1. School of Chemical Engineering West China College of Stomatology State Key Laboratory of Oral Diseases Sichuan University Chengdu 610065 China
2. National Clinical Research Center for Oral Diseases State Key Laboratory of Oral Diseases Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu 610041 China
3. Department of Biomedical Engineering City University of Hong Kong Hong Kong 999077 China
4. Department of Ophthalmology The University of Hong Kong Hong Kong 999077 China
5. Science and Technology Achievement Incubation Center Kunming Medical University Kunming 650500 China
6. State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
7. Department of Mechanical Engineering The University of Hong Kong Hong Kong 999077 China