Fluorescence microscopy (IMAGE) Universität Bayreuth Caption Anja Ramsperger M. Sc. uses a fluorescence microscope to examine the cellular uptake of microplastic particles from fresh or seawater. Credit Photo: UBT. / Chr. Wissler 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.