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Self-Assembly Dynamics of Reconfigurable Colloidal Molecules
[Image: see text] Colloidal molecules are designed to mimic their molecular analogues through their anisotropic shape and interactions. However, current experimental realizations are missing the structural flexibility present in real molecules thereby restricting their use as model systems. We overc...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867909/ https://www.ncbi.nlm.nih.gov/pubmed/35080387 http://dx.doi.org/10.1021/acsnano.1c09088 |
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author | Chakraborty, Indrani Pearce, Daniel J. G. Verweij, Ruben W. Matysik, Sabine C. Giomi, Luca Kraft, Daniela J. |
author_facet | Chakraborty, Indrani Pearce, Daniel J. G. Verweij, Ruben W. Matysik, Sabine C. Giomi, Luca Kraft, Daniela J. |
author_sort | Chakraborty, Indrani |
collection | PubMed |
description | [Image: see text] Colloidal molecules are designed to mimic their molecular analogues through their anisotropic shape and interactions. However, current experimental realizations are missing the structural flexibility present in real molecules thereby restricting their use as model systems. We overcome this limitation by assembling reconfigurable colloidal molecules from silica particles functionalized with mobile DNA linkers in high yields. We achieve this by steering the self-assembly pathway toward the formation of finite-sized clusters by employing high number ratios of particles functionalized with complementary DNA strands. The size ratio of the two species of particles provides control over the overall cluster size, i.e., the number of bound particles N, as well as the degree of reconfigurability. The bond flexibility provided by the mobile linkers allows the successful assembly of colloidal clusters with the geometrically expected maximum number of bound particles and shape. We quantitatively examine the self-assembly dynamics of these flexible colloidal molecules by a combination of experiments, agent-based simulations, and an analytical model. Our “flexible colloidal molecules” are exciting building blocks for investigating and exploiting the self-assembly of complex hierarchical structures, photonic crystals, and colloidal metamaterials. |
format | Online Article Text |
id | pubmed-8867909 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-88679092022-02-24 Self-Assembly Dynamics of Reconfigurable Colloidal Molecules Chakraborty, Indrani Pearce, Daniel J. G. Verweij, Ruben W. Matysik, Sabine C. Giomi, Luca Kraft, Daniela J. ACS Nano [Image: see text] Colloidal molecules are designed to mimic their molecular analogues through their anisotropic shape and interactions. However, current experimental realizations are missing the structural flexibility present in real molecules thereby restricting their use as model systems. We overcome this limitation by assembling reconfigurable colloidal molecules from silica particles functionalized with mobile DNA linkers in high yields. We achieve this by steering the self-assembly pathway toward the formation of finite-sized clusters by employing high number ratios of particles functionalized with complementary DNA strands. The size ratio of the two species of particles provides control over the overall cluster size, i.e., the number of bound particles N, as well as the degree of reconfigurability. The bond flexibility provided by the mobile linkers allows the successful assembly of colloidal clusters with the geometrically expected maximum number of bound particles and shape. We quantitatively examine the self-assembly dynamics of these flexible colloidal molecules by a combination of experiments, agent-based simulations, and an analytical model. Our “flexible colloidal molecules” are exciting building blocks for investigating and exploiting the self-assembly of complex hierarchical structures, photonic crystals, and colloidal metamaterials. American Chemical Society 2022-01-26 2022-02-22 /pmc/articles/PMC8867909/ /pubmed/35080387 http://dx.doi.org/10.1021/acsnano.1c09088 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Chakraborty, Indrani Pearce, Daniel J. G. Verweij, Ruben W. Matysik, Sabine C. Giomi, Luca Kraft, Daniela J. Self-Assembly Dynamics of Reconfigurable Colloidal Molecules |
title | Self-Assembly Dynamics of Reconfigurable
Colloidal Molecules |
title_full | Self-Assembly Dynamics of Reconfigurable
Colloidal Molecules |
title_fullStr | Self-Assembly Dynamics of Reconfigurable
Colloidal Molecules |
title_full_unstemmed | Self-Assembly Dynamics of Reconfigurable
Colloidal Molecules |
title_short | Self-Assembly Dynamics of Reconfigurable
Colloidal Molecules |
title_sort | self-assembly dynamics of reconfigurable
colloidal molecules |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867909/ https://www.ncbi.nlm.nih.gov/pubmed/35080387 http://dx.doi.org/10.1021/acsnano.1c09088 |
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