Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study

The knowledge of the adsorption geometry of an analyte on a metal substrate employed in surface enhanced Raman scattering (SERS) spectroscopy is important information for the correct interpretation of experimental data. The adsorption geometry of alizarin on silver nanoparticles was studied through...

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Main Authors: Cristina Gellini, Marina Macchiagodena, Marco Pagliai
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/11/4/860
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author Cristina Gellini
Marina Macchiagodena
Marco Pagliai
author_facet Cristina Gellini
Marina Macchiagodena
Marco Pagliai
author_sort Cristina Gellini
collection DOAJ
description The knowledge of the adsorption geometry of an analyte on a metal substrate employed in surface enhanced Raman scattering (SERS) spectroscopy is important information for the correct interpretation of experimental data. The adsorption geometry of alizarin on silver nanoparticles was studied through ab initio calculations in the framework of density functional theory (DFT) by modeling alizarin taking into account all the different charged species present in solution as a function of pH. The calculations allowed a faithful reproduction of the measured SERS spectra and to elucidate the adsorption geometry of this dye on the silver substrate.
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spelling doaj.art-24b353f71aa7438a969d5e1d19a5a9602023-11-21T13:06:17ZengMDPI AGNanomaterials2079-49912021-03-0111486010.3390/nano11040860Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic StudyCristina Gellini0Marina Macchiagodena1Marco Pagliai2Dipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, via della Lastruccia 3–13, 50019 Sesto Fiorentino, ItalyDipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, via della Lastruccia 3–13, 50019 Sesto Fiorentino, ItalyDipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, via della Lastruccia 3–13, 50019 Sesto Fiorentino, ItalyThe knowledge of the adsorption geometry of an analyte on a metal substrate employed in surface enhanced Raman scattering (SERS) spectroscopy is important information for the correct interpretation of experimental data. The adsorption geometry of alizarin on silver nanoparticles was studied through ab initio calculations in the framework of density functional theory (DFT) by modeling alizarin taking into account all the different charged species present in solution as a function of pH. The calculations allowed a faithful reproduction of the measured SERS spectra and to elucidate the adsorption geometry of this dye on the silver substrate.https://www.mdpi.com/2079-4991/11/4/860alizarinRaman spectroscopySERSsilver nanoparticlesDFT calculations
spellingShingle Cristina Gellini
Marina Macchiagodena
Marco Pagliai
Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
Nanomaterials
alizarin
Raman spectroscopy
SERS
silver nanoparticles
DFT calculations
title Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
title_full Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
title_fullStr Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
title_full_unstemmed Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
title_short Adsorption Geometry of Alizarin on Silver Nanoparticles: A Computational and Spectroscopic Study
title_sort adsorption geometry of alizarin on silver nanoparticles a computational and spectroscopic study
topic alizarin
Raman spectroscopy
SERS
silver nanoparticles
DFT calculations
url https://www.mdpi.com/2079-4991/11/4/860
work_keys_str_mv AT cristinagellini adsorptiongeometryofalizarinonsilvernanoparticlesacomputationalandspectroscopicstudy
AT marinamacchiagodena adsorptiongeometryofalizarinonsilvernanoparticlesacomputationalandspectroscopicstudy
AT marcopagliai adsorptiongeometryofalizarinonsilvernanoparticlesacomputationalandspectroscopicstudy