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Authordc.contributor.authorCorales, Guillermo 
Authordc.contributor.authorCelis, Freddy 
Authordc.contributor.authorGómez Jeria, Juan 
Authordc.contributor.authorCampos Vallette, Marcelo 
Authordc.contributor.authorCárcamo Vega, José 
Cita de ítemdc.identifier.citationSpectroscopy Letters Vol. 50 (6): 316-321es_ES
Abstractdc.description.abstractRaman, surface-enhanced Raman scattering, and shell isolated nanoparticles-enhanced Raman scattering techniques were used to study the indigo-nanoparticle interaction nature. Silver nanoparticles were employed with and without a silicon dioxide spacer inert layer. The SERS spectral profile, obtained using silver nanoparticles, is different from the Raman one, which led to the proposition that the indigo-silver interaction is in the range of intermolecular interactions. SERS spectral reproducibility suggests identical organization and orientation of the analyte on the metal surface. The shell isolated nanoparticles enhanced Raman scattering spectrum of indigo, obtained by using silicon dioxide coated silver nanoparticles resulted similar to its Raman spectrum. This result indicates that the indigo structure is chemically unmodified by the silicon dioxide-coated silver surface. From the shell-isolated nanoparticles-enhanced Raman scattering experiments, the electromagnetic mechanism is proposed as the reason for the spectral enhancement. Theoretical calculations allow one to infer both the indigo-silver surface interaction nature and the orientation of indigo on the surface.es_ES
Patrocinadordc.description.sponsorshipFONDECYT 11140262 1140524 3150222es_ES
Publisherdc.publisherTaylor & Francises_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceSpectroscopy Letterses_ES
Keywordsdc.subjectSilicon dioxide coated silver nanoparticleses_ES
Títulodc.titleRaman of indigo on a silver surface. Raman and theoretical characterization of indigo deposited on silicon dioxide-coated and uncoated silver nanoparticleses_ES
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación ISIes_ES

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile