Controlled biomineralization of magnetite (Fe3O4) by Magnetospirillum gryphiswaldense
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Controlled biomineralization of magnetite (Fe3O4) by Magnetospirillum gryphiswaldense. / Moisescu, Cristina; Bonneville, S.; Tobler, Dominique Jeanette; Ardelean, I.; Benning, L.G.
I: Mineralogical Magazine, Bind 72, Nr. 1, 2008, s. 333-336.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Controlled biomineralization of magnetite (Fe3O4) by Magnetospirillum gryphiswaldense
AU - Moisescu, Cristina
AU - Bonneville, S.
AU - Tobler, Dominique Jeanette
AU - Ardelean, I.
AU - Benning, L.G.
PY - 2008
Y1 - 2008
N2 - 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. Using high-resolution transmission electron microscopy combined with selected-area electron diffraction and energy dispersive X-ray microanalysis, biogenic magnetite particles isolated from mature cultures were analysed for variations in crystallinity and particle size, as well as chain character and length. The analysed crystals showed a narrow size range (∼44-67 nm) with an average diameter of 46±6.8 nm, cuboctahedral morphologies and typical Gamma type crystal size distributions. The magnetite particles exhibited a high chemical purity (exclusively Fe3O4) and the majority fall within the single-magnetic-domain range.
AB - 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. Using high-resolution transmission electron microscopy combined with selected-area electron diffraction and energy dispersive X-ray microanalysis, biogenic magnetite particles isolated from mature cultures were analysed for variations in crystallinity and particle size, as well as chain character and length. The analysed crystals showed a narrow size range (∼44-67 nm) with an average diameter of 46±6.8 nm, cuboctahedral morphologies and typical Gamma type crystal size distributions. The magnetite particles exhibited a high chemical purity (exclusively Fe3O4) and the majority fall within the single-magnetic-domain range.
U2 - 10.1180/minmag.2008.072.1.333
DO - 10.1180/minmag.2008.072.1.333
M3 - Journal article
AN - SCOPUS:57249108601
VL - 72
SP - 333
EP - 336
JO - Mineralogical Magazine
JF - Mineralogical Magazine
SN - 0026-461X
IS - 1
ER -
ID: 122493856