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Carbon nanotube sensor and method of producing the same

  • US 20030218224A1
  • Filed: 04/14/2003
  • Published: 11/27/2003
  • Est. Priority Date: 04/12/2002
  • Status: Active Grant
First Claim
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1. A method of producing a carbon nanotube sensor for detection of a small particle or molecule, wherein the sensor includes a gate, a source and a drain positioned on the gate, and a carbon nanotube grown from a catalytic material and extending from one of the source and the drain, said method comprising the steps of:

  • functionalizing an end of the carbon nanotube such that the functionalized carbon nanotube is receptive to at least one of the small particle and the molecule;

    driving the functionalized carbon nanotube in a resonance;

    measuring the resonance of the functionalized carbon nanotube when the end of the functionalized carbon nanotube is free of the small particle and the molecule; and

    monitoring for a change in the resonance to detect the association of at least one of the small particle and the molecule with the end of the functionalized carbon nanotube.

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