Hybrid Au/Fe Nanoparticles (IMAGE) University of Helsinki Caption Hybrid Au/Fe nanoparticles can grow in an unprecedentedly complex structure with a single-step fabrication method. Credit Research group 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.