2017 |
Corales, G; Celis, F; Gomez-Jeria, J S; Campos-Vallette, M; Carcamo, J J Raman of Indigo on a Silver Surface. Raman and Theoretical Characterization of Indigo Deposited on Silicon Dioxide-Coated and Uncoated Silver Nanoparticles Artículo de revista Spectroscopy Letters, 50 (6), pp. 316-321, 2017, ISSN: 0038-7010. Resumen | Enlaces | BibTeX | Etiquetas: analysis, approximations, dioxide-coated fluorescence, identification, indigo, molecular-orbital nanoparticles, raman, scattering, sers sers, shiners, silicon silver spectroscopic theories @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} } 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. |
2016 |
Aliaga, A E; Leyton, P; Clavijo, E; Campos-Vallette, M Fluorescence and Surface-Enhanced Vibrational Spectroscopies of Lawsone and Plumbagin Artículo de revista Spectroscopy Letters, 49 (5), pp. 326-335, 2016, ISSN: 0038-7010. Resumen | Enlaces | BibTeX | Etiquetas: behavior, calculations, enhanced fluorescence, infrared-absorption, lawsone, nanoparticles, plumbagin, quinones raman raman-scattering, reduction, scattering, selection, sers, silver spectrum, surface theoretical @article{RN318, title = {Fluorescence and Surface-Enhanced Vibrational Spectroscopies of Lawsone and Plumbagin}, author = { A.E. Aliaga and P. Leyton and E. Clavijo and M. Campos-Vallette}, url = {/brokenurl#<Go to ISI>://WOS:000405754400002}, doi = {10.1080/00387010.2016.1146772}, issn = {0038-7010}, year = {2016}, date = {2016-01-01}, journal = {Spectroscopy Letters}, volume = {49}, number = {5}, pages = {326-335}, abstract = {The natural dyes lawsone and plumbagin (1,4-naphthoquinones) were studied by using fluorescence, Raman, infrared (IR), surface-enhanced Raman scattering (SERS), and surface-enhanced IR absorption. From the absorption spectrum, it was possible to infer that the enol-lawsone tautomer concentration decreases in silver colloidal solution. Plumbagin dimers, both in water and in silver colloidal solution, were identified from the fluorescence band profile and surface-SERS spectrum. The SERS spectrum of lawsone was obtained by using silver colloidal solution after 12-hour settle; the keto and enol lawsone silver colloid interaction occurs. The assignment of Raman and IR bands of both dyes was calculated with density functional theory calculations. Only a monomeric structure of lawsone interacting with a silver cluster model was predicted. The monomer adopts a nearly coplanar orientation onto the silver surface; the shortest distance is 3.2 angstrom, suggesting an electrostatic interaction.}, keywords = {behavior, calculations, enhanced fluorescence, infrared-absorption, lawsone, nanoparticles, plumbagin, quinones raman raman-scattering, reduction, scattering, selection, sers, silver spectrum, surface theoretical}, pubstate = {published}, tppubtype = {article} } The natural dyes lawsone and plumbagin (1,4-naphthoquinones) were studied by using fluorescence, Raman, infrared (IR), surface-enhanced Raman scattering (SERS), and surface-enhanced IR absorption. From the absorption spectrum, it was possible to infer that the enol-lawsone tautomer concentration decreases in silver colloidal solution. Plumbagin dimers, both in water and in silver colloidal solution, were identified from the fluorescence band profile and surface-SERS spectrum. The SERS spectrum of lawsone was obtained by using silver colloidal solution after 12-hour settle; the keto and enol lawsone silver colloid interaction occurs. The assignment of Raman and IR bands of both dyes was calculated with density functional theory calculations. Only a monomeric structure of lawsone interacting with a silver cluster model was predicted. The monomer adopts a nearly coplanar orientation onto the silver surface; the shortest distance is 3.2 angstrom, suggesting an electrostatic interaction. |
2015 |
Silva, N; Arellano, E; Castro, C; Yutronic, N; Lang, E; Chornik, B; Jara, P Cyclodextrin Inclusion Compound Crystals for Growth of Cu-Au Core-Shell Nanoparticles Artículo de revista Journal of Inclusion Phenomena and Macrocyclic Chemistry, 82 (3-4), pp. 497-504, 2015, ISSN: 1388-3127. Resumen | Enlaces | BibTeX | Etiquetas: alpha-cyclodextrin, complexes compound, copper core-shell decylamine, fabrication, gold inclusion nanoparticles, optical-properties, oxide, particles, phase-transfer, scattering @article{RN248, title = {Cyclodextrin Inclusion Compound Crystals for Growth of Cu-Au Core-Shell Nanoparticles}, author = { N. Silva and E. Arellano and C. Castro and N. Yutronic and E. Lang and B. Chornik and P. Jara}, url = {/brokenurl#<Go to ISI>://WOS:000357572400020}, doi = {10.1007/s10847-015-0531-x}, issn = {1388-3127}, year = {2015}, date = {2015-01-01}, journal = {Journal of Inclusion Phenomena and Macrocyclic Chemistry}, volume = {82}, number = {3-4}, pages = {497-504}, abstract = {The preparation and structural elucidation of the 2 alpha-cyclodextrin/decylamine inclusion compound (IC) by proton nuclear magnetic resonance, rotating frame overhauser effect spectroscopy and powder X-ray diffraction have been achieved. The IC microcrystals were used as a support for the preparation of Au-Cu core-shell nanoparticles by the sputtering method. The coating of copper nanoparticles with gold was verified through anodic stripping voltammetry. The presence of metallic copper and the absence of copper oxides were determined by X-ray photoelectron spectroscopy. These results show that the formation of core-shell Cu-Au by sputtering is an effective approach to prevent the oxidation of Cu particles, leading to potential applications in nanoelectronics.}, keywords = {alpha-cyclodextrin, complexes compound, copper core-shell decylamine, fabrication, gold inclusion nanoparticles, optical-properties, oxide, particles, phase-transfer, scattering}, pubstate = {published}, tppubtype = {article} } The preparation and structural elucidation of the 2 alpha-cyclodextrin/decylamine inclusion compound (IC) by proton nuclear magnetic resonance, rotating frame overhauser effect spectroscopy and powder X-ray diffraction have been achieved. The IC microcrystals were used as a support for the preparation of Au-Cu core-shell nanoparticles by the sputtering method. The coating of copper nanoparticles with gold was verified through anodic stripping voltammetry. The presence of metallic copper and the absence of copper oxides were determined by X-ray photoelectron spectroscopy. These results show that the formation of core-shell Cu-Au by sputtering is an effective approach to prevent the oxidation of Cu particles, leading to potential applications in nanoelectronics. |
Celis, F; Campos-Vallette, M; Vega, J C; Gomez-Jeria, J S; Aliaga, C Raman and Surface Enhanced Raman Signals of the Sensor 1-(4-Mercaptophenyl)-2,4,6-Triphenylpyridinium Perchlorate Artículo de revista Journal of the Chilean Chemical Society, 60 (2), pp. 2944-2948, 2015, ISSN: 0717-9707. Resumen | Enlaces | BibTeX | Etiquetas: density dft dyes, dynamics, eht halochromism, hydrocarbons, perchlorate, raman, scattering, sers, shiners, silver, solvent spectroscopy @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} } 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. |
2012 |
Carcamo, J J; Aliaga, A E; Clavijo, E; Branes, M; Campos-Vallette, M Raman Study of the Shockwave Effect on Collagens Artículo de revista Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy, 86 , pp. 360-365, 2012, ISSN: 1386-1425. Resumen | Enlaces | BibTeX | Etiquetas: amino-acids, collagens, conformation, dependence, infrared-spectra, raman, scattering, shockwaves, spectroscopy, time tissues @article{carcamo2012raman, title = {Raman Study of the Shockwave Effect on Collagens}, author = { J.J. Carcamo and A.E. Aliaga and E. Clavijo and M. Branes and M. Campos-Vallette}, url = {/brokenurl#<Go to ISI>://WOS:000300515500052}, doi = {10.1016/j.saa.2011.10.049}, issn = {1386-1425}, year = {2012}, date = {2012-01-01}, journal = {Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy}, volume = {86}, pages = {360-365}, publisher = {2011 Elsevier B.V.}, abstract = {The Raman spectra (1800-200 cm(-1)) of isolated dried collagen types land ill were recorded at different times after shockwave (SW) application in aqueous media. SWs were applied in a single session. One week after the SW application the vibrational data analysis indicates changes in the conformation of the collagens; orientational changes are also inferred. During the next three weeks collagens tended to recover the conformation and orientation existing before SW application.}, keywords = {amino-acids, collagens, conformation, dependence, infrared-spectra, raman, scattering, shockwaves, spectroscopy, time tissues}, pubstate = {published}, tppubtype = {article} } The Raman spectra (1800-200 cm(-1)) of isolated dried collagen types land ill were recorded at different times after shockwave (SW) application in aqueous media. SWs were applied in a single session. One week after the SW application the vibrational data analysis indicates changes in the conformation of the collagens; orientational changes are also inferred. During the next three weeks collagens tended to recover the conformation and orientation existing before SW application. |
Garrido, C; Aliaga, A E; Gomez-Jeria, J S; Carcamo, J J; Clavijo, E; Campos-Vallette, M Interaction of the C-Terminal Peptide from Pigeon Cytochrome C with Silver Nanoparticles. A Raman, Sers and Theoretical Study Artículo de revista Vibrational Spectroscopy, 61 , pp. 94-98, 2012, ISSN: 0924-2031. Resumen | Enlaces | BibTeX | Etiquetas: amino-acids, approximations aromatic-hydrocarbons, charge, enhanced extended hartree-fock huckel hydrophobicity, molecular-orbital net pcc87-104 peptide, polycyclic proteins, raman raman, scattering, spectroscopy, surface, surface-enhanced theories, theory, type @article{garrido2012interaction, title = {Interaction of the C-Terminal Peptide from Pigeon Cytochrome C with Silver Nanoparticles. A Raman, Sers and Theoretical Study}, author = { C. Garrido and A.E. Aliaga and J.S. Gomez-Jeria and J.J. Carcamo and E. Clavijo and M. Campos-Vallette}, url = {/brokenurl#<Go to ISI>://WOS:000304686400014}, doi = {10.1016/j.vibspec.2012.01.011}, issn = {0924-2031}, year = {2012}, date = {2012-01-01}, journal = {Vibrational Spectroscopy}, volume = {61}, pages = {94-98}, publisher = {2012 Elsevier B.V.}, abstract = {The Raman and surface-enhanced Raman scattering (SERS) spectra of the C-terminal peptide of pigeon cytochrome C (PCC87-104). were recorded. This peptide is widely used to study the immune response in vivo. Hydrophobicity and net charge parameters of PCC87-104, allowed prediction of the nature of its interaction with colloidal nanostructured silver surfaces. The SERS spectrum provided information about the organization and orientation of PCC87-104 on the surface of silver nanoparticles (AgNPs). The batch to batch reproducible SERS spectra were obtained by adding the colloidal AgNPs solution onto the dried analyte sample. On the basis of the SERS information and the analysis of the net charge of each amino acid residue in the peptide sequence, it is concluded that the interaction of the peptide and the AgNPs is mainly induced and oriented by the lysine residues. The spectroscopic results are supported by quantum chemical calculations, performed by using Extended Huckel theory for a model of PCC87-104 interacting with a silver surface.}, keywords = {amino-acids, approximations aromatic-hydrocarbons, charge, enhanced extended hartree-fock huckel hydrophobicity, molecular-orbital net pcc87-104 peptide, polycyclic proteins, raman raman, scattering, spectroscopy, surface, surface-enhanced theories, theory, type}, pubstate = {published}, tppubtype = {article} } The Raman and surface-enhanced Raman scattering (SERS) spectra of the C-terminal peptide of pigeon cytochrome C (PCC87-104). were recorded. This peptide is widely used to study the immune response in vivo. Hydrophobicity and net charge parameters of PCC87-104, allowed prediction of the nature of its interaction with colloidal nanostructured silver surfaces. The SERS spectrum provided information about the organization and orientation of PCC87-104 on the surface of silver nanoparticles (AgNPs). The batch to batch reproducible SERS spectra were obtained by adding the colloidal AgNPs solution onto the dried analyte sample. On the basis of the SERS information and the analysis of the net charge of each amino acid residue in the peptide sequence, it is concluded that the interaction of the peptide and the AgNPs is mainly induced and oriented by the lysine residues. The spectroscopic results are supported by quantum chemical calculations, performed by using Extended Huckel theory for a model of PCC87-104 interacting with a silver surface. |
Carcamo, J J; Aliaga, A E; Clavijo, E; Garrido, C; Gomez-Jeria, J S; Campos-Vallette, M Proline and Hydroxyproline Deposited on Silver Nanoparticles. A Raman, Sers and Theoretical Study Artículo de revista Journal of Raman Spectroscopy, 43 (6), pp. 750-755, 2012, ISSN: 0377-0486. Resumen | Enlaces | BibTeX | Etiquetas: amino-acids, approximations, calculations, l-proline, molecular-orbital raman raman, scattering, spectra spectroscopy, surface-enhanced theoretical theories, trans-4-hydroxy- @article{carcamo2012proline, title = {Proline and Hydroxyproline Deposited on Silver Nanoparticles. A Raman, Sers and Theoretical Study}, author = { J.J. Carcamo and A.E. Aliaga and E. Clavijo and C. Garrido and J.S. Gomez-Jeria and M. Campos-Vallette}, url = {/brokenurl#<Go to ISI>://WOS:000305391800012}, doi = {10.1002/jrs.3092}, issn = {0377-0486}, year = {2012}, date = {2012-01-01}, journal = {Journal of Raman Spectroscopy}, volume = {43}, number = {6}, pages = {750-755}, publisher = {2011 John Wiley & Sons, Ltd.}, abstract = {The Raman and surface-enhanced Raman scattering (SERS) spectra of l-proline (Pro) and trans-4-hydroxy- l-proline (Hyp) were recorded. SERS spectra were obtained on colloidal Ag prepared by reduction with hydroxylamine. Allowing sufficient time for Pro and Hyp to adjust in the colloidal solution resulted fundamentally in obtaining unique and reproducible SERS spectra. Hyp stabilizes on the surface more rapidly than Pro. The spectral analysis indicates that Pro interacts with the Ag surface through the carboxylate group. The interaction of Hyp with the metal surface occurs through the amino, methylene and carboxylate moieties of the molecule. The spectroscopic results are supported by quantum chemical calculations, performed using extended Huckel theory (EHT) of the title compounds interacting with an Ag cluster model. The assignment of the Raman bands was supported by a normal coordinate analysis performed through Becke, three-parameter, LeeYangParr/6-311?G*?+?calculations.}, keywords = {amino-acids, approximations, calculations, l-proline, molecular-orbital raman raman, scattering, spectra spectroscopy, surface-enhanced theoretical theories, trans-4-hydroxy-}, pubstate = {published}, tppubtype = {article} } The Raman and surface-enhanced Raman scattering (SERS) spectra of l-proline (Pro) and trans-4-hydroxy- l-proline (Hyp) were recorded. SERS spectra were obtained on colloidal Ag prepared by reduction with hydroxylamine. Allowing sufficient time for Pro and Hyp to adjust in the colloidal solution resulted fundamentally in obtaining unique and reproducible SERS spectra. Hyp stabilizes on the surface more rapidly than Pro. The spectral analysis indicates that Pro interacts with the Ag surface through the carboxylate group. The interaction of Hyp with the metal surface occurs through the amino, methylene and carboxylate moieties of the molecule. The spectroscopic results are supported by quantum chemical calculations, performed using extended Huckel theory (EHT) of the title compounds interacting with an Ag cluster model. The assignment of the Raman bands was supported by a normal coordinate analysis performed through Becke, three-parameter, LeeYangParr/6-311?G*?+?calculations. |
2011 |
Diaz-Fleming, G; Celis, F; Campos-Vallette, M; Aliaga, A E; Escobar, M; Koch, R Raman, Infrared, Sers and Theoretical Study of 3-(1-Phenylpropan-2-Ylamino) Propanenitrile, Fenproporex Artículo de revista Journal of Raman Spectroscopy, 42 (7), pp. 1497-1504, 2011, ISSN: 0377-0486. Resumen | Enlaces | BibTeX | Etiquetas: calculations, density-functional dft elements, fenproporex, gold, infrared, raman, scattering, sers, silver, spectroscopy, surface-enhanced temperature theory @article{RN41f, title = {Raman, Infrared, Sers and Theoretical Study of 3-(1-Phenylpropan-2-Ylamino) Propanenitrile, Fenproporex}, author = { G. Diaz-Fleming and F. Celis and M. Campos-Vallette and A.E. Aliaga and M. Escobar and R. Koch}, url = {/brokenurl#<Go to ISI>://WOS:000293001000003}, doi = {10.1002/jrs.2882}, issn = {0377-0486}, year = {2011}, date = {2011-01-01}, journal = {Journal of Raman Spectroscopy}, volume = {42}, number = {7}, pages = {1497-1504}, publisher = {2011 John Wiley & Sons, Ltd.}, abstract = {Infrared, Raman and surface-enhanced Raman scattering (SERS) spectra of 3-(1-phenylpropan-2-ylamino) propanenitrile (fenproporex) have been recorded. Density functional theory (DFT) with the B3LYP functional was used for optimizations of ground state geometries and simulation of Raman and SERS vibrational spectra of this molecule. Bands of the vibrational spectra were assigned in detail. The comparison of SERS spectra obtained by using colloidal silver and gold nanoparticles with the corresponding Raman spectrum reveals enhancement and shifts in bands, suggesting a possible partial charge-transfer mechanism in the SERS effect. Information about the orientation of fenproporex on the nanometer-sized metal structures is also obtained.}, keywords = {calculations, density-functional dft elements, fenproporex, gold, infrared, raman, scattering, sers, silver, spectroscopy, surface-enhanced temperature theory}, pubstate = {published}, tppubtype = {article} } Infrared, Raman and surface-enhanced Raman scattering (SERS) spectra of 3-(1-phenylpropan-2-ylamino) propanenitrile (fenproporex) have been recorded. Density functional theory (DFT) with the B3LYP functional was used for optimizations of ground state geometries and simulation of Raman and SERS vibrational spectra of this molecule. Bands of the vibrational spectra were assigned in detail. The comparison of SERS spectra obtained by using colloidal silver and gold nanoparticles with the corresponding Raman spectrum reveals enhancement and shifts in bands, suggesting a possible partial charge-transfer mechanism in the SERS effect. Information about the orientation of fenproporex on the nanometer-sized metal structures is also obtained. |
2017 |
Raman of Indigo on a Silver Surface. Raman and Theoretical Characterization of Indigo Deposited on Silicon Dioxide-Coated and Uncoated Silver Nanoparticles Artículo de revista Spectroscopy Letters, 50 (6), pp. 316-321, 2017, ISSN: 0038-7010. |
2016 |
Fluorescence and Surface-Enhanced Vibrational Spectroscopies of Lawsone and Plumbagin Artículo de revista Spectroscopy Letters, 49 (5), pp. 326-335, 2016, ISSN: 0038-7010. |
2015 |
Cyclodextrin Inclusion Compound Crystals for Growth of Cu-Au Core-Shell Nanoparticles Artículo de revista Journal of Inclusion Phenomena and Macrocyclic Chemistry, 82 (3-4), pp. 497-504, 2015, ISSN: 1388-3127. |
Raman and Surface Enhanced Raman Signals of the Sensor 1-(4-Mercaptophenyl)-2,4,6-Triphenylpyridinium Perchlorate Artículo de revista Journal of the Chilean Chemical Society, 60 (2), pp. 2944-2948, 2015, ISSN: 0717-9707. |
2012 |
Raman Study of the Shockwave Effect on Collagens Artículo de revista Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy, 86 , pp. 360-365, 2012, ISSN: 1386-1425. |
Interaction of the C-Terminal Peptide from Pigeon Cytochrome C with Silver Nanoparticles. A Raman, Sers and Theoretical Study Artículo de revista Vibrational Spectroscopy, 61 , pp. 94-98, 2012, ISSN: 0924-2031. |
Proline and Hydroxyproline Deposited on Silver Nanoparticles. A Raman, Sers and Theoretical Study Artículo de revista Journal of Raman Spectroscopy, 43 (6), pp. 750-755, 2012, ISSN: 0377-0486. |
2011 |
Raman, Infrared, Sers and Theoretical Study of 3-(1-Phenylpropan-2-Ylamino) Propanenitrile, Fenproporex Artículo de revista Journal of Raman Spectroscopy, 42 (7), pp. 1497-1504, 2011, ISSN: 0377-0486. |