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Method and apparatus for assay for multiple analytes

  • US 20060099649A1
  • Filed: 12/20/2005
  • Published: 05/11/2006
  • Est. Priority Date: 03/22/2000
  • Status: Active Grant
First Claim
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1. A sensing element for use in a light diffraction assay for detecting the presence or absence of at least two analytes, comprising:

  • a substrate including a surface and on said surface a first pre-selected pattern of first analyte-specific receptors and at least a second pre-selected pattern including second analyte-specific receptors, wherein each of said pre-selected patterns on said surface is distinct and, when bound to an analyte, gives rise to a pre-selected diffraction pattern distinct from diffraction patterns formed from all other unbound and bound pre-selected patterns on the surface.

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