Graphene producer's shares jump by 40% in market debut …

Graphene is already used in tennis rackets, with future applications including aircraft bodies and membranes for DNA sequencing. Photograph: Shaun Botterill/Getty Images for HEADA British firm which has found a way to produce industrial quantities of graphene, the wonder material expected to revolutionise the fields of medicine and manufacturing, saw its share price rise 40% during its stock market debut […]