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Chiral plasmonics of self-assembled nanorod dimers
Chiral nanoscale photonic systems typically follow either tetrahedral or helical geometries that require four or more different constituent nanoparticles. Smaller number of particles and different chiral geometries taking advantage of the self-organization capabilities of nanomaterials will advance...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678134/ https://www.ncbi.nlm.nih.gov/pubmed/23752317 http://dx.doi.org/10.1038/srep01934 |
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author | Ma, Wei Kuang, Hua Wang, Libing Xu, Liguang Chang, Wei-Shun Zhang, Huanan Sun, Maozhong Zhu, Yinyue Zhao, Yuan Liu, Liqiang Xu, Chuanlai Link, Stephan Kotov, Nicholas A. |
author_facet | Ma, Wei Kuang, Hua Wang, Libing Xu, Liguang Chang, Wei-Shun Zhang, Huanan Sun, Maozhong Zhu, Yinyue Zhao, Yuan Liu, Liqiang Xu, Chuanlai Link, Stephan Kotov, Nicholas A. |
author_sort | Ma, Wei |
collection | PubMed |
description | Chiral nanoscale photonic systems typically follow either tetrahedral or helical geometries that require four or more different constituent nanoparticles. Smaller number of particles and different chiral geometries taking advantage of the self-organization capabilities of nanomaterials will advance understanding of chiral plasmonic effects, facilitate development of their theory, and stimulate practical applications of chiroplasmonics. Here we show that gold nanorods self-assemble into side-by-side orientated pairs and “ladders” in which chiral properties originate from the small dihedral angle between them. Spontaneous twisting of one nanorod versus the other one breaks the centrosymmetric nature of the parallel assemblies. Two possible enantiomeric conformations with positive and negative dihedral angles were obtained with different assembly triggers. The chiral nature of the angled nanorod pairs was confirmed by 4π full space simulations and the first example of single-particle CD spectroscopy. Self-assembled nanorod pairs and “ladders” enable the development of chiral metamaterials, (bio)sensors, and new catalytic processes. |
format | Online Article Text |
id | pubmed-3678134 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-36781342013-06-11 Chiral plasmonics of self-assembled nanorod dimers Ma, Wei Kuang, Hua Wang, Libing Xu, Liguang Chang, Wei-Shun Zhang, Huanan Sun, Maozhong Zhu, Yinyue Zhao, Yuan Liu, Liqiang Xu, Chuanlai Link, Stephan Kotov, Nicholas A. Sci Rep Article Chiral nanoscale photonic systems typically follow either tetrahedral or helical geometries that require four or more different constituent nanoparticles. Smaller number of particles and different chiral geometries taking advantage of the self-organization capabilities of nanomaterials will advance understanding of chiral plasmonic effects, facilitate development of their theory, and stimulate practical applications of chiroplasmonics. Here we show that gold nanorods self-assemble into side-by-side orientated pairs and “ladders” in which chiral properties originate from the small dihedral angle between them. Spontaneous twisting of one nanorod versus the other one breaks the centrosymmetric nature of the parallel assemblies. Two possible enantiomeric conformations with positive and negative dihedral angles were obtained with different assembly triggers. The chiral nature of the angled nanorod pairs was confirmed by 4π full space simulations and the first example of single-particle CD spectroscopy. Self-assembled nanorod pairs and “ladders” enable the development of chiral metamaterials, (bio)sensors, and new catalytic processes. Nature Publishing Group 2013-06-11 /pmc/articles/PMC3678134/ /pubmed/23752317 http://dx.doi.org/10.1038/srep01934 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
spellingShingle | Article Ma, Wei Kuang, Hua Wang, Libing Xu, Liguang Chang, Wei-Shun Zhang, Huanan Sun, Maozhong Zhu, Yinyue Zhao, Yuan Liu, Liqiang Xu, Chuanlai Link, Stephan Kotov, Nicholas A. Chiral plasmonics of self-assembled nanorod dimers |
title | Chiral plasmonics of self-assembled nanorod dimers |
title_full | Chiral plasmonics of self-assembled nanorod dimers |
title_fullStr | Chiral plasmonics of self-assembled nanorod dimers |
title_full_unstemmed | Chiral plasmonics of self-assembled nanorod dimers |
title_short | Chiral plasmonics of self-assembled nanorod dimers |
title_sort | chiral plasmonics of self-assembled nanorod dimers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678134/ https://www.ncbi.nlm.nih.gov/pubmed/23752317 http://dx.doi.org/10.1038/srep01934 |
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