Nanoparticles (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption 3D atomic structure of platinum nanoparticles. Each nanoparticle has a diameter of 2-3 nm and contains approximately 600 atoms. Credit Courtesy of IBS 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.