1. Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou, Zhejiang 310029, China
2. State Key Laboratory for Infectious Diseases Diagnosis and Treatment, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
3. Life Sciences Division, Lawrence Berkeley National Laboratory, Mailstop 977, 1 Cyclotron Road, Berkeley, California 94720, United States
4. Life Sciences College, Fudan University, Shanghai 200433, PR China
5. School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, PR China
6. Agilent Laboratory, 5301 Stevens Creek Boulevard, Santa Clara, California 95051-7201, United States