Dr. Edmund Tse is currently a Croucher Foundation Research Fellow in the laboratory of Professor Jacqueline K. Barton at the California Institute of Technology. Edmund's postdoctoral work focuses on developing biochemical assays to understand how DNA repair proteins containing [4Fe4S] clusters find and repair lesions efficiently and how DNA-mediated charge transport plays a role in cancer detection. The results reveal that the [4Fe4S] cluster in a DNA repair protein functions as a DNA-binding affinity switch. Previously, Edmund received his Ph.D. in chemistry at the University of Illinois at Urbana-Champaign working with Professor Andrew A. Gewirth and Professor Thomas B. Rauchfuss. As a Croucher Foundation Scholar, Edmund developed bio-inspired catalysts to facilitate the oxygen reduction reaction for advanced fuel cell technology and pioneered the assembly of lipid-modified electrochemical platforms to modulate the reaction pathways of proton-coupled electron transfer reactions that are central to many biological and energy conversion processes.