Gradiently Foaming Ultrasoft Hydrogel with Stop Holes for Highly Deformable, Crack-Resistant and Sensitive Conformal Human-Machine Interfaces

Zengyu Hui, Zhao Zhang, Yurong Wang, Runrun Zhang, Xin Liu, Mingjie Jiang, Feng Ju, Wenteng Hou, Zhongming Xia, Deya Wang, Pengfei Wang, Yangyang Pei, Ren Yan, Yan Zhang, Qiang Chen, Wei Huang, Gengzhi Sun