Nanoparticles of Magnetite (IMAGE) University of Delaware Caption Random (left) and mono-sized (right) nanoparticles of magnetite. The former were used in the UD study. Image courtesy of John Xiao, University of Delaware. Credit Prof. John Xiao/University of Delaware Usage Restrictions Image must include credit to University of Delaware 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.