und Messkammeraufsatz
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Snippet Disposable bio-sensor test strip has a bonded structure forming channels, and a reaction/measurement chamber which is positioned over the sensitive surfaces,...
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SubjectTerms BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS OR TEST PAPERS THEREFOR
CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES
ENZYMOLOGY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PHYSICS
PROCESSES OF PREPARING SUCH COMPOSITIONS
SPIRITS
TESTING
VINEGAR
WINE
Title Biosensor with compartmentalised reaction and measurement chamber attachment
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