1. State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
2. Xpand Biotechnology BV; Prof. Bronkhorstlaan 10; bld 48, 3723MB Bilthoven The Netherlands
3. Department of Biomaterials Science and Technology; MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente; P.O. Box 217, 7500AE Enschede The Netherlands
4. School of Engineering and Materials Science; Queen Mary University of London; Mile End Road, E1 4NS London United Kingdom
5. Department of Tissue Regeneration; MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente; P.O. Box 217, 7500AE Enschede The Netherlands
6. Institute of Physics and Technology; Sichuan University; Chengdu 610065 China