1. Affiliated Stomatological Hospital, Nanchang University, Nanchang, Jiangxi 330006, P. R. China
2. Key Laboratory of Oral Biomedicine, Nanchang University, Nanchang, Jiangxi 330006, P. R. China
3. National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P. R. China
4. College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, P. R. China