Disposable glucose test strips, and methods and compositions for making same

  • US 5,708,247 A
  • Filed: 02/14/1996
  • Issued: 01/13/1998
  • Est. Priority Date: 02/14/1996
  • Status: Expired due to Term
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First Claim
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1. A disposable glucose test strip for use in a test meter of the type which receives a disposable test strip and a sample of blood from a patient and performs an electrochemical analysis of the amount of glucose in the sample, comprising:

  • (a) a substrate;

    (b) a reference electrode;

    (c) a working electrode, said working electrode comprising a conductive base layer disposed on the substrate and a first working coating disposed over the conductive base layer, said first working coating comprising a filler having both hydrophobic and hydrophilic surface regions such that it forms a network upon drying, an enzyme effective to oxidize glucose, and a mediator effective to transfer electrons from the enzyme to the conductive base layer; and

    (d) means for making an electrical connection between the reference and working electrode and a glucose test meter.

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