Figure 3 (IMAGE) Nagoya University Caption An unknown liquid sample containing various microplastics (left) is passed over the porous metal surface. Raman spectroscopy is then performed on the metal foam surface (right), and the scattered light is analyzed with a machine learning algorithm trained to accurately identify microplastics in complex mixtures. Credit Olga Guselnikova Usage Restrictions Credit must be given where image is used License Original 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.