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Biological identification system with integrated sensor chip

  • US 20020123048A1
  • Filed: 05/03/2001
  • Published: 09/05/2002
  • Est. Priority Date: 05/03/2000
  • Status: Active Grant
First Claim
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1. A method of detecting the presence or measuring the quantity of a target analyte in a sample reagent comprising the steps of:

  • contacting a microfabricated electrochemical biosensor with the sample reagent, the microfabricated electrochemical biosensor comprising;

    (a) a substrate; and

    (b) at least two electrically conductive electrodes fabricated on the substrate by integrated circuit technology, each of the electrical conductive electrodes consisting of a single layer of an electrically conductive material;

    containing the sample reagent in contact with the conducting electrodes;

    measuring a electrical signal output from the microfabricated electrochemical biosensor; and

    determining from the signal output the presence and/or quantity of the target analyte in the sample reagent.

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