Atomic-scale structure of biogenic materials by total X-ray diffraction: A study of bacterial and fungal MnO x

V. Petkov, Y. Ren, I. Saratovsky, P. Pastén, S. J. Gurr, M. A. Hayward, K. R. Poeppelmeier, J. F. Gaillard

Research output: Contribution to journalArticle

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Abstract

Biogenic materials are produced by microorganisms and are typically found in a nanophase state. As such, they are difficult to characterize structurally. In this report, we demonstrate how high-energy X-ray diffraction and atomic pair distribution function analysis can be used to determine the atomic-scale structures of MnO x produced by bacteria and fungi. These structures are well-defined, periodic, and species-specific, built of Mn - O 6 octahedra forming birnessite-type layers and todorokite-type tunnels, respectively. The inherent structural diversity of biogenic material may offer opportunities for practical applications.

Original languageEnglish
Pages (from-to)441-445
Number of pages5
JournalACS nano
Volume3
Issue number2
DOIs
Publication statusPublished - Feb 24 2009

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Keywords

  • Biogenic materials
  • Manganese oxides
  • Structure determination
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Petkov, V., Ren, Y., Saratovsky, I., Pastén, P., Gurr, S. J., Hayward, M. A., Poeppelmeier, K. R., & Gaillard, J. F. (2009). Atomic-scale structure of biogenic materials by total X-ray diffraction: A study of bacterial and fungal MnO x. ACS nano, 3(2), 441-445. https://doi.org/10.1021/nn800653a