1. State
Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional
Polymer Materials, Ministry of Education, Institute of Polymer Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
2. University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
3. University of Groningen and University Medical Center of Groningen, Department of Orthodontics, Hanzeplein 1, 9700
RB Groningen, The Netherlands