1. Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
2. Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education), Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
3. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
4. Shandong Center for Food and Drug Evaluation & Inspection, Jinan 250014, China