Abstract
In this study, PEG-Fe3O4/ZnO magetic nanocomposties were synthesized by a ultrasound assisted co-precipitation method. The magnetic nanocomposites were characterized by XRD, FT-IR, FESEM and VSM techniques. The effect of Fe3O4:ZnO ratio on the crystallite size and the lattice parameter of the nanoparticles was also studied using XRD. Magetic nanoparticles of PEG-Fe3O4/ZnO nanocomposites exhibit the particles size in the range of 20-30 nm. The VSM measurements at room temperature showed that PEG-Fe3O4/ZnO nanocomposites had superparamagnetic properties. These results indicated that ultrasonication time and ration (Fe3O4/ZnO) greatly affect the characteristics of the nanoparticles. The antibacterial efficiency of PEG-Fe3O4/ZnO nanoparticles was tested against Sacharomyces cerevisiae, Bacillus subtilis and E. coli bacteria using disc diffusion method.
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