Understanding the ion-induced elongation of silver nanoparticles embedded in silica

Abstract In this work we have studied the elongation of silver nanoparticles irradiated with 40 MeV Bromine ions by means of in situ optical measurements, transmission electron microscopy and molecular dynamics simulations. The localized surface plasmon resonance of silver nanoparticles has a strong...

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Autores principales:	Ovidio Peña-Rodríguez, Alejandro Prada, José Olivares, Alicia Oliver, Luis Rodríguez-Fernández, Héctor G. Silva-Pereyra, Eduardo Bringa, José Manuel Perlado, Antonio Rivera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5be56d59d1cd4e1c834bf4132ef2789c
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spelling	oai:doaj.org-article:5be56d59d1cd4e1c834bf4132ef2789c2021-12-02T15:05:57ZUnderstanding the ion-induced elongation of silver nanoparticles embedded in silica10.1038/s41598-017-01145-02045-2322https://doaj.org/article/5be56d59d1cd4e1c834bf4132ef2789c2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01145-0https://doaj.org/toc/2045-2322Abstract In this work we have studied the elongation of silver nanoparticles irradiated with 40 MeV Bromine ions by means of in situ optical measurements, transmission electron microscopy and molecular dynamics simulations. The localized surface plasmon resonance of silver nanoparticles has a strong dependence on the particle shape and size, which allowed us to obtain the geometrical parameters with remarkable accuracy by means of a fit of the optical spectra. Optical results have been compared with transmission electron microscopy images and molecular dynamics simulations and the agreement is excellent in both cases. An important advantage of in situ measurements is that they yield an extremely detailed information of the full elongation kinetics. Final nanoparticle elongation depends on a complex competition between single-ion deformation, Ostwald ripening and dissolution. Building and validating theoretical models with the data reported in this work should be easier than with the information previously available, due to the unprecedented level of kinetic details obtained from the in situ measurements.Ovidio Peña-RodríguezAlejandro PradaJosé OlivaresAlicia OliverLuis Rodríguez-FernándezHéctor G. Silva-PereyraEduardo BringaJosé Manuel PerladoAntonio RiveraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ovidio Peña-Rodríguez Alejandro Prada José Olivares Alicia Oliver Luis Rodríguez-Fernández Héctor G. Silva-Pereyra Eduardo Bringa José Manuel Perlado Antonio Rivera Understanding the ion-induced elongation of silver nanoparticles embedded in silica
description	Abstract In this work we have studied the elongation of silver nanoparticles irradiated with 40 MeV Bromine ions by means of in situ optical measurements, transmission electron microscopy and molecular dynamics simulations. The localized surface plasmon resonance of silver nanoparticles has a strong dependence on the particle shape and size, which allowed us to obtain the geometrical parameters with remarkable accuracy by means of a fit of the optical spectra. Optical results have been compared with transmission electron microscopy images and molecular dynamics simulations and the agreement is excellent in both cases. An important advantage of in situ measurements is that they yield an extremely detailed information of the full elongation kinetics. Final nanoparticle elongation depends on a complex competition between single-ion deformation, Ostwald ripening and dissolution. Building and validating theoretical models with the data reported in this work should be easier than with the information previously available, due to the unprecedented level of kinetic details obtained from the in situ measurements.
format	article
author	Ovidio Peña-Rodríguez Alejandro Prada José Olivares Alicia Oliver Luis Rodríguez-Fernández Héctor G. Silva-Pereyra Eduardo Bringa José Manuel Perlado Antonio Rivera
author_facet	Ovidio Peña-Rodríguez Alejandro Prada José Olivares Alicia Oliver Luis Rodríguez-Fernández Héctor G. Silva-Pereyra Eduardo Bringa José Manuel Perlado Antonio Rivera
author_sort	Ovidio Peña-Rodríguez
title	Understanding the ion-induced elongation of silver nanoparticles embedded in silica
title_short	Understanding the ion-induced elongation of silver nanoparticles embedded in silica
title_full	Understanding the ion-induced elongation of silver nanoparticles embedded in silica
title_fullStr	Understanding the ion-induced elongation of silver nanoparticles embedded in silica
title_full_unstemmed	Understanding the ion-induced elongation of silver nanoparticles embedded in silica
title_sort	understanding the ion-induced elongation of silver nanoparticles embedded in silica
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5be56d59d1cd4e1c834bf4132ef2789c
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Understanding the ion-induced elongation of silver nanoparticles embedded in silica

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