1. School of Life Science Beijing Institute of Technology No.5 South Zhong Guan Cun Street Beijing 100081 China
2. School of Materials Science and Engineering Beijing Institute of Technology China
3. Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) Department of Radiation Oncology Peking University Cancer Hospital & Institute China
4. Institute of Engineering Medicine Beijing Institute of Technology China
5. Shimadzu (China) Co., LTD, Beijing Branch Beijing 100020 P. R. China