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Hokkaido University Collection of Scholarly and Academic Papers >
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Lamellar Bilayer to Fibril Structure Transformation of Tough Photonic Hydrogel under Elongation
| Title: | Lamellar Bilayer to Fibril Structure Transformation of Tough Photonic Hydrogel under Elongation |
| Authors: | Haque, M. Anamul Browse this author | | Cui, Kunpeng Browse this author | | Ilyas, Muhammad Browse this author | | Kurokawa, Takayuki Browse this author | | Marcellan, Alba Browse this author | | Brulet, Annie Browse this author | | Takahashi, Riku Browse this author | | Nakajima, Tasuku Browse this author | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 23-Jun-2020 |
| Publisher: | American Chemical Society(ACS) |
| Journal Title: | Macromolecules |
| Volume: | 53 |
| Issue: | 12 |
| Start Page: | 4711 |
| End Page: | 4721 |
| Publisher DOI: | 10.1021/acs.macromol.0c00878 |
| Abstract: | Synthetic hydrogels possessing both macroscopic anisotropic structure and toughness, which are analogous to the load-bearing bio-tissues such as muscles and tendons, are rarely available. Studying the molecular mechanism of tough and anisotropic hydrogel under deformation is beneficial to understand the load-deformation functions of soft bio-tissues. In this work, the deformation-induced structure transformation of a macroscopically anisotropic and tough hydrogel has been investigated to understand the role of structure evolution for enhanced toughness. At rest, the hydrogel possesses a well-defined hierarchical structure in which self-assembled nanometer thick lamellar bilayers are alternatively stacked in hundred nanometer thick hydrogel matrixes. Stretching along the lamellar direction induces structure transformation from lamellar bilayers to hierarchical fibrous structures
aligned along the deformation axis. The generated hierarchical structures consist of micrometer thick fiber bundles made from nanometer thick fibrils analogous to tropo-collagen bundles or microfibrils of the tendon. The fibrous structure formed at large elongation is associated with damage and rupture of the bilayers, which underpins the molecular mechanism of the unique mechanical behaviors of the tough lamellar hydrogel. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.macrolol.0c00878. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/81977 |
| 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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