Supramolecular Assembly of Lanthanide-Binding Tag Peptides for Aqueous Separation of Rare Earth Elements.

ABSTRACT: Selective and eco-friendly separation and purification methods for rare earth elements (REEs) are necessary to meet the increasing demand for these valuable metals, which are extensively used in modern electronics and clean energy technologies. Mining feedstocks consist of REE mixtures as stable trivalent cations (Ln³⁺) that are difficult to separate due to their identical charge and similar size. Lanthanide-binding tags (LBTs), peptide chelates that coordinate Ln³⁺ in binding pockets, show promise as selective, high-affinity extractants. We demonstrate that the LBT variant LBTLLA^5-, designed for high selectivity for Tb³⁺, is an effective extractant, forming complexes with REEs in solution that subsequently organize into self-assembling structure

SUBMITTER: Ortuno Macias LE 

PROVIDER: S-EPMC12548334 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature