Patent ID: 6251687
Filing Date: 2001-06-26
Classification: C09B,G01N,Y10S

Abstract:
A loadable particle comprising an energy donor as a first component and 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 500 nm, said second component has an emission wavelength greater than approximately 680 nm, and at least one of said first component and said second component is a phthalocyanine derivative having an axial ligand or a naphthalocyanine derivative having an axial ligand; said particle having bound on its surface, a protein, polypeptide, nucleic acid, nucleotide or protein comprising a ligand analogue.