[By ]{style=“font-family: "helvetica neue" , "arial" , "helvetica" , sans-serif;”}[Emma Pewsey, Department of Materials Science, University of Cambridge.]{style=“font-family: "helvetica neue" , "arial" , "helvetica" , sans-serif;”} [I’m a relative newcomer to biosciences – at school, physics and chemistry were more my thing. However, starting a PhD on the corrosion of metal implants in the human body meant I needed to brush up on my biology.