Surface-enhanced Raman scattering study of L-tryptophan

A. E. Aliaga, I. Osorio-Román, PATRICIO ALEJANDRO LEYTON BONGIORNO, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F., E. Clavijo, J. S. Gómez-Jeria, M. M. Campos-Vallette

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

62 Citas (Scopus)

Resumen

Surface-enhanced Raman scattering (SERS) spectra of tryptophan (Trp) were obtained. A unique SERS spectrum of Trp, corresponding to the most stable conformation and orientation on the metal surface, is observed after a stabilization period. The Trp molecules interact with the surface through both the carboxylate and amino groups; the aliphatic moiety is close to the surface. The pyrrole ring of the indolemoiety is farther from the surface than the benzene fragment. The observed spectra vary depending on both the preparation of the silver colloid and the aggregation time. The interpretation of the experimental results is supported by theoretical treatment of themolecule on the silver surface.

Idioma originalInglés
Páginas (desde-hasta)164-169
Número de páginas6
PublicaciónJournal of Raman Spectroscopy
Volumen40
N.º2
DOI
EstadoPublicada - 1 feb 2009

Huella

Profundice en los temas de investigación de 'Surface-enhanced Raman scattering study of L-tryptophan'. En conjunto forman una huella única.

Citar esto