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Sensor for in vitro determination of glucose

  • US 8,273,227 B2
  • Filed: 10/30/2007
  • Issued: 09/25/2012
  • Est. Priority Date: 03/04/1998
  • Status: Expired due to Fees
First Claim
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1. A sensor for the in vitro determination of glucose level in a sample, the sensor comprising:

  • a substrate comprising a first recessed channel;

    a first conductive material to provide an electrode disposed in the recessed channel on the substrate to substantially fill the channel such that the substrate and the conductive material form a substantially flat surface,wherein a catalyst is mixed or dispersed in said first conductive material,wherein the catalyst includes an enzyme, wherein the enzyme is mixed in a carbon ink to form a mixture,wherein the sensor generates an electrical signal associated with a level of glucose in a volume sample of about 1 microliter or less.

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