1. State Key Laboratory of Chemical Engineering
2. Center for Chemistry of High-Performance & Novel Materials
3. Department of Chemistry
4. Zhejiang University
5. Hangzhou 310027
6. Laboratory of Molecular Imaging and Nanomedicine
7. National Institute of Biomedical Imaging and Bioengineering
8. National Institutes of Health
9. Bethesda
10. USA
11. University at Buffalo
12. The State University of New York
13. Buffalo
14. New York 14260-3000
15. Departments of Diagnostic Radiology, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and Faculty of Engineering
16. National University of Singapore
17. Singapore