1. Department of Biomedical Engineering, University of California, Irvine, California 92697, United States
2. Biological Design Center, Boston University, Boston, Massachusetts 02215, United States
3. Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
4. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
5. Department of Chemistry, University of California, Irvine, California 92697, United States
6. Department of Molecular Biology & Biochemistry, University of California, Irvine, California 92697, United States