1. Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
2. Department of Stomatology, No. 964 Hospital, Changchun, Jilin 130021, P. R. China
3. Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
4. School of Chemistry & Environmental Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, PR China
5. Chongqing Research Institute, No. 618 Liangjiang Avenue, Longxing Town, Yubei District, Chongqing City 401135, China