Surface-enhanced Raman scattering of flavonoids

✍ Scribed by Z. Jurasekova; J. V. Garcia-Ramos; C. Domingo; S. Sanchez-Cortes

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 127 KB
• Volume: 37
• Category: Article
• ISSN: 0377-0486
• DOI: 10.1002/jrs.1634

✦ Synopsis

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 a with respect to the keto group.