a.State Key Laboratory of Integrated Optoelectronics, Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, School of Physics, Northeast Normal University, Changchun 130024, China
b.School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130013, China
c.Changchun SinoBiomaterials Co., Ltd., Changchun 130103, China
hujl100@nenu.edu.cn
收稿:2025-12-18,
修回:2026-03-05,
录用:2026-03-11,
网络首发:2026-07-02,
纸质出版:2026-04
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Long, Y. S.; Lu, M. Y.; Qi, J. W.; Chen, G.; Sun, Y.; He, X. X.; Zhang, T. H.; Cui, L. G.; Hu, J. L.; Liu, Y. C. Green fabrication of high-strength silk fibroin hydrogels via thermal oscillation in all-aqueous media. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3645-2
Yu-Si Long, Mei-Yi Lu, Jia-Wei Qi, et al. Green Fabrication of High-strength Silk Fibroin Hydrogels
Long, Y. S.; Lu, M. Y.; Qi, J. W.; Chen, G.; Sun, Y.; He, X. X.; Zhang, T. H.; Cui, L. G.; Hu, J. L.; Liu, Y. C. Green fabrication of high-strength silk fibroin hydrogels via thermal oscillation in all-aqueous media. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3645-2 DOI:
Yu-Si Long, Mei-Yi Lu, Jia-Wei Qi, et al. Green Fabrication of High-strength Silk Fibroin Hydrogels
Silk fibroin hydrogels frequently exhibit insufficient mechanical strength for biomedical applications. Conventional enhancement strategies often rely on toxic crosslinkers or nondegradable components
thereby compromising biocompatibility and biodegradability. Recently emerged organic solvent-based methods represent an advance
but their associated environmental toxicity remains a concern. In this work
we present a novel thermal oscillation strategy for fabricating high-strength silk fibroin hydrogels exclusively from all-aqueous silk fibroin solutions
eliminating the need for toxic chemicals or non-degradable materials. The resulting hydrogels exhibit outstanding mechanical properties
tensile strength of 2.6 MPa
elongation rate of 152.6%
and toughness of 3.0 MJ/m
3
which not only surpass the organic solvent-derived silk fibroin hydrogels but also rival the dual-crosslinked
double-networked or composite systems. The silk fibroin hydrogels also exhibit a minimal swelling ratio
outstanding long-term integrity
and excellent biocompatibility. The robust
biocompatible
and biodegradable silk fibroin hydrogels are promising for biomedical a
pplications such as load-bearing tissue scaffolds
long-term implantable drug delivery systems
and durable wound dressings.
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