Rare earth elements, vital for cutting-edge technologies like electric cars and wind turbines, could undergo a groundbreaking transformation thanks to a remarkable bacterium found in English oak buds. Scientists have discovered that a specific protein derived from the bacterium Hansschlegelia quercus holds the potential to revolutionize the separation process of these valuable elements. [1]

Figure 1. Oak Buds.

Figure 1 shows Oak Buds. Conventional industrial methods of separating rare earth elements involve a complex, energy-intensive process, often requiring numerous steps and the use of hazardous chemicals. However, researchers, led by Joseph Cotruvo Jr. from Pennsylvania State University, have demonstrated that the bacterial protein can distinguish between lighter and heavier rare earth elements. Through their investigations into hundreds of bacterial proteins, they identified the potential of proteins from the metrolyph class to separate rare earth elements from non-rare earth elements. By observing that the protein tends to bind to multiple units of itself when encountering lighter rare earth elements, while remaining singular when interacting with heavier ones, the team achieved a significant breakthrough. [1]

This remarkable finding led to a streamlined method for separating neodymium and dysprosium—essential elements used in permanent magnets—using a single chemical step at room temperature, without the need for toxic substances. Whether obtained from mining or recycled tech products, this approach holds promise for efficiently processing rare earth elements. [1]

While this research represents a proof-of-concept achievement, challenges remain in scaling up the biochemical approach for industrial application. Jason Love, an expert from the University of Edinburgh, acknowledges the need to overcome the obstacle of manufacturing sufficient quantities of the protein to facilitate large-scale separation processes. [1]

In summary, the discovery of this oak tree bacterium and its protein's unique capabilities marks a significant step toward simplifying the processing of rare earth elements, opening doors to a more sustainable and environmentally friendly future for advanced technologies. [1]

References:

1. https://www.newscientist.com/article/2376440-bacterium-from-oak-trees-could-help-process-rare-earth-elements/

Cite this article:

Hana M (2023), Oak Tree Bacteria Revolutionize Rare Earth Element Processing, AnaTechmaz, pp.452