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Nanometre-size products of uranium bioreduction

Author

Listed:
  • Yohey Suzuki

    (University of Wisconsin–Madison
    Japan Marine Science and Technology Centre)

  • Shelly D. Kelly

    (Argonne National Laboratory)

  • Kenneth M. Kemner

    (Argonne National Laboratory)

  • Jillian F. Banfield

    (University of Wisconsin–Madison
    University of California)

Abstract

One strategy that is being pursued to tackle the international problem of actinide contamination of soils, sediments and water is to use microbial activity to 'fix' these radionuclides into an insoluble form that cannot be readily dispersed. Here we show that uraninite (UO2) particles formed from uranium in sediments by bacterial reduction are typically less than 2 nanometres across and that the small size has important implications for uraninite reactivity and fate. Because these tiny particles may still be transported in an aqueous environment, precipitation of uranium as insoluble uraninite cannot be presumed to immobilize it.

Suggested Citation

  • Yohey Suzuki & Shelly D. Kelly & Kenneth M. Kemner & Jillian F. Banfield, 2002. "Nanometre-size products of uranium bioreduction," Nature, Nature, vol. 419(6903), pages 134-134, September.
    • Handle: RePEc:nat:nature:v:419:y:2002:i:6903:d:10.1038_419134a
    DOI: 10.1038/419134a
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    Cited by:

    1. Ja-Young Yoon & In-Hyun Nam & Min-Ho Yoon, 2021. "Biosorption of Uranyl Ions from Aqueous Solution by Parachlorella sp. AA1," IJERPH, MDPI, vol. 18(7), pages 1-9, March.

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