1. Bio-Optical Imaging Group; Singapore Bioimaging Consortium (SBIC); Agency for Science, Technology and Research, Singapore; 11 Biopolis Way, #01-02 Helios Singapore 138667
2. Department of Chemistry, Division of Biomedical Engineering; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong
3. Department of Chemical and Biomolecular Engineering; 4 Engineering Drive 4; National University of Singapore; Singapore 117585
4. Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR), Singapore; 3 Research Link Singapore 117585
5. School of Physics; National University of Ireland; Galway Ireland