1. Department of Chemistry, International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
2. Department of Chemistry and Chemical & Biomedical Engineering, University of New Haven, West Haven, Connecticut 06516, United States
3. Department of Materials Science & Engineering, Northwestern University, Evanston, Illinois 60208, United States
4. Dupont-Northwestern-Dow Collaborative Access Team (DND-CAT) Synchrotron Research Center, Northwestern University, Argonne, Illinois 60208, United States
5. Department of Chemical & Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
6. Department of Biomedical Engineering, Department of Pharmacology, Chemistry of Life Processes Institute, Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States