High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands

ABSTRACT: We present the mapping of the full plasmonic mode spectrum for single and aggregated gold nanoparticles linked through DNA strands to a silicon nitride substrate. A comprehensive analysis of the electron energy loss spectroscopy images maps was performed on nanoparticles standing alone, di...

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Autores principales: Diaz-Egea, Carlos, Sigle, Wilfried, van Aken, Peter A, Molina, Sergio I
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728231/
https://www.ncbi.nlm.nih.gov/pubmed/23890222
http://dx.doi.org/10.1186/1556-276X-8-337
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author Diaz-Egea, Carlos
Sigle, Wilfried
van Aken, Peter A
Molina, Sergio I
author_facet Diaz-Egea, Carlos
Sigle, Wilfried
van Aken, Peter A
Molina, Sergio I
author_sort Diaz-Egea, Carlos
collection PubMed
description ABSTRACT: We present the mapping of the full plasmonic mode spectrum for single and aggregated gold nanoparticles linked through DNA strands to a silicon nitride substrate. A comprehensive analysis of the electron energy loss spectroscopy images maps was performed on nanoparticles standing alone, dimers, and clusters of nanoparticles. The experimental results were confirmed by numerical calculations using the Mie theory and Gans-Mie theory for solving Maxwell's equations. Both bright and dark surface plasmon modes have been unveiled. PACS: 78.67.Bf; 61.46.Df; 87.64.Ee
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spelling pubmed-37282312013-07-31 High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands Diaz-Egea, Carlos Sigle, Wilfried van Aken, Peter A Molina, Sergio I Nanoscale Res Lett Nano Express ABSTRACT: We present the mapping of the full plasmonic mode spectrum for single and aggregated gold nanoparticles linked through DNA strands to a silicon nitride substrate. A comprehensive analysis of the electron energy loss spectroscopy images maps was performed on nanoparticles standing alone, dimers, and clusters of nanoparticles. The experimental results were confirmed by numerical calculations using the Mie theory and Gans-Mie theory for solving Maxwell's equations. Both bright and dark surface plasmon modes have been unveiled. PACS: 78.67.Bf; 61.46.Df; 87.64.Ee Springer 2013-07-26 /pmc/articles/PMC3728231/ /pubmed/23890222 http://dx.doi.org/10.1186/1556-276X-8-337 Text en Copyright ©2013 Diaz-Egea et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Diaz-Egea, Carlos
Sigle, Wilfried
van Aken, Peter A
Molina, Sergio I
High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title_full High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title_fullStr High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title_full_unstemmed High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title_short High spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on DNA strands
title_sort high spatial resolution mapping of surface plasmon resonance modes in single and aggregated gold nanoparticles assembled on dna strands
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728231/
https://www.ncbi.nlm.nih.gov/pubmed/23890222
http://dx.doi.org/10.1186/1556-276X-8-337
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