Synthesis Of Γ-Fe2O3 Nanoparticles Capped With Oleic Acid And Their Magnetic Characterization

In this article, γ-Fe2O3 magnetic nanoparticles (maghemite) were prepared by a coprecipitationapproach. Oleic acid, a monounsaturated fatty acid were used as the capping and stabilizing agentduring the synthesis of the magnetic nanoparticles. The nanoparticles were characterized usingpowder x-ray diffraction (PXRD) measurement, field emission scanning electron microscopy (FESEM),fourier transform infrared spectra (FTIR), and vibrating sample magnetometer (VSM). Thecrystalline size of γ-Fe2O3 nanoparticles was achieved in the range between 16.2 and 26.8 nm. TheFE-SEM demonstrated the regular spheres of γ-Fe2O3 nanoparticles. The obtained maghemitenanoparticles were coated with oleic acid demonstrating by FTIR experiment. The resultednanoparticles showed superparamagnetic properties (~52 emu/g) even after coating with oleic acidwhich make them appropriate candidates for theranostic application in future studies.