1. Department of Medical Imaging The 2nd Affiliated Hospital Medical College Shantou University Shantou P. R. China
2. Department of Physics Shantou University Shantou P. R. China
3. Department of Physics University of Hong Kong Hong Kong SAR P. R. China
4. Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction The Hong Kong University of Science and Technology Kowloon P. R. China
5. Division of Life Science The Hong Kong University of Science and Technology Kowloon P. R. China
6. HKUST Fok Ying Tung Research Institute Guangzhou P. R. China
7. Department of Chemistry The Hong Kong University of Science and Technology Kowloon P. R. China
8. Department of Chemical and Biological Engineering The Hong Kong University of Science and Technology Kowloon P. R. China
9. School of Science and Engineering Shenzhen Key Laboratory of Functional Aggregate Materials The Chinese University of Hong Kong Shenzhen P. R. China