Tuning the luminescence efficiency by perfluorination of side chains in Eu<sup>3+</sup> complexes with β-diketones of the thiophene series
作者:Evgeniya A. Varaksina、Mikhail A. Kiskin、Konstantin A. Lyssenko、Lada N. Puntus、Vladislav M. Korshunov、Gustavo S. Silva、Ricardo O. Freire、Ilya V. Taydakov
DOI:10.1039/d1cp02951g
日期:——
The effect of fluorinated chain length of Htta analogs in [Eu(L)3phen] complexes on energy transfer was investigated and the complicated influence of substituents on the photophysical properties of the compounds was thoroughly discussed.
The invention relates to an enhancement solution for an assay technology using lanthanide ions or their chelates as labels and dissociative fluorescence enhancement as a tool for detection, wherein said enhancement solution comprises a &bgr;-dietone of formula I
1
wherein R
1
is an aryl, optionally mono- or multi-substituted, and R
2
is a straight or branched alkyl chain with 2 to 9 carbon atoms substituted with four or more fluorine atoms. The invention further relates to a bioaffinity assay using lanthanide ions or their chelates as labels and dissociative fluorescence enhancement as a tool for detection comprising the use of said enhancement solution.