| Authors | سید ابوالقاسم کاهانی,زهرا یقینی |
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| Journal | Bioinorganic Chemistry and Applications |
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| Page number | 1 |
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| Volume number | 2014 |
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| IF | 2.081 |
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| Paper Type | Full Paper |
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| Published At | 2014-06-29 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR ,SCOPUS |
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| Keywords | Magnetite, Biosynthesis, Nanoparticles, Magnetotactic bacteria |
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Abstract
The preparation of Fe3O4 from ferrous salt by air in alkaline aqueous solution at various temperatures was proposed. The
synthetic magnetites have different particle size distributions. We studied the properties of the magnetite prepared by chemical
methods compared with magnetotactic bacterial nanoparticles. The results show that crystallite size, morphology, and particle size
distribution of chemically prepared magnetite at 293 K are similar to biosynthesis of magnetite. The new preparation of Fe3O4
helps to explain the mechanism of formation of magnetosomes in magnetotactic bacteria. The products are characterized by X-
ray powder diffraction (XRD), infrared (IR) spectra, vibrating sample magnetometry (VSM), and scanning electron microscopy
(SEM).
