Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt

by introducing highly hydratable salt Yuanyuan Bai, Baohong Chen, Feng Xiang, Jinxiong Zhou, Hong Wang, and Zhigang Suo Electronic Materials Research Laboratory, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China State Key Laboratory for Strength and Vibration of Mechanical Structures, International Center for Applied Mechanics and School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China School of Engineering and Applied Sciences, Kavli Institute of Bionano Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA