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USING FLOATING GATE FIELD EFFECT TRANSISTORS FOR CHEMICAL AND/OR BIOLOGICAL SENSING

  • US 20090079414A1
  • Filed: 12/05/2008
  • Published: 03/26/2009
  • Est. Priority Date: 01/11/2005
  • Status: Active Grant
First Claim
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1. A method for determining the presence or concentration of a target material in a medium, the method comprising:

  • a) determining a current-voltage characteristic of a floating gate field effect transistor having a floating gate electrically coupled with a sensing material having a charge that changes in the presence of the target substance; and

    b) determining a presence or concentration of the target substance based on the determined current-voltage characteristic.

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