1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center of Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China
2. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. School of Basic Medical Science Zhengzhou University Henan 450001 China
4. GBA Research Innovation Institute for Nanotechnology Guangdong 510700 P. R. China