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Role of hierarchy structure on the mechanical adaptation of self-healing hydrogels under cyclic stretching
| Title: | Role of hierarchy structure on the mechanical adaptation of self-healing hydrogels under cyclic stretching |
| Authors: | Li, Xueyu Browse this author →KAKEN DB | | Cui, Kunpeng Browse this author →KAKEN DB | | Zheng, Yong Browse this author | | Ye, Ya Nan Browse this author | | Yu, Chengtao Browse this author | | Yang, Wenqi Browse this author | | Nakajima, Tasuku Browse this author →KAKEN DB | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 20-Dec-2023 |
| Publisher: | American Association for the Advancement of Science（AAAS） |
| Journal Title: | Science Advances |
| Volume: | 9 |
| Issue: | 51 |
| Start Page: | adj6856 |
| Publisher DOI: | 10.1126/sciadv.adj6856 |
| Abstract: | Soft materials with mechanical adaptability have substantial potential for various applications in tissue engineering. Gaining a deep understanding of the structural evolution and adaptation dynamics of soft materials subjected to cyclic stretching gives insight into developing mechanically adaptive materials. Here, we investigate the effect of hierarchy structure on the mechanical adaptation of self-healing hydrogels under cyclic stretching training. A polyampholyte hydrogel, composed of hierarchical structures including ionic bonds, transient and permanent polymer networks, and bicontinuous hard/soft-phase networks, is adopted as a model. Conditions for effective training, mild overtraining, and fatal overtraining are demonstrated in soft materials. We further reveal that mesoscale hard/soft-phase networks dominate the long-term memory effect of training and play a crucial role in the asymmetric dynamics of compliance changes and the symmetric dynamics of hydrogel shape evolution. Our findings provide insights into the design of hierarchical structures for adaptive soft materials. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/91367 |
| Appears in Collections: | 生命科学院・先端生命科学研究院 (Graduate School of Life Science / Faculty of Advanced Life Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 龔 剣萍 (Gong Jian Ping)
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