1. Departments of Chemistry and Biological Sciences, Weinberg College of Arts and Sciences
2. Department of Biomedical Engineering, McCormick School of Engineering and Applied Science
3. Department of Mechanical Engineering, McCormick School of Engineering and Applied Science
4. and Atomic and Nanoscale Characterization Experimental Center, Northwestern University, Illinois 60208
5. NanoCarbon Research Institute, Ltd., Asama Research Extension Center, Shinshu University, 3-15-1 Tokita, Ueda, Nagano 386-8567, Japan
6. Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois 60611