Snapshot 28R (IMAGE) Elhuyar Fundazioa Caption 3D visualizations (obtained by electron tomography) of gold nanoparticles with chemically-grown quasi-helical (chiral) features, which provide them with a peculiar ability to interact with circularly polarized light. Credit (c) Adrián Pedrazo Tardajos, University of Antwerp. 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.