丝素
材料科学
聚乙烯醇
硼砂
生物相容性材料
纳米技术
丝绸
复合材料
高分子科学
生物医学工程
原材料
医学
有机化学
化学
作者
Ningning Yang,Ping Qi,Jing Ren,Haipeng Yu,Shouxin Liu,William P. Meehan,Wenshuai Chen,David L. Kaplan,Shengjie Ling
标识
DOI:10.1021/acsami.9b06920
摘要
The emergence of hydrogel ionotronics has significantly extended the applications of soft electronics by allowing intimate interfaces between electronic units and biological/engineered surfaces for better sensing and communication with surrounding stimuli. However, hydrogel ionotronic devices that combine high stretchability, self-healing, good water retention, and biocompatibility are still desired. Here, we report a biocompatible ionic hydrogel made of polyvinyl alcohol, silk fibroin, and borax. In this ionic hydrogel, polyvinyl alcohol and borax offer the high stretchability and conductivity, respectively, while silk fibroin improves the stability of the hydrogel and increases water uptake by the gels. The hydrogel features strain larger than 5000%, good water retention, self-healing, and tunable conductivity and adhesive capabilities. We also demonstrate the use of the hydrogel as a sensing platform to monitor human body motion for applications in health management, soft robotics, and human-machine interfaces.
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