[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
[3] NYU, Mt Sinai Sch Med, Dept Physiol & Biophys, Struct Biol Program, New York, NY 10029 USA