Abstract
In recent years, superparamagnetic iron oxide nanoparticles have attracted a great attention due to their various biomedical applications, such as magnetic resonance imaging, targeted drug delivery, and hyperthermia. In this article, γ-Fe2O3 magnetic nanoparticles (Maghemite) were prepared in oleic acid media by co-precipitation method. The oleic acid, a monounsaturated fatty acid was used as the capping and stabilizing agent during the synthesis of the magnetic nanoparticles. Characterization of obtained nanoparticles were performed using powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectra (FTIR), and vibrating sample magnetometer (VSM). The crystallite size of γ-Fe2O3 nanoparticles was achieved in the range between 16.2 and 26.8 nm. The FESEM demonstrated the regular spheres of γ-Fe2O3 nanoparticles. The obtained nanoparticles were coated with oleic acid indicating by FTIR analysis. The resulted oleic acid-coated nanoparticles were shown superparamagnetic properties (~52 emu/g). This suggested method is simple and rapid to fabricate superparamagnetic nanoparticles which make them appropriate candidates for theranostic application in future studies.
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The authors thank the financial support of Mashhad University of Medical Sciences (Grant No. 910808) based on the PhD thesis (No. A-517) of Mrs. Aida Gholoobi.
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Gholoobi, A., Abnous, K., Ramezani, M. et al. Synthesis of γ-Fe2O3 Nanoparticles Capped with Oleic Acid and their Magnetic Characterization. Iran J Sci Technol Trans Sci 42, 1889–1893 (2018). https://doi.org/10.1007/s40995-017-0147-7
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DOI: https://doi.org/10.1007/s40995-017-0147-7