Engineering biomaterials for the recovery of rare earth elements

Trends Biotechnol. 2024 May;42(5):575-590. doi: 10.1016/j.tibtech.2023.10.011. Epub 2023 Nov 18.

Abstract

The escalating global demand for rare earth elements (REEs) and the overabundance of REE-containing waste require innovative technologies for REE recovery from waste to achieve a sustainable supply of REEs while reducing the environmental burden. Biosorption mediated by peptides or proteins has emerged as a promising approach for selective REE recovery. To date, multiple peptides and proteins with high REE-binding affinity and selectivity have been discovered, and various strategies are being exploited to engineer robust and reusable biosorptive materials for selective REE recovery. This review highlights recent advances in discovering and engineering peptides and proteins for REE recovery. Future research prospects and challenges are also discussed.

Keywords: biosorption; peptides and proteins; rare earth elements; selective REE recovery.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Biocompatible Materials* / chemistry
  • Metals, Rare Earth* / chemistry
  • Peptides / chemistry
  • Protein Engineering / methods

Substances

  • Metals, Rare Earth
  • Biocompatible Materials
  • Peptides