1. Collaborative Innovation Center for Nanomaterials & Devices
2. College of Physics
3. Qingdao University
4. Qingdao 266071
5. China
6. Industrial Research Institute of Nonwovens & Technical Textiles
7. College of Textiles & Clothing
8. Department of Natural Science
9. Biochemistry & Molecular Biology
10. University of Massachusetts Amherst
11. Amherst 01003
12. USA
13. Center for Nanofibers & Nanotechnology
14. Faculty of Engineering
15. National University of Singapore
16. Singapore