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Fluorescence energy transfer in particles

  • US 6,238,931 B1
  • Filed: 07/12/1994
  • Issued: 05/29/2001
  • Est. Priority Date: 09/24/1993
  • Status: Expired due to Term
First Claim
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1. A loadable particle comprising an energy donor as a first component and an energy acceptor as a second component positioned in said particle at an energy exchanging distance from one another, wherein the two components have a stokes shift of greater than or equal to 50 nm, wherein said first component has an excitation wavelength greater than approximately 550 nm and said second component has an emission wavelength greater than approximately 680 nm, said particle having bound on its surface, a protein, polypeptide, nucleic acid, nucleotide or protein containing ligand analogue.

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