Tootfinder

Interfacial Rheology of Lanthanide Binding Peptide Surfactants at the Air-Water Interface
Stephen A. Crane, Felipe Jimenez-Angeles, Yiming Wang, Luis E. Ortuno Macias, Jason G. Marmorstein, Jiayi Deng, Mehdi Molaei, E. James Petersson, Ravi Radhakrishnan, Cesar de la Fuente-Nunez, Monica Olvera de la Cruz, Raymond S. Tu, Charles Maldarelli, Ivan J. Dmochowski, Kathleen J. Stebe

Interfacial Rheology of Lanthanide Binding Peptide Surfactants at the Air-Water Interface
Peptide surfactants (PEPS) are studied to capture and retain rare earth elements (REEs) at air-water interfaces to enable REE separations. Peptide sequences, designed to selectively bind REEs, depend crucially on the position of ligands within their binding loop domain. These ligands form a coordination sphere that wraps and retains the cation. We study variants of lanthanide binding tags (LBTs) designed to complex strongly with Tb$^{3+}$. The peptide LBT$^{5-}$ (with net charge -5) is known to…