Publicaciones 2011-2020

@article{RN378,
title = {Raman of Indigo on a Silver Surface. Raman and Theoretical Characterization of Indigo Deposited on Silicon Dioxide-Coated and Uncoated Silver Nanoparticles},
author = { G. Corales and F. Celis and J.S. Gomez-Jeria and M. Campos-Vallette and J.J. Carcamo},
url = {/brokenurl#<Go to ISI>://WOS:000404931300004},
doi = {10.1080/00387010.2017.1324493},
issn = {0038-7010},
year = {2017},
date = {2017-01-01},
journal = {Spectroscopy Letters},
volume = {50},
number = {6},
pages = {316-321},
abstract = {Raman, 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.},
keywords = {analysis, approximations, dioxide-coated fluorescence, identification, indigo, molecular-orbital nanoparticles, raman, scattering, sers sers, shiners, silicon silver spectroscopic theories},
pubstate = {published},
tppubtype = {article}
}

@article{RN261,
title = {Raman and Surface Enhanced Raman Signals of the Sensor 1-(4-Mercaptophenyl)-2,4,6-Triphenylpyridinium Perchlorate},
author = { F. Celis and M. Campos-Vallette and J.C. Vega and J.S. Gomez-Jeria and C. Aliaga},
url = {/brokenurl#<Go to ISI>://WOS:000361545700018},
doi = {10.4067/S0717-97072015000200018},
issn = {0717-9707},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Chilean Chemical Society},
volume = {60},
number = {2},
pages = {2944-2948},
abstract = {The sensor 1-(4-mercaptophenyl)-2,4,6-triphenylpyridinium perchlorate compound was vibrationally characterized using Raman and the Surface-Enhanced Raman techniques, SERS and Shell-Isolated Nanoparticles-Enhanced Raman Spectroscopy (SHINERS). The Raman spectrum was analyzed and the band assignment was supported using DFT data at the B3LYP/6-31G(d) level. SERS data allowed infer about the orientation of the analyte on the naked Ag surface. EHT calculations for an Ag/analyte model represent well the SERS spectrum supporting the Ag-S bond formation. The SHINERS spectrum was obtained by using Ag
@SiO2 nanoparticles prepared at two different time of the SiO2 coating process. The most intense SHINERS spectral signals of the compound (100 nM) were obtained after 20 minutes of the Ag
@SiO2 formation. No charge-transfer was concluded from the SHINERS experiments.},
keywords = {density dft dyes, dynamics, eht halochromism, hydrocarbons, perchlorate, raman, scattering, sers, shiners, silver, solvent spectroscopy},
pubstate = {published},
tppubtype = {article}
}