Gold Nanoparticles 'Smell' Cancer (image) University of Massachusetts at Amherst Caption Gold nanoparticles (at left) with green fluorescent protein (GFP) 'smell' different cancer types in much the same way our noses identify and remember different odors. At right, the distinct protein levels in a cancer interact with the particle to generate patterns used to identify cancer type. Credit UMass Amherst Usage Restrictions None 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.