1. College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
2. Research Institute of Petroleum Engineering and Technology, Sinopec Shengli Oilfield, Dongying 257000, Shandong, P. R. China
3. School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China