1. College of Chemical and Biological Engineering Zhejiang University Hangzhou Zhejiang Province 310027 P. R. China
2. Department of Nuclear Medicine and PET-CT Center The Second Hospital of Zhejiang University School of Medicine Hangzhou Zhejiang Province 310009 P. R. China
3. Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM) Nanjing Tech. University Nanjing Jiangsu Province 211816 P. R. China
4. State Key Laboratory of Radiation Medicine and Protection School for Radiological and interdisciplinary Sciences (RAD-X) Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University Suzhou Jiangsu Province 215123 P. R. China
5. Ningbo Research Institute Zhejiang University Ningbo Zhejiang Province 315100 P. R. China
6. MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou Zhejiang Province 310027 P. R. China
7. Department of Chemistry and the Tsinghua Center for Frontier Polymer Research Tsinghua University Beijing 100084 P. R. China