1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
2. College of Materials Science and Engineering
3. Donghua University
4. Shanghai 201620
5. China
6. Department of Radiology
7. Shanghai Tenth People's Hospital
8. School of Medicine
9. Tongji University
10. Shanghai 200072
11. Department of Chemistry
12. National University of Singapore
13. Singapore 117543
14. Singapore