Magnetic Nanoparticles (IMAGE) Children's Hospital of Philadelphia Caption Magnetic nanoparticles loaded into endothelial cells show a red fluorescent glow on the struts of a steel stent. Credit The Children's Hospital of Philadelphia 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.