Magnetite in Sokli carbonatite massif and in Tulppio olivinite [PDF]
Bulletin of the Geological Society of Finland, 1981 Occurrence, ilmenite exsolutions and composition of magnetite in the carbonatite massif of Sokli and in the olivinite of Tulppio have been studied. In the carbonatite massif, magnetite of magmatic carbonatites is hypidio-idiomorphic, contains only very ...
K. Heinänen, H. Vartiainen
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High-temperature magnetic stability of small magnetite particles [PDF]
, 2003 The stability of magnetic domain structures of small grains of magnetite were examined between room temperature and the Curie temperature using a high-resolution three-dimensional micromagnetic algorithm.
Williams, W. +5 more
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Magnetite and magnetotaxis in microorganisms
Bioelectromagnetics, 1988 AbstractMagnetotactic bacteria from freshwater and marine sediments orient and navigate along geomagnetic field lines. Their magnetotactic response is based on intracellular, single magnetic domains of ferrimagnetic magnetite, which impart a permanent magnetic dipole moment to the cell.
Frankel, Richard B., Blakemore, R. P.
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Configurational anisotropy in single-domain and pseudosingle-domain grains of magnetite [PDF]
, 2006 In classical domain theory, single-domain (SD) grains change their magnetization by coherent rotation, where the energy barrier to domain reversal is provided by the magnetocrystalline anisotropy or by shape anisotropy for elongated grains.
Paterson, GA +8 more
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Necessity of electrically conductive pili for methanogenesis with magnetite stimulation [PDF]
PeerJ, 2018 Background Magnetite-mediated direct interspecies electron transfer (DIET) between Geobacter and Methanosarcina species is increasingly being invoked to explain magnetite stimulation of methane production in anaerobic soils and sediments.
Oumei Wang +4 more
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Critical single-domain/multidomain grain sizes in noninteracting and interacting elongated magnetite particles: Implications for magnetosomes [PDF]
, 2006 The critical size for stable single-domain (SD) behavior has been calculated as a function of grain elongation for magnetite grains using a numerical micromagnetic algorithm.
Muxworthy, Adrian R. +1 more
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Controlled biomineralization of magnetite (Fe3O4) by Magnetospirillum gryphiswaldense [PDF]
, 2008 Results from a study of the chemical composition and micro-structural characteristics of bacterial magnetosomes extracted from the magnetotactic bacterial strain Magnetospirillum gryphiswaldense are presented here.
Tobler, D.J. +9 more
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Effect of Surface Functionalization on the Adsorption of Arsenic Using Magnetite Nanocrystals
Adsorption Science & Technology, 2013 Bare-magnetite nanocrystals with an average size of 10 nm, synthesized using the co-precipitation method, were functionalized with sodium oleate (SO) in aqueous media.
T. Luna Pineda +2 more
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Functional analysis of the magnetosome island in Magnetospirillum gryphiswaldense: the mamAB operon is sufficient for magnetite biomineralization [PDF]
, 2011 Bacterial magnetosomes are membrane-enveloped, nanometer-sized crystals of magnetite, which serve for magnetotactic navigation. All genes implicated in the synthesis of these organelles are located in a conserved genomic magnetosome island (MAI).
Voigt Birgit +35 more
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Interactions between magnetite and humic substances: redox reactions and dissolution processes
Geochemical Transactions, 2017 Humic substances (HS) are redox-active compounds that are ubiquitous in the environment and can serve as electron shuttles during microbial Fe(III) reduction thus reducing a variety of Fe(III) minerals.
Anneli Sundman +4 more
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