1. Department of Materials Science and Engineering Center for Bio‐Integrated Electronics Simpson Querrey Institute for Nano/Biotechnology Northwestern University Evanston IL 60208 USA
2. AML Department of Engineering Mechanics Interdisciplinary Research Center for Flexible Electronics Technology Tsinghua University Beijing 100084 P. R. China
3. Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
4. Center for Bio‐Integrated Electronics Northwestern University Evanston IL 60208 USA
5. Department of Mechanical Engineering Northwestern University Evanston IL 60208 USA
6. Department of Dermatology Feinberg School of Medicine Center for Bio‐Integrated Electronics Simpson Querrey Institute for Nano/Biotechnology Northwestern University Chicago IL 60611 USA
7. Departments of Civil and Environmental Engineering and Mechanical Engineering Center for Engineering Health, and Skin Disease Research Center Northwestern University Evanston IL 60208 USA
8. Departments of Materials Science and Engineering, Biomedical Engineering, Chemistry, Mechanical Engineering, Electrical Engineering and Computer Science, and Neurological Surgery Center for Bio‐Integrated Electronics Simpson Querrey Institute for Nano/Biotechnology McCormick School of Engineering and Feinberg School of Medicine Northwestern University Evanston IL 60208 USA