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Surface‐enhanced Raman scattering of flavonoids
Author(s) -
Jurasekova Z.,
GarciaRamos J. V.,
Domingo C.,
SanchezCortes S.
Publication year - 2006
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1634
Subject(s) - chemistry , luteolin , moiety , apigenin , quercetin , raman spectroscopy , raman scattering , catechol , kaempferol , stereochemistry , ring (chemistry) , flavonoid , organic chemistry , antioxidant , physics , optics
The surface‐enhanced Raman scattering (SERS) spectra of a group of flavonoids with related structures (quercetin, kaempferol, luteolin and apigenin) are reported here for the first time. It is demonstrated that the studied flavonoids undergo a chemical change on the Ag nanoparticles prepared by reduction with citrate used as a SERS substrate. Two labile chemical groups have been identified, one of them corresponding to the catechol‐like moiety and another one corresponding to the C‐ring, when a hydroxyl group is in position α with respect to the keto group. Copyright © 2006 John Wiley & Sons, Ltd.