Has graphene lived up to the hype?

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It was hailed as a wonder material that would transform industry – and all our lives. But 20 years on, companies are still racing to commercialise it. We speak to the people working with graphene and find out what sort of products their developing. Produced and presented by James Graham (Image: Graphene slurry, containing graphene and polymer binders, sits in a beaker inside a laboratory at the National Graphene Institute facility, part of the The University of Manchester. Credit: Getty Images)