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Fluorescence energy transfer and intramolecular energy transfer in particles using novel compounds

  • US 5,763,189 A
  • Filed: 09/23/1994
  • Issued: 06/09/1998
  • Est. Priority Date: 09/24/1993
  • Status: Expired due to Term
First Claim
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1. A composition made by a process comprising steps of:

  • A) selecting at least one fluorescent hybrid phthalocyanine derivative containing a metal, said derivative(s) having (1) at least one donor subunit with a desired excitation peak; and

    (2) at least one acceptor subunit with a desired emission peak; and

    (3) at least one electron transfer subunit; and

    (4) at least one axial ligand covalently bound to said metal in said phthalocyanine derivative;

    wherein said derivative(s) is/are capable of intramolecular energy transfer from said donor subunit to said acceptor subunit; and

    ,B) randomly incorporating said phthalocyanine derivative(s) into a microparticle selected from the group consisting of latex, silica, alumina, liposomes and colloids.

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