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Cooperative deformations of periodically patterned hydrogels

Nature has shown elegant paradigms of smart deformation, which inspired biomimetic systems with controllable bending, folding, and twisting that are significant for the development of soft electronics and actuators. Complex deformations are usually realized by additively incorporating typical struct...

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Autores principales: Wang, Zhi Jian, Zhu, Chao Nan, Hong, Wei, Wu, Zi Liang, Zheng, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5600534/
https://www.ncbi.nlm.nih.gov/pubmed/28929134
http://dx.doi.org/10.1126/sciadv.1700348
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author Wang, Zhi Jian
Zhu, Chao Nan
Hong, Wei
Wu, Zi Liang
Zheng, Qiang
author_facet Wang, Zhi Jian
Zhu, Chao Nan
Hong, Wei
Wu, Zi Liang
Zheng, Qiang
author_sort Wang, Zhi Jian
collection PubMed
description Nature has shown elegant paradigms of smart deformation, which inspired biomimetic systems with controllable bending, folding, and twisting that are significant for the development of soft electronics and actuators. Complex deformations are usually realized by additively incorporating typical structures in selective domains with little interaction. We demonstrate the cooperative deformations of periodically patterned hydrogel sheets, in which neighboring domains mutually interact and cooperatively deform. Nonswelling disc gels are periodically positioned in a high-swelling gel. During the swelling process, the compartmentalized high-swelling gel alternately bends upward or downward to relieve the in-plane compression, but the overall integrated structure remains flat. The synergy between the elastic mismatch and the geometric periodicity selects the outcome pattern. Both experiment and modeling show that various types of cooperative deformation can be achieved by tuning the pattern geometry and gel properties. Different responsive polymers can also be patterned in one composite gel. Under stimulation, reversible transformations between different cooperative deformations are realized. The principle of cooperative deformation should be applicable to other materials, and the patterns can be miniaturized to the micrometer- or nanometer-scale level, providing the morphing materials with advanced functionalities for applications in various fields.
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spelling pubmed-56005342017-09-19 Cooperative deformations of periodically patterned hydrogels Wang, Zhi Jian Zhu, Chao Nan Hong, Wei Wu, Zi Liang Zheng, Qiang Sci Adv Research Articles Nature has shown elegant paradigms of smart deformation, which inspired biomimetic systems with controllable bending, folding, and twisting that are significant for the development of soft electronics and actuators. Complex deformations are usually realized by additively incorporating typical structures in selective domains with little interaction. We demonstrate the cooperative deformations of periodically patterned hydrogel sheets, in which neighboring domains mutually interact and cooperatively deform. Nonswelling disc gels are periodically positioned in a high-swelling gel. During the swelling process, the compartmentalized high-swelling gel alternately bends upward or downward to relieve the in-plane compression, but the overall integrated structure remains flat. The synergy between the elastic mismatch and the geometric periodicity selects the outcome pattern. Both experiment and modeling show that various types of cooperative deformation can be achieved by tuning the pattern geometry and gel properties. Different responsive polymers can also be patterned in one composite gel. Under stimulation, reversible transformations between different cooperative deformations are realized. The principle of cooperative deformation should be applicable to other materials, and the patterns can be miniaturized to the micrometer- or nanometer-scale level, providing the morphing materials with advanced functionalities for applications in various fields. American Association for the Advancement of Science 2017-09-15 /pmc/articles/PMC5600534/ /pubmed/28929134 http://dx.doi.org/10.1126/sciadv.1700348 Text en Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Wang, Zhi Jian
Zhu, Chao Nan
Hong, Wei
Wu, Zi Liang
Zheng, Qiang
Cooperative deformations of periodically patterned hydrogels
title Cooperative deformations of periodically patterned hydrogels
title_full Cooperative deformations of periodically patterned hydrogels
title_fullStr Cooperative deformations of periodically patterned hydrogels
title_full_unstemmed Cooperative deformations of periodically patterned hydrogels
title_short Cooperative deformations of periodically patterned hydrogels
title_sort cooperative deformations of periodically patterned hydrogels
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5600534/
https://www.ncbi.nlm.nih.gov/pubmed/28929134
http://dx.doi.org/10.1126/sciadv.1700348
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