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Microbiosensor used in-situ

  • US 5,611,900 A
  • Filed: 07/20/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 07/20/1995
  • Status: Expired due to Fees
First Claim
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1. A microbiosensor that is an amperometric, internal referenced, oxygen microelectrode measuring device, having a biological interface as a sensing device that consumes or generates oxygen when exposed to an organic analyte in a response directly proportional to the tapered concentration of the analyte comprising:

  • a tapered casing having an aperture at its tip no greater than 40 micrometers,enclosed within the tapered casing an anode, which serves as an internal reference;

    a cathode;

    an electrolyte therebetween and a membrane in the aperture that prevents contact between a specimen and the components inside the tapered casing, andattached to the tip an immobilized biological interface layer which measures an analyte.

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