1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
2. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
3. Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
4. Mucosal Immunology and Biology Research Center, Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
5. Department of Pediatrics, Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
6. Harvard Medical School, Boston, Massachusetts 02115, United States
7. Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
8. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States