1. Cancer Research Center School of Medicine Xiamen University Xiamen 361000 P. R. China
2. Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350007 P. R. China
3. Xiamen Institute of Rare Earth Materials Institute of Haixi Chinese Academy of Sciences Xiamen 361000 P. R. China
4. Department of Radiation Oncology Xiamen Cancer Center Xiamen Key Laboratory of Radiation Oncology The First Affiliated Hospital of Xiamen University School of Medicine Xiamen University Xiamen 361000 P. R. China