Detection of microplastics through an optical sensor array using nano-graphene oxide and fluorophore conjugates

= 0.025. The sensor's applicability was also evaluated in river, lake, and tap water and in the presence of environmental interferents. The system also detected the presence of MP leachates in water stored in different plastic containers at room temperature. Packaged bottled water, with varying manufacturing dates, also showed significant responses to the sensor array at a very low concentration. This indicates that the designed sensor array can effectively verify water quality by sensing microplastic contamination.