Graphene-Based Sensor (IMAGE) Moscow Institute of Physics and Technology Caption Scientists have proposed a graphene-based sensor that can 'sniff out' a single molecule of explosives. Credit Graphene-based sensor Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.