1. Innovative Centre for Flexible Devices (iFLEX) Max Planck–NTU Joint Lab for Artificial Senses School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
2. School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
3. International Joint Research Laboratory for Biointerface and Biodetection State Key Lab of Food Science and Technology and School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 P. R. China
4. Institute of Materials Research and Engineering the Agency for Science, Technology and Research 2 Fusionopolis Way, Innovis, #08‐03 Singapore 138634 Singapore
5. Nursing Department Shanghai General Hospital School of Medicine Shanghai Jiaotong University Shanghai 200080 P. R. China
6. Trauma and Emergency Center Shanghai General Hospital School of Medicine Shanghai Jiaotong University Shanghai 200080 P. R. China