Site-Specific Pre-Swelling-Directed Morphing Structures of Patterned Hydrogels

Angewandte Chemie
Zhi Jian WangQiang Zheng

Abstract

Morphing materials have promising applications in various fields, yet how to program the self-shaping process for specific configurations remains a challenge. Herein we show a versatile approach to control the buckling of individual domains and thus the outcome configurations of planar-patterned hydrogels. By photolithography, high-swelling disc gels were positioned in a non-swelling gel sheet; the swelling mismatch resulted in out-of-plain buckling of the disc gels. To locally control the buckling direction, masks with holes were used to guide site-specific swelling of the high-swelling gel under the holes, which built a transient through-thickness gradient and thus directed the buckling during the subsequent unmasked swelling process. Therefore, various configurations of an identical patterned hydrogel can be programmed by the pre-swelling step with different masks to encode the buckling directions of separate domains.

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Citations

Sep 22, 2018·Chemistry, an Asian Journal·Chen Yu LiQiang Zheng
Sep 25, 2018·Chemistry : a European Journal·John P S MowatChristopher P Nicholas
May 17, 2019·Soft Matter·Jennifer M BoothbyTaylor H Ware
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Apr 23, 2020·Advanced Materials·Xing Peng HaoZi Liang Wu
Sep 25, 2019·Research : a Science Partner Journal·X DuY Wang
Apr 8, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Zhi Jian WangQiang Zheng
Apr 8, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Peng SunJun Fu
Dec 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Dan ZhouXuechang Zhou
Nov 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yu LiQiang Chen
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Aug 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Xiaohu ZhouXuechang Zhou
Jan 14, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Jinhui LiJun Fu
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Feb 3, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Feng-Mei ChengHai-Dong Li
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Nov 6, 2018·ACS Applied Materials & Interfaces·Guorong GaoJun Fu

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