Bioinorg Chem Appl. 2014;2014:384984. doi: 10.1155/2014/384984. Epub 2014 Jun 01.

A Comparison between Chemical Synthesis Magnetite Nanoparticles and Biosynthesis Magnetite.

Bioinorganic chemistry and applications

Seyed Abolghasem Kahani, Zahra Yagini

PMID: 24982609 PMCID: PMC4058688 DOI: 10.1155/2014/384984

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).

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Publication Types

• Journal Article