Researchers at Stanford were able to construct new substance with a honeycomb or hexagonal structure that looks like graphene atom-by-atom from carbon monoxide atoms on a clean sheet of copper using a Scanning Tunneling Microscope. The molecular graphene has electron transport properties that are similar to graphene. The technique should allow the fabrication of new materials with designer electronic properties that would provide better performance than natural materials like a designer copper with higher electrical conductivity, for example.