We have developed a sensor platform based on the atomically-thin nanomaterial ‘graphene’. Thanks to graphene’s exceptional properties, it is possible to offer lab-like sensitivity in a small, portable device at an affordable price. 

Using these single-layer nanomaterials, we have developed a handheld tool that can perform biomolecular interaction analysis for drug discovery. 

The graphene-channel is sensitive to electric charges. When the analyte binds to the immobilised antibody on the surface, this changes the electric charge in the vicinity of the graphene. As a result, the resistance of the graphene-layer changes, which is the signal that our reader detects.