1. School
of Materials Science and Engineering, School of Life Sciences, Tianjin University, Tianjin Engineering Center for Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, People’s Republic of China
2. Laboratory
of Controllable Nanopharmaceuticals, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, People’s Republic of China
3. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
4. College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Chemical Biology Key Laboratory of Hebei Province, Hebei University, Baoding 071002, People’s Republic of China
5. Laboratory
of Molecular Imaging, Department of Radiology, Howard University, Washington, D.C. 20060, United States