1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, China
2. Division of NanoMedicine, David Geffen School of Medicine, UC Center for the Environmental Impact of Nanotechnology, UCLA Center for Nano Biology and Predictive toxicology, California Nanosystem Institute, University of California, Los Angeles, California 90095, United States
3. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China