GRAPHENE DIGITAL BIOSENSORS FOR COVID-19 FIELD TESTING

Grapheal is developing a diagnostic test based on nasal sampling to screen Covid-19 infection rapidly in response to the current sanitary crisis. This all-electronic test is an antigen immunoassay detecting the virus's presence. It allows the result to be electronically captured at the heart of the device, without molecular amplification, which speeds up the diagnosis and enables direct and secure digital transfer. 

Video showing the principle of operation

When sensitized with appropriate antibodies, which target the proteins at the surface of the SARS-CoV-2 virus, graphene sees its electrical conductance affected by the virus's presence. It can detect the virus efficiently in body fluids.