Use of broadband absorbing and emitting nir - fluorophores with a large stokes - shift as colorants in core - shell - nanoparticles for analysis and the biomarkers as components of fret - systems as well as process based thereon

摘要

The use of a compound according to the general formula (i) wherein b and b ''are independently selected from methyl, ethyl, phenyl, a 5,6 - r'' - benzoxazole - 2 radical, a 5,6 - r ''- benzimidazole - 2 radical, a 5,6 - r'' - benzothiazole - 2 radical and a 5,6 - r ''- indole - 2 radical;X, x ''and x ″ independently of one another are selected from methyl, ethyl, phenyl, a sulfonic - radical and a butanesulfonic acid - radical;D is selected from hydrogen, so₃^–, Coo^–, Methyl, ethyl, phenyl and trifluoromethyl;Z is nitrogen is;R is equal to carbon or hydrogen;K is equal to h, cl, br,is;L is selected from the group consisting of thiol, amine, azide, aldehyde, carboxyl, ethyn and maleimide;n is equal to 0 or is a natural number; with the proviso that n is equal to 0 when r.sup.2 is hydrogen;m is equal to 0 or a natural number between 1 and 12 is; ..