writer：Zhenwu Wang, Jing Chen, Liufang wang, Guorong Gao, Yang Zhou, Rong Wang, Ting Xu, Jingbo Yin*, Ju
keywords：Strain sensors, adhesive, conductive hydrogels
source：期刊
specific source：Journal of Materials Chemistry B 2019, 7, 24-29.
Issue time：2019年
Inspired by biosystem, ionic hydrogels have been extensively studied as promising materials for wearable or implantable devices. Herein, we report novel ionic hydrogels that comprise dynamically crosslinked polyzwitterion and physically crosslinked polyvinyl alcohol, which demonstrate excellent mechanical properties, repeatable self-adhesion, and high and linear strain sensitivity. The obtained hydrogels can be directly attached to human skin as sensors to detect or monitor physiological signals.