1. Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
2. Department
of Chemistry, Hong Kong Branch of Chinese National Engineering Research
Centre for Tissue Restoration and Reconstruction, HKUST Jockey Club
Institute for Advanced Study, Institute of Molecular Functional Materials,
Division of Biomedical Engineering, State Key Laboratory of Molecular
Neuroscience, Division of Life Science, Hong Kong University of Science and Technology, Kowloon, Clear Water Bay, Hong Kong
3. SCUT-HKUST Joint Research Laboratory, Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, China
4. Institute
of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634