1. Laboratory
of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
2. College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, China
3. Laboratory
of Chemical Physics, NIDDK, National Institutes of Health, Bethesda, Maryland 20892-0520, United States