Lanmodulin Structure (IMAGE) Penn State Caption A structural model of the compact metal-bound form of the lanmodulin protein, which is 100-million times better at binding to lanthanides--the rare-earth metals used in smartphones and other technologies--than to other metals like calcium. Credit Penn State Usage Restrictions Credit must be provided alongside image. 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.