1. School of Chemical and Biomedical Engineering; Nanyang Technological University; 70 Nanyang Drive Singapore 637457 Singapore
2. School of Pharmaceutical Sciences and Innovative Drug Research Centre; Chongqing University; Chongqing 401331 China
3. Division of Metabolic Medicine; Lee Kong Chian School of Medicine; Nanyang Technological University; 59 Nanyang Drive Singapore 636921 Singapore
4. Department of Chemistry; Nanchang University; Nanchang 330031 China
5. NTU-Northwestern Institute for Nanomedicine; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore