1. Departments of Chemistry and Chemical & Biomolecular Engineering, National University of Singapore, 119077, Singapore
2. Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore
3. Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 639798, Singapore
4. Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
5. Department of Radiation Science and Technology, Delft University of Technology, Delft 2629 JB, Netherlands
6. Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States