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Solid state bio-sensor

  • US 5,171,689 A
  • Filed: 04/18/1989
  • Issued: 12/15/1992
  • Est. Priority Date: 11/08/1984
  • Status: Expired due to Term
First Claim
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1. A bio-sensor for measuring a substrate concentration of a liquid sample, comprising:

  • at least a working electrode and a counter electrode,an insulating substrate plate which supports and insulates the working electrode and the counter electrode from one another, anda porous plate fixed on the insulating substrate plate, wherein said porous plate carries at least an oxidoreductase and a buffer, the oxidoreductase and the buffer are in a dry state, and wherein the bio-sensor is constructed so as not to contain a liquid containing chamber.

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