Graphene,a two-dimensional wonder-fabric composed of a single layer of carbon atoms linked in a hexagonal chicken-wire pattern, has attracted intense interest for its phenomenal ability to conduct electricity. Now University of Illinois at Chicago researchers occupy used rod-shaped bacteria - precisely aligned in an electric field, and then vacuum-shrunk under a graphene sheet - to introduce nanoscale ripples in the fabric,causing it to conduct electrons differently in perpendicular directions.
Source: phys.org