Abstract
The conductive pili, or nanowires, of the bacterium Geobacter sulfurreducens carry a catalytically active uranium reductase that converts soluble uranium (IV), which is toxic, into a mineral form that is insoluble and thus no longer toxic, according to Gemma Reguera and her colleagues at Michigan State University in East Lansing. These bacteria may prove useful for treating sites contaminated with this toxic metal. Details appear in the September 6, 2011, Proceedings of the National Academy of Sciences (doi:10.1073/pnas.1108616108).
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