1. State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment
2. School of Electromechanical Engineering
3. Guangdong University of Technology
4. Guangzhou 510006
5. China
6. Department of Chemical and Biological Engineering
7. William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
8. The Hong Kong University of Science and Technology
9. Kowloon
10. Hong Kong