1. Department of Life Science, Pohang University of Science and Technology, Pohang
790-784, Korea
2. Department
of Chemistry, New York University, New
York 10003, United States
3. Department of Chemistry and MedChem
Program of Life Sciences Institute, National University of Singapore, 117543 Singapore
4. College of Pharmacy, Suncheon National University, Suncheon 570-742, Korea
5. Laboratory of Bioimaging Probe
Development, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), 11 Biopolis
Way, #02-02 Helios Building, 138667 Singapore