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A Sterile, Injectable, and Robust Sericin Hydrogel Prepared by Degraded Sericin

文献类型： 外文期刊

作者： Zhang, Yeshun 1 ; Wang, Susu 1 ; Li, Yurong 1 ; Li, Xiang 1 ; Du, Zhanyan 1 ; Liu, Siyu 1 ; Song, Yushuo 1 ; Li, Yanyan 1 ; Zhang, Guozheng 1 ;

作者机构： 1.Jiangsu Univ Sci & Technol, Sch Biotechnol, Zhenjiang 212100, Peoples R China

2.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Sericultural Res Inst, Key Lab Silkworm & Mulberry Genet Improvement, Zhenjiang 212100, Peoples R China

3.Zhenjiang Zhongnong Biotechnol Co Ltd, Zhenjiang 212121, Peoples R China

关键词： hydrogel; high temperature and pressure; degraded sericin; robustness

期刊名称：GELS （ 影响因子：4.6； 五年影响因子：5.2 ）

ISSN：

年卷期： 2023 年 9 卷 12 期

页码：

收录情况： SCI

摘要： The application of sericin hydrogels is limited mainly due to their poor mechanical strength, tendency to be brittle and inconvenient sterilization. To address these challenges, a sericin hydrogel exhibiting outstanding physical and chemical properties along with cytocompatibility was prepared through crosslinking genipin with degraded sericin extracted from fibroin deficient silkworm cocoons by the high temperature and pressure method. Our reported sericin hydrogels possess good elasticity, injectability, and robust behaviors. The 8% sericin hydrogel can smoothly pass through a 16 G needle. While the 12% sericin hydrogel remains intact until its compression ratio reaches 70%, accompanied by a compression strength of 674 kPa. 12% sericin hydrogel produce a maximum stretch of 740%, with breaking strength and tensile modulus of 375 kPa and 477 kPa respectively. Besides that, the hydrogel system demonstrated remarkable cell-adhesive capabilities, effectively promoting cell attachment and, proliferation. Moreover, the swelling and degradation behaviors of the hydrogels are pH responsiveness. Sericin hydrogel releases drugs in a sustained manner. Furthermore, this study addresses the challenge of sterilizing sericin hydrogels (sterilization will inevitably lead to the destruction of their structures). In addition, it challenges the prior notion that sericin extracted under high temperature and pressure is difficult to directly cross-linked into a stable hydrogel. This developed hydrogel system in this study holds promise to be a new multifunctional platform expanding the application area scope of sericin.

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