Characterization of microtubule material consisting of iron oxide nanoparticles produced by bacteria

R. Sakuma, H. Hashimoto, Y. Kusano, Y. Ikeda, Makoto Nakanishi, Tatsuo Fujii, M. Takano, J. Takada

Research output: Contribution to journalArticle

Abstract

Iron oxide microtubules produced by a species of iron-oxidizing bacteria, Leptothrix ochracea, have been expected to be useed as unique multifunctional materials such as catalysts scaffolds, pigments, and magnetic materials. However, their structural characteristics and formation mechanism are still ambiguous. The detailed features of the microtubules were characterized through electron microscopies, X-ray diffractometory, and energy dispersive X-ray spectroscopy. We found that the microtubules have hierarchical microstructures with aggregates of amorphous iron oxide nanoparticles. Statistical analysis of distributions of the tubule diameters and the wall thicknesses suggested that the tubule layer could grow from outside to inside.

Original languageEnglish
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume61
Issue numberSUPLL.1
DOIs
Publication statusPublished - 2014

Fingerprint

Iron oxides
Bacteria
Nanoparticles
Magnetic materials
Pigments
Scaffolds
Electron microscopy
Statistical methods
Iron
X rays
Microstructure
Catalysts
ferric oxide
X-Ray Emission Spectrometry

Keywords

  • Amorphous
  • Iron oxide nanoparticles
  • Iron-oxidizing bacteria
  • Microtubules

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Characterization of microtubule material consisting of iron oxide nanoparticles produced by bacteria. / Sakuma, R.; Hashimoto, H.; Kusano, Y.; Ikeda, Y.; Nakanishi, Makoto; Fujii, Tatsuo; Takano, M.; Takada, J.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 61, No. SUPLL.1, 2014.

Research output: Contribution to journalArticle

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AU - Hashimoto, H.

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AU - Nakanishi, Makoto

AU - Fujii, Tatsuo

AU - Takano, M.

AU - Takada, J.

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