Mechanochemical Regulated Origami with Tough Hydrogels by Ion Transfer Printing

ACS Applied Materials & Interfaces
Xiaohu ZhouBo Zheng

Abstract

Stimuli-responsive hydrogels that undergo programmable shape deformation are of great importance for a wide variety of applications spanning from soft robotics and biomedical devices to tissue engineering and drug delivery. To guide shape morphing, anisotropic elements need to be encoded into the hydrogels during fabrication, which are extremely difficult to alter afterward. This study reports a simple and reliable mechanochemical regulation strategy to postengineer the hydrogels by encoding structures of high stiffness locally into prestretched tough hydrogels through ion transfer printing with a paper-cut. During printing, trivalent ions (Fe3+) were patterned and diffused into the prestretched tough gels, which dramatically increased the local stiffness by forming the second trivalent ionically cross-linked network. By removing the applied stretching force, the stiff anisotropy-encoded prestretched tough hydrogels underwent programmable shape morphing into complex three-dimensional origami structures due to the stiffness mismatch.

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Citations

Jul 20, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Dan ZhouXuechang Zhou
Feb 23, 2020·Macromolecular Rapid Communications·Shengzhu ZhouTao Chen
Feb 28, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Jingda TangTiejun Wang
Dec 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Dan ZhouXuechang Zhou
Aug 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Xiaohu ZhouXuechang Zhou
Mar 20, 2019·Advanced Science·Xiaoxia LeTao Chen
Oct 24, 2020·Chemical Communications : Chem Comm·Xiaohu ZhouXuechang Zhou
Feb 3, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Feng-Mei ChengHai-Dong Li
Feb 5, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Xinyao LiGuanghui Gao
Mar 2, 2021·Chemical Society Reviews·Santanu Panja, Dave J Adams
Dec 16, 2020·ACS Applied Materials & Interfaces·Si Yu ZhengQiang Zheng
May 24, 2019·ACS Applied Materials & Interfaces·Jingda TangTiejun Wang
May 28, 2019·ACS Applied Materials & Interfaces·Lvye FangZhuang Xie
Oct 31, 2021·Advanced Science·Jixiang QiDaining Fang

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