Well, this effect was discovered last year <a href="http:&#x2F;&#x2F;cleantechnica.com&#x2F;2015&#x2F;09&#x2F;10&#x2F;single-layer-graphene-superconductor&#x2F;" rel="nofollow">http:&#x2F;&#x2F;cleantechnica.com&#x2F;2015&#x2F;09&#x2F;10&#x2F;single-layer-graphene-su...</a> (at ~5K). The new breakthrough seems to be in manufacturing.