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Biosensor

  • US 6,059,946 A
  • Filed: 04/13/1998
  • Issued: 05/09/2000
  • Est. Priority Date: 04/14/1997
  • Status: Expired due to Term
First Claim
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1. A biosensor comprising:

  • an electrically insulating base plate,an electrode system including at least a working electrode and a counter electrode formed on said base plate,a reaction layer comprising pyrrolo-quinoline quinone glucose dehydrogenase and an electron acceptor which is formed on or in the vicinity of said electrode system, anda divalent water-soluble metallic salt provided locally at least in said reaction layer or in an area in the vicinity of said reaction layer, said area being kept apart from said reaction layer,wherein said divalent water-soluble metallic salt is selected from the group consisting of calcium salt, cadmium salt, manganese salt and strontium salt.

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