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Guided Mode Resonant Filter Biosensor Using a Linear Grating Surface Structure

  • US 20110237464A1
  • Filed: 03/08/2011
  • Published: 09/29/2011
  • Est. Priority Date: 10/30/2000
  • Status: Abandoned Application
First Claim
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1. A biosensor comprising:

  • (a) a grating layer comprising a one-dimensional or two-dimensional grating having a first surface, wherein the grating layer is comprised of a low refractive index material;

    (b) an interfacial layer on the first surface of the grating layer;

    (c) a high refractive index material layer on a surface of the interfacial layer opposite of the grating layer; and

    (d) one or more specific binding substances immobilized on a surface of the high refractive index material layer opposite of the interfacial layer;

    wherein, when the biosensor is illuminated a resonant grating effect is produced on the reflected radiation spectrum.

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