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Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs
Designing topographic clusters is of significant interest, yet it remains challenging as they often lack mobility or deformability. Here we exploit the huge volumetric expansion (up to 3000%) of a new type of building block, thermally expandable microbombs. They consist of a viscoelastic polymeric s...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5620065/ https://www.ncbi.nlm.nih.gov/pubmed/28959006 http://dx.doi.org/10.1038/s41467-017-00538-z |
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author | Yu, Seunggun Cho, Hyesung Hong, Jun Pyo Park, Hyunchul Jolly, Jason Christopher Kang, Hong Suk Lee, Jin Hong Kim, Junsoo Lee, Seung Hwan Lee, Albert S. Hong, Soon Man Park, Cheolmin Yang, Shu Koo, Chong Min |
author_facet | Yu, Seunggun Cho, Hyesung Hong, Jun Pyo Park, Hyunchul Jolly, Jason Christopher Kang, Hong Suk Lee, Jin Hong Kim, Junsoo Lee, Seung Hwan Lee, Albert S. Hong, Soon Man Park, Cheolmin Yang, Shu Koo, Chong Min |
author_sort | Yu, Seunggun |
collection | PubMed |
description | Designing topographic clusters is of significant interest, yet it remains challenging as they often lack mobility or deformability. Here we exploit the huge volumetric expansion (up to 3000%) of a new type of building block, thermally expandable microbombs. They consist of a viscoelastic polymeric shell and a volatile gas core, which, within structural confinement, create micro-clusters via inverse jamming and topographical close-packing. Upon heating, microbombs anchored in rigid confinement underwent balloon-like blowing up, allowing for dense clusters via soft interplay between viscoelastic shells. Importantly, the confinement is unyielding against the internal pressure of the microbombs, thereby enabling self-assembled clusters, which can be coupled with topographic inscription to introduce structural hierarchy on the clusters. Our strategy provides densely packed yet ultralight clusters with a variety of complex shapes, cleavages, curvatures, and hierarchy. In turn, these clusters will enrich our ability to explore the assemblies of the ever-increasing range of microparticle systems. |
format | Online Article Text |
id | pubmed-5620065 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56200652017-10-02 Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs Yu, Seunggun Cho, Hyesung Hong, Jun Pyo Park, Hyunchul Jolly, Jason Christopher Kang, Hong Suk Lee, Jin Hong Kim, Junsoo Lee, Seung Hwan Lee, Albert S. Hong, Soon Man Park, Cheolmin Yang, Shu Koo, Chong Min Nat Commun Article Designing topographic clusters is of significant interest, yet it remains challenging as they often lack mobility or deformability. Here we exploit the huge volumetric expansion (up to 3000%) of a new type of building block, thermally expandable microbombs. They consist of a viscoelastic polymeric shell and a volatile gas core, which, within structural confinement, create micro-clusters via inverse jamming and topographical close-packing. Upon heating, microbombs anchored in rigid confinement underwent balloon-like blowing up, allowing for dense clusters via soft interplay between viscoelastic shells. Importantly, the confinement is unyielding against the internal pressure of the microbombs, thereby enabling self-assembled clusters, which can be coupled with topographic inscription to introduce structural hierarchy on the clusters. Our strategy provides densely packed yet ultralight clusters with a variety of complex shapes, cleavages, curvatures, and hierarchy. In turn, these clusters will enrich our ability to explore the assemblies of the ever-increasing range of microparticle systems. Nature Publishing Group UK 2017-09-28 /pmc/articles/PMC5620065/ /pubmed/28959006 http://dx.doi.org/10.1038/s41467-017-00538-z Text en © The Author(s) 2017 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 Yu, Seunggun Cho, Hyesung Hong, Jun Pyo Park, Hyunchul Jolly, Jason Christopher Kang, Hong Suk Lee, Jin Hong Kim, Junsoo Lee, Seung Hwan Lee, Albert S. Hong, Soon Man Park, Cheolmin Yang, Shu Koo, Chong Min Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title | Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title_full | Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title_fullStr | Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title_full_unstemmed | Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title_short | Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
title_sort | shaping micro-clusters via inverse jamming and topographic close-packing of microbombs |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5620065/ https://www.ncbi.nlm.nih.gov/pubmed/28959006 http://dx.doi.org/10.1038/s41467-017-00538-z |
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