Literature DB >> 9836632

Magnetic microstructure of magnetotactic bacteria by electron holography

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Abstract

Off-axis electron holography in the transmission electron microscope was used to correlate the physical and magnetic microstructure of magnetite nanocrystals in magnetotactic bacteria. The magnetite crystals were all single magnetic domains, and the magnetization directions of small superparamagnetic crystals were constrained by magnetic interactions with larger crystals in the chains. Shape anisotropy was found to dominate magnetocrystalline anisotropy in elongated crystals. A coercive field between 300 and 450 oersted was determined for one chain.

Entities:  

Year:  1998        PMID： 9836632     DOI： 10.1126/science.282.5395.1868

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  53 in total

1.  Magnetite morphology and life on Mars.

Authors:  P R Buseck; R E Dunin-Borkowski; B Devouard; R B Frankel; M R McCartney; P A Midgley; M Pósfai; M Weyland
Journal:  Proc Natl Acad Sci U S A       Date:  2001-11-20       Impact factor: 11.205

2.  Direct imaging of nanoscale magnetic interactions in minerals.

Authors:  Richard J Harrison; Rafal E Dunin-Borkowski; Andrew Putnis
Journal:  Proc Natl Acad Sci U S A       Date:  2002-12-13       Impact factor: 11.205

3.  Direct upstream motility in Escherichia coli.

Authors:  Tolga Kaya; Hur Koser
Journal:  Biophys J       Date:  2012-04-03       Impact factor: 4.033

4.  Development of cellular magnetic dipoles in magnetotactic bacteria.

Authors:  Damien Faivre; Anna Fischer; Inés Garcia-Rubio; Giovanni Mastrogiacomo; Andreas U Gehring
Journal:  Biophys J       Date:  2010-08-09       Impact factor: 4.033

5.  Dynamics of Biomineralization and Biodemineralization.

Authors:  Lijun Wang; George H Nancollas
Journal:  Met Ions Life Sci       Date:  2010-06-01

6.  Quantifying the magnetic advantage in magnetotaxis.

Authors:  M J Smith; P E Sheehan; L L Perry; K O'Connor; L N Csonka; B M Applegate; L J Whitman
Journal:  Biophys J       Date:  2006-05-19       Impact factor: 4.033

7.  Electron tomography and holography in materials science.

Authors:  Paul A Midgley; Rafal E Dunin-Borkowski
Journal:  Nat Mater       Date:  2009-04       Impact factor: 43.841

Review 8.  Calcium orthophosphates: crystallization and dissolution.

Authors:  Lijun Wang; George H Nancollas
Journal:  Chem Rev       Date:  2008-09-25       Impact factor: 60.622

9.  Crystal growth of bullet-shaped magnetite in magnetotactic bacteria of the Nitrospirae phylum.

Authors:  Jinhua Li; Nicolas Menguy; Christophe Gatel; Victor Boureau; Etienne Snoeck; Gilles Patriarche; Eric Leroy; Yongxin Pan
Journal:  J R Soc Interface       Date:  2015-02-06       Impact factor: 4.118

10.  Anisotropy of bullet-shaped magnetite nanoparticles in the magnetotactic bacteria Desulfovibrio magneticus sp. Strain RS-1.

Authors:  Michalis Chariaou; Lilah Rahn-Lee; Jessica Kind; Inés García-Rubio; Arash Komeili; Andreas U Gehring
Journal:  Biophys J       Date:  2015-03-10       Impact factor: 4.033
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