1. Department of Biomedical, Biological, and Chemical Engineering, University of Missouri, Columbia, MO 65211, USA.
2. Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.
3. Washington University Pain Center and Department of Anesthesiology, Washington University, St. Louis, MO 63110, USA.
4. Washington University School of Medicine, 660 S. Euclid Ave., Box 8054, St. Louis, MO 63110, USA.
5. Biomedical Engineering, College of Engineering, The University of Arizona, Bioscience Research Laboratories, 1230 N. Cherry Ave., Tucson, AZ 85721, USA.
6. Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA.
7. Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA.
8. Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA.
9. College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
10. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30318, USA.
11. Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA.
12. Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA.
13. Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
14. Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
15. Departments of Neuroscience and Biomedical Engineering, Washington University, St. Louis, MO 63110, USA.