Nanocrystalline Todorokite-Like Manganese Oxide Produced by Bacterial Catalysis

Hack Sung Kim, Pablo A. Pastén, Jean François Gaillard, Peter C. Stair*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


We describe the characterization of an unknown and difficult to identify but geochemically and environmentally significant MnOx structure produced by a freshwater bacterium, Leptothrix discophora SP-6, using combined transmission electron microscopy (TEM), extended X-ray absorption fine structure (EXAFS), and UV Raman spectroscopy. The large surface-to-volume ratio of the needle-shaped nanocrystalline MnO2 formed around the bacterial cells coupled to the porous, zeolite-like structure has the potential to catalyze reactions and oxidize and adsorb metals.

Original languageEnglish (US)
Pages (from-to)14284-14285
Number of pages2
JournalJournal of the American Chemical Society
Issue number47
StatePublished - Nov 26 2003

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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