Graphene consists of one-atom-thick layers of carbon atoms arranged in two-dimensional hexagons,[REF][REF] and is the thinnest material in the world, as well as one of the strongest and hardest [REF].
] Geim was involved in the development of a biomimetic adhesive which became known as gecko tape[REF]-so called because of the adhesiveness of gecko feet-research of which is still in the early stages [REF].