Magnetoreception and Magnetosomes in Bacteria pp 197-225

Part of the Microbiology Monographs book series (MICROMONO, volume 3)

Characterization of Bacterial Magnetic Nanostructures Using High-Resolution Transmission Electron Microscopy and Off-Axis Electron Holography

  • Mihály Pósfai
  • Takeshi Kasama
  • Rafal E. Dunin-Borkowski
Chapter

Abstract

Magnetotactic bacteria can be regarded as model systems for studying the structural, chemical, and magnetic properties of arrangements of ferrimagnetic iron oxide and sulfide nanocrystals. The aim of the present chapter is to show how the size, shape, crystal structure, crystallographic orientation, and spatial arrangement of bacterial magnetite (Fe3O4) and greigite (Fe3S4) crystals affect their magnetic properties. We present recent results obtained using transmission electron microscopy (TEM) techniques, including high-resolution TEM imaging and off-axis electron holography.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Mihály Pósfai
    • 1
  • Takeshi Kasama
    • 2
    • 3
  • Rafal E. Dunin-Borkowski
    • 2
    • 3
  1. 1.Department of Earth and Environmental SciencesPannon UniversityVeszprémHungary
  2. 2.Frontier Research SystemThe Institute of Physical and Chemical ResearchSaitamaJapan
  3. 3.Department of Materials Science and MetallurgyUniversity of CambridgeCambridgeUK

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