Application of SERS and SEF Spectroscopy for Detection of Water-Soluble Fullerene-Chlorin Dyads and Chlorin e6

 
PIIS086956520001646-3-1
DOI10.31857/S086956520001376-6
Publication type Article
Status Published
Authors
Affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences
Affiliation: Institute of Solid State Physics, Russian Academy of Sciences
Affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences
Affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences
Affiliation: A.V.Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds
Affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences
Affiliation:
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Skolkovo Institute of science and technology
Affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences
Journal nameDoklady Akademii nauk
Edition
Pages270-275
Abstract

The free fluorescence spectra in solution, spectra of surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF) of chlorin e6 and water-soluble covalent fullerene-chlorin dyads were investigated. It was shown that chlorin e6 and covalent fullerene-chlorin dyads have similar characteristic SERS spectra. Fullerene-chlorin dyads show a pronounced SEF signal, whereas in native chlorin e6 SEF fluorescence is absent, consistent with the theory of an inverse SEF dependence on the quantum yield of free fluorescence. The concentration dependence of SEF intensity is linear for the investigated dyads in the range of 0.1-2 mkM. These effects allow one to detect fullerene-chlorin dyads with a low quantum yield of free fluorescence in solutions with high sensitivity, which opens up wide opportunities for a successful study of the biological properties of fullerene-chlorin dyads and their applications in medicine.

Keywords
Received14.10.2018
Publication date16.10.2018
Number of characters1008
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