A Comparison between Chemical Synthesis Magnetite Nanoparticles and Biosynthesis Magnetite

The preparation of Fe(3)O(4) 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...

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Detalles Bibliográficos
Autores principales: Kahani, Seyed Abolghasem, Yagini, Zahra
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4058688/
https://www.ncbi.nlm.nih.gov/pubmed/24982609
http://dx.doi.org/10.1155/2014/384984
Descripción
Sumario:The preparation of Fe(3)O(4) 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 Fe(3)O(4) 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).

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