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Biosensor, biosensor chip and biosensor device

  • US 8,574,423 B2
  • Filed: 05/25/2012
  • Issued: 11/05/2013
  • Est. Priority Date: 07/02/2002
  • Status: Expired due to Term
First Claim
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1. A method for assaying a concentration of an assayed substance, comprising the steps of:

  • providing a biosensor that has a working electrode, a counter electrode, and at least one reference terminal, wherein at least one of the working electrode and the counter electrode is connected to a reference terminal; and

    providing a measurement circuit for generating a voltage between the working electrode and the counter electrode;

    the measurement circuit controlling the voltage between the working electrode and the counter electrode using voltage present at the at least one reference terminal.

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