Iron-Oxide Nanoparticles Embedded in a Polystyrene Matrix (image) University of Cincinnati Share Print E-Mail Caption This is a view of iron-oxide nanoparticles embedded in a polystyrene matrix as seen via a transmission electron microscope. These nanoparticles, when heated, can be applied to cancer cells in order to kill those cells. Credit University of Cincinnati Usage Restrictions None Share Print E-Mail 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.