1. Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
2. Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
3. Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
4. Department of Radiation Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
5. National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
6. Departments of Oncology and Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
7. Center of Applied Nanomedicine, National Cheng Kung University, Tainan 704, Taiwan
8. Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan