Lanmodulin‐Decorated Microbes for Efficient Lanthanide Recovery
Name
Advanced Materials - 2025 - Gut - Lanmodulin‐Decorated Microbes for Efficient Lanthanide Recovery.pdf
Description
Published version
Size
2.61 MB
Format
Adobe PDF
Checksum (MD5)
155f44e117ec0d449a5007879f145757
Author(s)
Gut, Melanie
Wilhelm, Tatum
Beniston, Olivia
Ogundipe, Safiyyah
Kuo, Chao‐Chi
Nguyen, Kristine
Furst, Ariel
Date Issued
January 16, 2025
Journal
Advanced Materials
Publisher
Wiley
Citation
M. Gut, T. Wilhelm, O. Beniston, S. Ogundipe, C.-C. Kuo, K. Nguyen, A. Furst, Lanmodulin-Decorated Microbes for Efficient Lanthanide Recovery. Adv. Mater. 2025, 37, 2412607.
Version
Final published version
Abstract
Rare earth elements (REEs) are essential for many clean energy technologies.Yet, they are a limited resource currently obtained through carbon-intensivemining. Here, bio-scaffolded proteins serve as simple, effective materials forthe recovery of REEs. Surface expression of the protein lanmodulin (LanM) onE. coli, followed by freeze-drying of the microbes, yields a displayed proteinmaterial for REE recovery. Four REE cations (Y3+, La 3+, Gd3+, and Tb3+) arecaptured efficiently, with over 80% recovery even in the presence ofcompetitive ions at one-hundred-fold excess. Moreover, these materials arereadily integrated into a filter with high capture capacity (12 mg g−1 dry cellweight) for the selective isolation and recovery of REEs from complexmatrices. Further, the proteins in the filter remain stable over tenbind-and-release cycles and a week of storage. To improve the deployability ofthis filter material, a simple colorimetric assay with the dyealizarin-3-methyliminodiacetic acid is incorporated. The assay can beperformed in under 5 min, enabling rapid monitoring of REE recovery andfilter efficiency. Overall, this low-cost, robust material will enableenvironmentally friendly recycling and recovery of critical elements.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/adma.202412607
