Structural and magnetic study and cytotoxicity evaluation of tetra-metallic nanoparticles of Co0.5Ni0.5CrxFe2-xO4 prepared by co-precipitation
| Autor: | Abbas Rahdar, A. M. Davarpanah, Steve Barrett, T. Mohamadian Hakami |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
biology Scanning electron microscope Coprecipitation Chemistry Organic Chemistry Nanoparticle 02 engineering and technology Coercivity 021001 nanoscience & nanotechnology biology.organism_classification 01 natural sciences Analytical Chemistry Inorganic Chemistry 0103 physical sciences Tetra Magnetic nanoparticles Particle size Crystallite 0210 nano-technology Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Molecular Structure. 1165:344-348 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2018.04.016 |
| Popis: | In this work, nanoparticles of Co0.5Ni0.5CrxFe2-xO4 (x = 0.0, 0.25, 0.5, 0.75, 1.0) were successfully synthesized via the co-precipitation method. Their structural and magnetic properties were studied using X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Vibrating Sample Magnetometery (VSM) techniques. XRD technique showed that the average crystallite sizes of the samples were in the range ∼18–27 nm. SEM showed uniform particle size of nanoparticles. Saturation Magnetization (Ms) decreased from 60.94 to 49.37 emu/gr as a function of Cr content for x = 0.0, 0.25, 0.5 and then increased from 52.88 to 60.80 emu/g for x = 0.75, 1.0. The values of the coercivity (HC) decreased from 542.63 to 113.99 Oe with x = 0.0, 0.25, 0.5 and then increased from 190.42 to 232.55 Oe for x = 0.75, 1.0. Low-cytotoxicity effects of Co0.5Ni0.5CrxFe2-xO4 (x = 0.25) nanoparticles at high concentrations on colon (HT-29) cancer cell lines were confirmed by the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay. |
| Databáze: | OpenAIRE |
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