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Methods and compositions for detection and analysis of polynucleotides using light harvesting multichromophores

  • US 8,227,187 B2
  • Filed: 12/07/2009
  • Issued: 07/24/2012
  • Est. Priority Date: 08/26/2002
  • Status: Expired due to Term
First Claim
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1. An assay method for detecting polynucleotide binding comprising:

  • a. providing a sample that is suspected of containing a first polynucleotide;

    b. providing a second polynucleotide that is complementary to the first polynucleotide;

    c. providing a signaling chromophore;

    d. providing a conjugated polymer that upon excitation is capable of transferring energy to the signaling chromophore;

    e. contacting the sample with the second polynucleotide, the signaling chromophore and the conjugated polymer under conditions in which the first and second polynucleotides can hybridize to form a signaling complex further comprising the conjugated polymer and the signaling chromophore; and

    f. determining if the first and second polynucleotides have hybridized by detecting if light is produced from the signaling chromophore upon excitation of the conjugated polymer.

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