Professor John McGeehan, stands next to equipment at the Diamond

Professor John McGeehan, an X-ray Crystallographer at the University of Portsmouth, stands next to equipment at the Diamond Light Source, the UK national synchrotron, that he used to reveal the atomic structure of an enzyme his team has subsequently engineered that can digest a common form of plastic and may in future help in the fight against pollution, in Didcot, Britain, April 13, 2018. Picture taken April 13, 2018. REUTERS/Stuart McDill