Nigel S. Scrutton graduated from King's College University of London before obtaining PhD and ScD degrees at the University of Cambridge. He is currently BBSRC Professorial Fellow and Professor of Enzymology at the University of Manchester. He has a longstanding interest in structural and mechanistic enzymology and has made a number of major contributions to the field of H-tunneling in biological systems. He has also been involved in interdisciplinary research programmes addressing the mechanisms of electron and hydrogen transfer in biology. Rudolf K. Allemann obtained a Dipl. Chem from the ETH in Zurich. He then studied for a PhD at Harvard University and the ETH-Zurich where he obtained Dr. sc. Nat. in 1988. He is currently a Research Professor and head of Chemical Biology at Cardiff University. His research interests focus on the physical and chemical basis of enzyme catalysis and structural and synthetic biology. He has also been involved in the de novo design of peptides that catalyze reactions with enzyme-like characteristics. Recently, he has pioneered the development of biophotonic nanoswitches for the control of protein-DNA and protein-protein interactions.