1. Fiber & Polymer Science Program College of Textiles, North Carolina State University, Campus Box 8301, 2401 Research Drive, Raleigh, North Carolina 27695-8301, United States
2. Department
of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695-7919, United States
3. North Carolina School
of Science and Mathematics, 1219 Broad
Street, Durham, North Carolina 27705, United States
4. William G. Enloe Magnet & GT High School, 128 Clarendon Crescent, Raleigh, North Carolina 27610-2408, United States