Professor David O'Hagan studied chemistry at the University of Glasgow (1982) and Ph.D (1985) at the University of Southampton with Professor John A Robinson. After a postdoctoral year at the Ohio State University with Professor Heinz G. Floss, he was appointed to the University of Durham (1986) where he developed an interest in fluorine Chemistry. He remained at Durham until 2000 before moving to his current position as Professor at the University of St Andrews. His research interests extend from the synthesis and properties of organo-fluorine compounds, fluorination enzymology, fluorine-18 chemistry for positron emission tomography (PET) and through to fluorinated organic materials.