1. Beijing Key Laboratory of Bioprocess; Beijing Advanced Innovation Center for Soft Matter Science and Engineering; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 P. R. China
2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
3. State Key Laboratory of Environmental Chemistry and Ecotoxicology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 P. R. China
4. University of Chinese Academy of Sciences; Beijing 100049 P. R. China
5. Beijing Institute of Nanoenergy and Nanosystems; National Center for Nanoscience and Technology (NCNST); Chinese Academy of Sciences; Beijing 100083 P. R. China
6. Department of Materials Science and Engineering; State University of New York at Stony Brook; Stony Brook NY 11790 USA
7. Key Laboratory of Molecular Imaging; The State Key Laboratory of Management and Control for Complex Systems; Institute of Automation; Chinese Academy of Sciences; Beijing 100190 P. R. China
8. School of Chemical Sciences; The University of Auckland; Auckland 1142 New Zealand