Here’s How Graphene Makes Photodetectors 100,000 Times More Responsive Than Silicon.  Two years ago, we covered research out of the University of Manchester that demonstrated that graphene-based membranes could serve as a filter for cleaning up nuclear waste at nuclear power plants.  While it’s not clear that this particular application for the graphene membranes ever made much headway in nuclear waste cleanup, they did discover an interesting phenomenon about these graphene membranes in the ensuing two years: protons can transport through graphene.