1. Shenyang Key Laboratory of Functional Drug Carrier Materials
2. School of Pharmacy
3. Shenyang Pharmaceutical University
4. Shenyang
5. P. R. China
6. Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province
7. 110016 Shenyang
8. Shenyang National Laboratory for Material Science
9. Institute of Metal Research
10. Chinese Academy of Sciences