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Morphology and Magnetic Properties of Fe3O4 and [email protected] Nanoparticles Synthesized by Pulsed Plasma in Liquid

Authors: Zhazgul Kelgenbaeva, Emil Omurzak, Saadat Sulaimankulova, Tsutomu Mashimo


Spherical shaped magnetite (Fe3O4) and [email protected] nanoparticles were successfully synthesized from Fe electrodes immersed in water with CTAB surfactant and HAuCl4 solution using simple method-pulsed plasma in liquid, without the use of dopants or special conditions for stabilization. Vibrating sample magnetometer indicated ferromagnetic behavior of particles at room temperature with coercivity and saturation magnetization of (Hc=105 Oe, Ms=6.83 emu/g) for Fe3O4 and (Hc=175, Ms=3.56emu/g) for [email protected] nanoparticles. Structure and morphology of nanoparticles were characterized by X-ray Diffraction analysis and HR-TEM measurements. The cytotoxicity of nanoparticles was indicated using a XTT assay to be very low (cell viability: 98-89% with Fe3O4 and 99-91% for [email protected] NPs).

Keywords: Nanoparticles, Cytotoxicity, magnetite, Gold coated magnetite, Pulsed Plasma in Liquid

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