DE69323205T2 - Gasdurchlässige Membranen für amperometrische Gaselektroden und deren Gebrauch - Google Patents

Gasdurchlässige Membranen für amperometrische Gaselektroden und deren Gebrauch

Info

Publication number
DE69323205T2
DE69323205T2 DE69323205T DE69323205T DE69323205T2 DE 69323205 T2 DE69323205 T2 DE 69323205T2 DE 69323205 T DE69323205 T DE 69323205T DE 69323205 T DE69323205 T DE 69323205T DE 69323205 T2 DE69323205 T2 DE 69323205T2
Authority
DE
Germany
Prior art keywords
gas
pct
amperometric
permeable membranes
electrodes
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.)
Expired - Fee Related
Application number
DE69323205T
Other languages
English (en)
Other versions
DE69323205D1 (de
Inventor
Jordis Tietje-Girault
Brian Jeffrey Seddon
Jerome Francis Mcaleer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecossensors Ltd
Original Assignee
Ecossensors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ecossensors Ltd filed Critical Ecossensors Ltd
Application granted granted Critical
Publication of DE69323205D1 publication Critical patent/DE69323205D1/de
Publication of DE69323205T2 publication Critical patent/DE69323205T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403Cells and electrode assemblies
    • G01N27/404Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/001Enzyme electrodes
    • C12Q1/002Electrode membranes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28Electrolytic cell components
    • G01N27/30Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
    • G01N27/3271Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
DE69323205T 1992-10-07 1993-10-06 Gasdurchlässige Membranen für amperometrische Gaselektroden und deren Gebrauch Expired - Fee Related DE69323205T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929221099A GB9221099D0 (en) 1992-10-07 1992-10-07 Improvements in and relating to gas permeable membranes for amperometric gas electrodes
PCT/GB1993/002076 WO1994008236A1 (en) 1992-10-07 1993-10-06 Gas permeable membranes for amperometric gas electrodes and uses thereof

Publications (2)

Publication Number Publication Date
DE69323205D1 DE69323205D1 (de) 1999-03-04
DE69323205T2 true DE69323205T2 (de) 1999-07-08

Family

ID=10723108

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323205T Expired - Fee Related DE69323205T2 (de) 1992-10-07 1993-10-06 Gasdurchlässige Membranen für amperometrische Gaselektroden und deren Gebrauch

Country Status (7)

Country Link
US (1) US5575930A (de)
EP (1) EP0663999B1 (de)
AT (1) ATE176047T1 (de)
CA (1) CA2146246A1 (de)
DE (1) DE69323205T2 (de)
GB (1) GB9221099D0 (de)
WO (1) WO1994008236A1 (de)

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434832A1 (de) 1994-09-29 1996-04-04 Bosch Gmbh Robert Verfahren zur Herstellung eines integriert optischen Deckelbauteils, integriert optisches Deckelbauteil, Verfahren zur Herstellung eines integriert optischen Bauteils mit einem integriert optischen Deckelbauteil und integriert optisches Bauteil mit einem integriert optischen Deckelbauteil
DE19517087A1 (de) * 1995-05-15 1996-11-21 Bosch Gmbh Robert Gußrahmen, Verfahren zur Herstellung eines mikrostrukturierten Körpers, mikrostrukturierter Körper, Verfahren zur Herstellung eines integriert-optischen Bauteils und integriert-optisches Bauteil
US5800724A (en) * 1996-02-14 1998-09-01 Fort James Corporation Patterned metal foil laminate and method for making same
DE19608667C2 (de) * 1996-03-06 2001-02-15 Harting Elektrooptische Bauteile Gmbh & Co Kg Einrichtung zur Abformung eines Mikrostruktursubstrates
DE19642088A1 (de) * 1996-10-12 1998-04-16 Bosch Gmbh Robert Verfahren zur Herstellung eines mikrostrukturierten Körpers, eines Gußrahmens und eines integriert-optischen Bauteils
GB9624686D0 (en) * 1996-11-27 1997-01-15 Cole Polytechnique Fudurale De Surface patterning of affinity reagents
US8527026B2 (en) 1997-03-04 2013-09-03 Dexcom, Inc. Device and method for determining analyte levels
US7657297B2 (en) 2004-05-03 2010-02-02 Dexcom, Inc. Implantable analyte sensor
US6001067A (en) 1997-03-04 1999-12-14 Shults; Mark C. Device and method for determining analyte levels
US7192450B2 (en) 2003-05-21 2007-03-20 Dexcom, Inc. Porous membranes for use with implantable devices
US6862465B2 (en) 1997-03-04 2005-03-01 Dexcom, Inc. Device and method for determining analyte levels
US20050033132A1 (en) 1997-03-04 2005-02-10 Shults Mark C. Analyte measuring device
US8688188B2 (en) 1998-04-30 2014-04-01 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US8346337B2 (en) 1998-04-30 2013-01-01 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US6175752B1 (en) 1998-04-30 2001-01-16 Therasense, Inc. Analyte monitoring device and methods of use
US8480580B2 (en) 1998-04-30 2013-07-09 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US8465425B2 (en) 1998-04-30 2013-06-18 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US6949816B2 (en) 2003-04-21 2005-09-27 Motorola, Inc. Semiconductor component having first surface area for electrically coupling to a semiconductor chip and second surface area for electrically coupling to a substrate, and method of manufacturing same
US8974386B2 (en) 1998-04-30 2015-03-10 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US9066695B2 (en) 1998-04-30 2015-06-30 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
DE19925921A1 (de) * 1999-06-07 2000-12-28 Siemens Ag Verfahren und Gassensor zur Bestimmung des Sauerstoff-Partialdrucks
US20050103624A1 (en) 1999-10-04 2005-05-19 Bhullar Raghbir S. Biosensor and method of making
US6645359B1 (en) * 2000-10-06 2003-11-11 Roche Diagnostics Corporation Biosensor
US6662439B1 (en) 1999-10-04 2003-12-16 Roche Diagnostics Corporation Laser defined features for patterned laminates and electrodes
US7073246B2 (en) * 1999-10-04 2006-07-11 Roche Diagnostics Operations, Inc. Method of making a biosensor
DE10014667C1 (de) * 2000-03-24 2001-10-18 Envitec Wismar Gmbh Verfahren zur Herstellung von Gasdiffusionsmembranen durch partielle Laserverdampfung
US6540890B1 (en) * 2000-11-01 2003-04-01 Roche Diagnostics Corporation Biosensor
US6560471B1 (en) 2001-01-02 2003-05-06 Therasense, Inc. Analyte monitoring device and methods of use
US7041468B2 (en) 2001-04-02 2006-05-09 Therasense, Inc. Blood glucose tracking apparatus and methods
US6702857B2 (en) 2001-07-27 2004-03-09 Dexcom, Inc. Membrane for use with implantable devices
US20030032874A1 (en) 2001-07-27 2003-02-13 Dexcom, Inc. Sensor head for use with implantable devices
US6814844B2 (en) 2001-08-29 2004-11-09 Roche Diagnostics Corporation Biosensor with code pattern
US7379765B2 (en) 2003-07-25 2008-05-27 Dexcom, Inc. Oxygen enhancing membrane systems for implantable devices
US7828728B2 (en) 2003-07-25 2010-11-09 Dexcom, Inc. Analyte sensor
US7613491B2 (en) 2002-05-22 2009-11-03 Dexcom, Inc. Silicone based membranes for use in implantable glucose sensors
US8010174B2 (en) 2003-08-22 2011-08-30 Dexcom, Inc. Systems and methods for replacing signal artifacts in a glucose sensor data stream
US8364229B2 (en) 2003-07-25 2013-01-29 Dexcom, Inc. Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise
US9247901B2 (en) 2003-08-22 2016-02-02 Dexcom, Inc. Systems and methods for replacing signal artifacts in a glucose sensor data stream
US8260393B2 (en) 2003-07-25 2012-09-04 Dexcom, Inc. Systems and methods for replacing signal data artifacts in a glucose sensor data stream
US9282925B2 (en) 2002-02-12 2016-03-15 Dexcom, Inc. Systems and methods for replacing signal artifacts in a glucose sensor data stream
US6866758B2 (en) 2002-03-21 2005-03-15 Roche Diagnostics Corporation Biosensor
US7226978B2 (en) 2002-05-22 2007-06-05 Dexcom, Inc. Techniques to improve polyurethane membranes for implantable glucose sensors
US20040140228A1 (en) * 2003-01-16 2004-07-22 Avinash Dalmia Method for determining an amount of a component in a mixture without calibration
US7134999B2 (en) 2003-04-04 2006-11-14 Dexcom, Inc. Optimized sensor geometry for an implantable glucose sensor
US7875293B2 (en) 2003-05-21 2011-01-25 Dexcom, Inc. Biointerface membranes incorporating bioactive agents
US8148164B2 (en) 2003-06-20 2012-04-03 Roche Diagnostics Operations, Inc. System and method for determining the concentration of an analyte in a sample fluid
WO2004113901A1 (en) 2003-06-20 2004-12-29 Roche Diagnostics Gmbh Test strip with slot vent opening
US8679853B2 (en) 2003-06-20 2014-03-25 Roche Diagnostics Operations, Inc. Biosensor with laser-sealed capillary space and method of making
US8071030B2 (en) 2003-06-20 2011-12-06 Roche Diagnostics Operations, Inc. Test strip with flared sample receiving chamber
US8423113B2 (en) 2003-07-25 2013-04-16 Dexcom, Inc. Systems and methods for processing sensor data
WO2007120442A2 (en) 2003-07-25 2007-10-25 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
US9763609B2 (en) 2003-07-25 2017-09-19 Dexcom, Inc. Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise
EP1649260A4 (de) 2003-07-25 2010-07-07 Dexcom Inc Elektrodensysteme für elektochemische sensoren
US7774145B2 (en) 2003-08-01 2010-08-10 Dexcom, Inc. Transcutaneous analyte sensor
US20190357827A1 (en) 2003-08-01 2019-11-28 Dexcom, Inc. Analyte sensor
US8275437B2 (en) 2003-08-01 2012-09-25 Dexcom, Inc. Transcutaneous analyte sensor
US8845536B2 (en) 2003-08-01 2014-09-30 Dexcom, Inc. Transcutaneous analyte sensor
US7591801B2 (en) 2004-02-26 2009-09-22 Dexcom, Inc. Integrated delivery device for continuous glucose sensor
US7494465B2 (en) 2004-07-13 2009-02-24 Dexcom, Inc. Transcutaneous analyte sensor
US7778680B2 (en) 2003-08-01 2010-08-17 Dexcom, Inc. System and methods for processing analyte sensor data
US8160669B2 (en) 2003-08-01 2012-04-17 Dexcom, Inc. Transcutaneous analyte sensor
US8761856B2 (en) 2003-08-01 2014-06-24 Dexcom, Inc. System and methods for processing analyte sensor data
US20080119703A1 (en) 2006-10-04 2008-05-22 Mark Brister Analyte sensor
US20100168542A1 (en) 2003-08-01 2010-07-01 Dexcom, Inc. System and methods for processing analyte sensor data
US7920906B2 (en) 2005-03-10 2011-04-05 Dexcom, Inc. System and methods for processing analyte sensor data for sensor calibration
US8233959B2 (en) 2003-08-22 2012-07-31 Dexcom, Inc. Systems and methods for processing analyte sensor data
US20140121989A1 (en) 2003-08-22 2014-05-01 Dexcom, Inc. Systems and methods for processing analyte sensor data
WO2005051170A2 (en) 2003-11-19 2005-06-09 Dexcom, Inc. Integrated receiver for continuous analyte sensor
US9247900B2 (en) 2004-07-13 2016-02-02 Dexcom, Inc. Analyte sensor
US8364231B2 (en) 2006-10-04 2013-01-29 Dexcom, Inc. Analyte sensor
US8423114B2 (en) 2006-10-04 2013-04-16 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
US11633133B2 (en) 2003-12-05 2023-04-25 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
DE602004029092D1 (de) 2003-12-05 2010-10-21 Dexcom Inc Kalibrationsmethoden für einen kontinuierlich arbeitenden analytsensor
WO2005057173A2 (en) 2003-12-08 2005-06-23 Dexcom, Inc. Systems and methods for improving electrochemical analyte sensors
EP2316331B1 (de) 2003-12-09 2016-06-29 Dexcom, Inc. Signalverarbeitung in einem durchgehenden Analytsensor
US7637868B2 (en) 2004-01-12 2009-12-29 Dexcom, Inc. Composite material for implantable device
US8808228B2 (en) 2004-02-26 2014-08-19 Dexcom, Inc. Integrated medicament delivery device for use with continuous analyte sensor
US8277713B2 (en) 2004-05-03 2012-10-02 Dexcom, Inc. Implantable analyte sensor
US8792955B2 (en) 2004-05-03 2014-07-29 Dexcom, Inc. Transcutaneous analyte sensor
US8565848B2 (en) 2004-07-13 2013-10-22 Dexcom, Inc. Transcutaneous analyte sensor
US8452368B2 (en) 2004-07-13 2013-05-28 Dexcom, Inc. Transcutaneous analyte sensor
US20060270922A1 (en) 2004-07-13 2006-11-30 Brauker James H Analyte sensor
US7783333B2 (en) 2004-07-13 2010-08-24 Dexcom, Inc. Transcutaneous medical device with variable stiffness
US7857760B2 (en) 2004-07-13 2010-12-28 Dexcom, Inc. Analyte sensor
US7713574B2 (en) 2004-07-13 2010-05-11 Dexcom, Inc. Transcutaneous analyte sensor
US8133178B2 (en) 2006-02-22 2012-03-13 Dexcom, Inc. Analyte sensor
US8744546B2 (en) 2005-05-05 2014-06-03 Dexcom, Inc. Cellulosic-based resistance domain for an analyte sensor
SE528760C2 (sv) 2005-05-18 2007-02-13 Secure Logistics Sweden Ab Metod och anordning för detektering av intrång i eller manipulation av innehållet i en inneslutning
US7510985B1 (en) 2005-10-26 2009-03-31 Lpkf Laser & Electronics Ag Method to manufacture high-precision RFID straps and RFID antennas using a laser
US7920907B2 (en) 2006-06-07 2011-04-05 Abbott Diabetes Care Inc. Analyte monitoring system and method
US20200037874A1 (en) 2007-05-18 2020-02-06 Dexcom, Inc. Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise
US20080306434A1 (en) 2007-06-08 2008-12-11 Dexcom, Inc. Integrated medicament delivery device for use with continuous analyte sensor
EP4159114B1 (de) 2007-10-09 2024-04-10 DexCom, Inc. Integriertes insulin-abgabesystem mit kontinuierlichem glucosesensor
US8417312B2 (en) 2007-10-25 2013-04-09 Dexcom, Inc. Systems and methods for processing sensor data
DE102008009185A1 (de) 2008-02-15 2009-09-24 Siemens Aktiengesellschaft Einrichtung und Verfahren zum Nachweis von Flüssigkeiten oder Substanzen aus Flüssigkeiten sowie Verwendung der Einrichtung
US8229535B2 (en) 2008-02-21 2012-07-24 Dexcom, Inc. Systems and methods for blood glucose monitoring and alert delivery
US8682408B2 (en) 2008-03-28 2014-03-25 Dexcom, Inc. Polymer membranes for continuous analyte sensors
US11730407B2 (en) 2008-03-28 2023-08-22 Dexcom, Inc. Polymer membranes for continuous analyte sensors
US8583204B2 (en) 2008-03-28 2013-11-12 Dexcom, Inc. Polymer membranes for continuous analyte sensors
US8560039B2 (en) 2008-09-19 2013-10-15 Dexcom, Inc. Particle-containing membrane and particulate electrode for analyte sensors
EP2697650B1 (de) 2011-04-15 2020-09-30 Dexcom, Inc. Erweiterte analytsensorkalibrierung und fehlererkennung
US10913064B2 (en) 2014-04-16 2021-02-09 Abbott Laboratories Droplet actuator fabrication apparatus, systems, and related methods
EP3240634A1 (de) 2014-12-31 2017-11-08 Abbott Laboratories Digitaler mikrofluidischer verdünner, systeme und zugehörige verfahren
US10620151B2 (en) 2016-08-30 2020-04-14 Analog Devices Global Electrochemical sensor, and a method of forming an electrochemical sensor
US11268927B2 (en) 2016-08-30 2022-03-08 Analog Devices International Unlimited Company Electrochemical sensor, and a method of forming an electrochemical sensor
EP3700416B1 (de) 2017-10-24 2024-06-26 Dexcom, Inc. Vorverbundene analytsensoren
US11331022B2 (en) 2017-10-24 2022-05-17 Dexcom, Inc. Pre-connected analyte sensors
US11022579B2 (en) 2018-02-05 2021-06-01 Analog Devices International Unlimited Company Retaining cap

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239444A (en) * 1962-02-08 1966-03-08 Honeywell Inc Oxygen sensing polarographic cell
US3510420A (en) * 1967-04-24 1970-05-05 Honeywell Inc Polarographic cell with composite electrode-diffusion medium
CH559912A5 (de) * 1971-09-09 1975-03-14 Hoffmann La Roche
US4275286A (en) * 1978-12-04 1981-06-23 Hughes Aircraft Company Process and mask for ion beam etching of fine patterns
US4214966A (en) * 1979-03-20 1980-07-29 Bell Telephone Laboratories, Incorporated Process useful in the fabrication of articles with metallized surfaces
JPS5627643A (en) * 1979-08-14 1981-03-18 Toshiba Corp Electrochemical measuring device
DE3247722A1 (de) * 1982-12-23 1984-06-28 Me Meerestechnik-Elektronik Gmbh, 2351 Trappenkamp Polarografische p0(pfeil abwaerts)2(pfeil abwaerts)-messsonde
US4490211A (en) * 1984-01-24 1984-12-25 International Business Machines Corporation Laser induced chemical etching of metals with excimer lasers
US4521290A (en) * 1984-03-16 1985-06-04 Honeywell Inc. Thin layer electrochemical cell for rapid detection of toxic chemicals
DE3609402A1 (de) * 1986-03-20 1987-09-24 Bayer Diagnostic & Electronic Verfahren zur herstellung elektrochemischer gassensoren
GB8927377D0 (en) * 1989-12-04 1990-01-31 Univ Edinburgh Improvements in and relating to amperometric assays
US5104480A (en) * 1990-10-12 1992-04-14 General Electric Company Direct patterning of metals over a thermally inefficient surface using a laser
US5246576A (en) * 1990-12-10 1993-09-21 Ppg Industries, Inc. Cathode in a layered circuit and electrochemical cell for a measurement of oxygen in fluids

Also Published As

Publication number Publication date
DE69323205D1 (de) 1999-03-04
ATE176047T1 (de) 1999-02-15
WO1994008236A1 (en) 1994-04-14
EP0663999A1 (de) 1995-07-26
EP0663999B1 (de) 1999-01-20
CA2146246A1 (en) 1994-04-14
GB9221099D0 (en) 1992-11-18
US5575930A (en) 1996-11-19

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