1. School of Electronic and Information Engineering Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement Changchun University Changchun 130022 China
2. Department of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USA
3. Department of Materials Science and Engineering University of California, Los Angeles Los Angeles CA 90095 USA
4. Tsinghua‐Berkeley Shenzhen Institute and Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
5. Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 P. R. China