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Chirality-controlled crystallization via screw dislocations
Chirality plays an important role in science from enantiomeric separation in chemistry to chiral plasmonics in nanotechnology. However, the understanding of chirality amplification from chiral building blocks to ordered helical superstructures remains a challenge. Here, we demonstrate that topologic...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5895742/ https://www.ncbi.nlm.nih.gov/pubmed/29643349 http://dx.doi.org/10.1038/s41467-018-03745-4 |
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author | Sung, Baeckkyoung de la Cotte, Alexis Grelet, Eric |
author_facet | Sung, Baeckkyoung de la Cotte, Alexis Grelet, Eric |
author_sort | Sung, Baeckkyoung |
collection | PubMed |
description | Chirality plays an important role in science from enantiomeric separation in chemistry to chiral plasmonics in nanotechnology. However, the understanding of chirality amplification from chiral building blocks to ordered helical superstructures remains a challenge. Here, we demonstrate that topological defects, such as screw dislocations, can drive the chirality transfer from particle to supramolecular structure level during the crystallization process. By using a model system of chiral particles, which enables direct imaging of single particle incorporation into growing crystals, we show that the crystallization kinetic pathway is the key parameter for monitoring, via the defects, the chirality amplification of the crystalline structures from racemic to predominantly homohelical. We provide an explanation based on the interplay between geometrical frustration, racemization induced by thermal fluctuations, and particle chirality. Our results demonstrate that screw dislocations not only promote the growth, but also control the chiral morphology and therefore the functionality of crystalline states. |
format | Online Article Text |
id | pubmed-5895742 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58957422018-04-13 Chirality-controlled crystallization via screw dislocations Sung, Baeckkyoung de la Cotte, Alexis Grelet, Eric Nat Commun Article Chirality plays an important role in science from enantiomeric separation in chemistry to chiral plasmonics in nanotechnology. However, the understanding of chirality amplification from chiral building blocks to ordered helical superstructures remains a challenge. Here, we demonstrate that topological defects, such as screw dislocations, can drive the chirality transfer from particle to supramolecular structure level during the crystallization process. By using a model system of chiral particles, which enables direct imaging of single particle incorporation into growing crystals, we show that the crystallization kinetic pathway is the key parameter for monitoring, via the defects, the chirality amplification of the crystalline structures from racemic to predominantly homohelical. We provide an explanation based on the interplay between geometrical frustration, racemization induced by thermal fluctuations, and particle chirality. Our results demonstrate that screw dislocations not only promote the growth, but also control the chiral morphology and therefore the functionality of crystalline states. Nature Publishing Group UK 2018-04-11 /pmc/articles/PMC5895742/ /pubmed/29643349 http://dx.doi.org/10.1038/s41467-018-03745-4 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Sung, Baeckkyoung de la Cotte, Alexis Grelet, Eric Chirality-controlled crystallization via screw dislocations |
title | Chirality-controlled crystallization via screw dislocations |
title_full | Chirality-controlled crystallization via screw dislocations |
title_fullStr | Chirality-controlled crystallization via screw dislocations |
title_full_unstemmed | Chirality-controlled crystallization via screw dislocations |
title_short | Chirality-controlled crystallization via screw dislocations |
title_sort | chirality-controlled crystallization via screw dislocations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5895742/ https://www.ncbi.nlm.nih.gov/pubmed/29643349 http://dx.doi.org/10.1038/s41467-018-03745-4 |
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