1. Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA
2. Center for Bio‐Integrated Electronics Northwestern University Evanston IL 60208 USA
3. Department of Electrical Engineering University of Texas at Arlington Arlington TX 76019‐0072 USA
4. Department of Engineering Mechanics Center for Mechanics and Materials Tsinghua University Beijing 100084 China
5. Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory Beckman Institute for Advanced Science and Technology University of Illinois Urbana‐Champaign Urbana IL 61801 USA
6. Department of Chemical and Biomolecular Engineering University of Illinois Urbana‐Champaign Urbana IL 61801 USA
7. Department of Mechanical Engineering Northwestern University Evanston IL 60208 USA
8. Center for Developmental Therapeutics Northwestern University Evanston IL 60208 USA
9. Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea
10. Department of Civil and Environmental Engineering Northwestern University Evanston IL 60208 USA
11. Chemistry Life Processes Institute Northwestern University Evanston IL 60208 USA
12. Department of Biomedical Engineering Department of Neurological Surgery Department of Electrical Engineering and Computer Science Department of Mechanical Engineering, and Department of Chemistry Simpson Querrey Institute for BioNanotechnology Northwestern University Evanston IL 60208 USA