1. Department of Materials Science and Engineering, Delaware Biotechnology Institute, University of Delaware, Newark, Delaware.
2. Department of Medicine, Center for Biomedical Engineering, Harvard Medical School, Brigham and Women's Hospital, Cambridge, Massachusetts.
3. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts.
4. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts.
5. Department of Biological Sciences, University of Delaware, Newark, Delaware.