The graphene filled in the smaller hole with fresh
Due to their extraordinary abilities, graphene and other one-atom-thick molecules like carbon nanotubes have enormous potential for use in fields from electronics to medicine. For example, graphene is physically strong, transparent, flexible, and a great conductor of both electricity and heat—and now the two-dimensional carbon molecule can add another power to its roster: self-healing. When researchers made holes in a graphene sheet, the molecule rebuilt its own structure using new carbon atoms. This ability might help researchers grow graphene in large quantities and specific shapes.