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Resistive sensor based on conductivity change of conductive polymer and measuring method thereof

  • US 9,567,620 B2
  • Filed: 02/17/2015
  • Issued: 02/14/2017
  • Est. Priority Date: 10/28/2014
  • Status: Active Grant
First Claim
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1. A resistive sensor for an analyte, comprising:

  • a substrate;

    a conductive polymer layer configured on the substrate and made of polyaniline or derivatives thereof, wherein a peroxidase is configured on the conductive polymer layer and used for oxidizing the conductive polymer layer so that a conductivity of the conductive polymer layer is decreased after applying an analyte, wherein a conductivity change of the conductive polymer layer is related to a concentration of the analyte; and

    an oxidase layer configured on the conductive polymer layer and provided with an oxidase configured thereon, wherein the oxidase is separated from the peroxidase and used for oxidizing the analyte to generate a hydrogen peroxide so that the peroxidase is oxidized by the hydrogen peroxide.

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