1. Key Laboratory of Radiation and Technology of Education Ministry of China
2. Institute of Nuclear Science and Technology
3. Sichuan University
4. Chengdu
5. P. R. China
6. School of Chemistry
7. Beijing Advanced Innovation Center for Biomedical Engineering
8. Beihang University
9. Beijing 100191
10. CAS Key Laboratory of Nanosystem and Hierachical Fabrication
11. CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
12. Beijing 100190