The antibacterial activities of magnesium oxide nanoparticles in combination with nisin and heat in milk

The antibacterial activities of magnesium oxide nanoparticles in combination with nisin and heat in milk

The antibacterial activities of magnesium oxide nanoparticles (MgO NP) alone or in combinationwith other antimicrobials (nisin and heat) against Escherichia coli and Staphylococcus aureus were investigated. The results show that MgO NP have strong bactericidal activity against the pathogens. Asynergistic effect of MgO in combination with nisin and heat was observed as well. Scanning electron microscopy was used to characterize the morphological changes of S. aureus before and after ...

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Structural and electronic properties of zinc oxide nanostructures via density functional theory

Structural and electronic properties of zinc oxide nanostructures via density functional theory

By using ab initio density functional theory we studied the structural and electronic properties of zinc oxide, monolayer, double layer graphenlike and nanoribbons with armchair and zigzag edges. In case the double layer, the effects of inter-layer coupling on the electronic structures, were observed. These results showed that the energy gap in the monolayer was closed by inter-layer coupling. It was found that the ZnO double layer has a metallic behavior. Our results showed zigzag ZnO ...

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