Silver-molybdate nanocluster structure (IMAGE) Tsinghua University Press Caption The silver-molybdate nanocluster is supported by thiolate and phosphine molecules, which serve as protective ligands that surround the silver nanocluster to increase stability and uniformity. Silver atoms are blue, molybdate ions are orange and red, thiolate ligands are yellow and gray and phosphine ligands are purple and gray. Credit Polyoxometalates, Tsinghua University Press Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original 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.