SERS and theoretical studies of arginine

A. E. Aliaga, C. Garrido, PATRICIO ALEJANDRO LEYTON BONGIORNO, G. Diaz F., J. S. Gomez-Jeria, T. Aguayo, E. Clavijo, M. M. Campos-Vallette, S. Sanchez-Cortes

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Arginine amino acid (Arg) has been vibrationally studied through its infrared, Raman and surface-enhanced Raman scattering (SERS) spectra, and theoretical calculations. Net charge is used to predict the possibility to obtain the SERS spectrum of Arg in colloidal solution. The interpretation of the SERS spectral data suggests that the Arg-Ag nanoparticles interaction in a colloidal solution and in the case of the Arg coated by Ag is mainly verified through the guanidinium moiety. Theoretical calculations performed by using extended Hückel theory method for a model of Arg interacting with an Ag cluster support the observed SERS experimental result.

Original languageEnglish
Pages (from-to)458-463
Number of pages6
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume76
Issue number5
DOIs
StatePublished - 1 Sep 2010

Keywords

  • Ag cluster
  • Arginine
  • Raman spectrum
  • Surface-enhanced Raman scattering

Fingerprint

Dive into the research topics of 'SERS and theoretical studies of arginine'. Together they form a unique fingerprint.

Cite this