| Affiliation: | 1. Department of Materials Science and Engineering, Division of Biological Engineering, Massachusetts Institute of Technology, 16‐244, 77 Massachusetts Ave., Cambridge, MA 02139, USA;2. Macromolecular Science Team, U.S. Army Research, Development and Engineering Command, Natick Solider Center, Kansas St., Natick, MA 01760, USA;3. Department of Materials Science and Engineering, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 8‐237, 77 Massachusetts Ave., Cambridge, MA 02139, USA |
