1. Key Laboratory of 3D Printing Technology in Stomatology, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
2. College of Physics, Dalian University of Technology, Dalian, China
3. School of Chemical Engineering, University of Birmingham, Birmingham, UK
4. Biomaterials & Tissue Engineering Group, School of Dentistry, University of Leeds, Leeds, UK