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Interdigitated chemical sensors, and methods of making and using the same

  • US 20060237310A1
  • Filed: 04/26/2005
  • Published: 10/26/2006
  • Est. Priority Date: 04/26/2005
  • Status: Active Grant
First Claim
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1. A sensing electrode pair, comprising:

  • a. a substrate;

    b. a pair of spaced sensing electrodes elevated above the substrate, wherein one of the electrodes of the electrode pair is a drive electrode and the other electrode of the electrode pair is a sense electrode in electrical communication with the drive electrode, and wherein each of the drive electrode and sense electrode is elevated above the substrate by at least one post disposed between the substrate and the electrode so as to space the electrode from an upper surface of the substrate; and

    c. a chemical sensing material disposed on at least a portion of at least one of the drive electrode and sense electrode of the electrode pair, wherein the chemical sensing material is responsive to a target analyte.

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