1. Department of Materials Science and Engineering College of Engineering North Carolina State University Raleigh NC 27695 USA
2. Department of Biomedical Engineering College of Engineering North Carolina State University Raleigh NC 27695 USA
3. William G. Enloe High School Raleigh NC 27610 USA
4. Department of Physics North Carolina State University Raleigh NC 27695 USA
5. Interdisciplinary Nanoscience Center (iNANO) Aarhus University 8000 Aarhus C Denmark