期刊
NATURE COMMUNICATIONS
卷 10, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-10243-8
关键词
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资金
- National Natural Science Foundation of China [21571046, 51732011, 21761132008, 21431006, 21503063]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [21521001]
- Users with Excellence and Scientific Research Grant of Hefei Science Center of CAS [2015HSC-UE007, 2015SRG-HSC038]
- Program for New Century Excellent Talents in University [2013JYXR0654]
- Fundamental Research Funds for the Central Universities [JZ2019HGPB0104, JZ2017HGTB0197]
- Anhui Provincial Natural Science Foundation [1708085MB30, 1908085J05]
Inspired by smart biological tissues, artificial muscle-like actuators offer fascinating prospects due to their distinctive shape transformation and self-healing function under external stimuli. However, further practical application is hindered by the lack of simple and general routes to fabricate ingenious soft materials with anisotropic responsiveness. Here, we describe a general in situ polymerization strategy for the fabrication of anisotropic hydrogels composed of highly-ordered lamellar network crosslinked by the metal nanostructure assemblies, accompanied with remarkably anisotropic performances on mechanical, optical, de-swelling and swelling behaviors. Owing to the dynamic thiolate-metal coordination as healing motifs, the composites exhibit rapid and efficient multi-responsive self-healing performance under NIR irradiation and low pH condition. Dependent on well-defined anisotropic structures, the hydrogel presents controllable solvent-responsive mechanical actuating performance. Impressively, the integrated device through a healing-induced assembly way can deliver more complicated, elaborate forms of actuation, demonstrating its great potentials as superior soft actuators like smart robots.
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