Lanmodulin‐Decorated Microbes for Efficient Lanthanide Recovery

dry cell weight) for the selective isolation and recovery of REEs from complex matrices. Further, the proteins in the filter remain stable over ten bind-and-release cycles and a week of storage. To improve the deployability of this filter material, a simple colorimetric assay with the dye alizarin-3-methyliminodiacetic acid is incorporated. The assay can be performed in under 5 min, enabling rapid monitoring of REE recovery and filter efficiency. Overall, this low-cost, robust material will enable environmentally friendly recycling and recovery of critical elements.