1. Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 P. R. China
2. University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine Shanghai Jiao Tong University Shanghai 200240 P. R. China
4. Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 P. R. China
5. Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University 500 Dongchuan Road Shanghai 200127 P. R. China