1. School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Jiangsu 210046, China
2. Center for Drug Delivery System, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
3. Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 1688, Meiling Road, Nanchang 330004, China