1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. Center for Mechanics of Solids; Structures and Materials; Department of Aerospace Engineering and Engineering Mechanics; The University of Texas at Austin; Austin TX 78712 USA
4. CAS Center for Excellence in Brain Science and Intelligence Technology; 320 Yue Yang Road Shanghai 200031 China