题目：

High-performance flexible sensors of self-healing, reversibly adhesive and stretchable hydrogels for monitoring large and subtle strains

作者：

Hongwei Zhou, Shuangli Li, Hanbin Liu, Bohui Zheng, Xilang Jin, Aijie Ma, Weixing Chen

文章信息：

Macromolecular Materials and Engineering, 2019, 1900621

论文链接：

https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.201900621

摘要：

Flexible sensors are highly required in heath monitoring and human–machine interface, but it is still a challenge to develop flexible sensors with integrated high performances. Herein, high-performance flexible sensors are fabricated utilizing self-healing, reversibly adhesive, and stretchable hydrogels, which are composed of a Pluronic F127 diacrylate (F127DA) cross-linked poly(acrylic acid) (PAA) network and polydopamine (PDA), and further cross-linked by Fe3+. The unique structure endows the resulting hydrogels (PAA-PDA-Fe3+ hydrogels) excellent self-healing property, reversible adhesion property, mechanical stretchability, and electrical conductivity. On the basis of the excellent properties of PAA-PDA-Fe3+ hydrogels, flexible sensors with large sensing range (0–575%), high sensitivity (GF = 6.31), low response time (0.25 s), and excellent robustness (>500 cycles) are assembled and further applied in detecting both large and subtle strains induced by human motions and water ripple. Overall, this work not only provides an alternative clue to construct multi-functional hydrogels, but also offers a new kind of high-performance materials for flexible electronic devices, especially those for health monitoring and human–machine interface.

恭喜李双利同学，再接再厉！

感谢各位的帮助和支持！

感谢国家自然科学青年基金（No. 51603164）、陕西省普通高校青年杰出人才计划，陕西省自然科学基础研究计划（2019JM-124, 2016JQ5036）、陕西省高校科协青年人才托举计划项目（No. 20170706）对本工作的资助。