1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, P.R. China,
2. School of Environmental and Materials Engineering, Yantai University, Yantai, Shandong Province, P.R. China, and
3. Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, P.R. China