A Comparison between Chemical Synthesis Magnetite Nanoparticles and Biosynthesis Magnetite | Zendy

Seyed Abolghasem Kahani | Zendy; Zahra Yagini | Zendy

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A Comparison between Chemical Synthesis Magnetite Nanoparticles and Biosynthesis Magnetite

Author(s) -

Seyed Abolghasem Kahani,

Zahra Yagini

Publication year - 2014

Publication title -

bioinorganic chemistry and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.865

H-Index - 35

eISSN - 1565-3633

pISSN - 1687-479X

DOI - 10.1155/2014/384984

Subject(s) - magnetotactic bacteria , magnetite , magnetosome , crystallite , ferrous , chemical engineering , aqueous solution , particle size , chemistry , nanoparticle , scanning electron microscope , particle (ecology) , nanotechnology , materials science , crystallography , metallurgy , organic chemistry , composite material , oceanography , geology , engineering

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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