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| 1 | Antifungal activity of magnetically separable Fe_3O_4/ZnO/AgBr nanocomposites prepared by a facile microwave-assisted method显示文摘In the present work, magnetically separable Fe-_3O_4/ZnO/AgBr nanocomposites with different weight ratios of Fe_3O_4 to ZnO/AgBr were prepared by a facile microwave-assisted method. The resultant samples were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), energy dispersive analysis of X-rays(EDX), and vibrating sample magnetometery(VSM). Antifungal activity of the as-prepared samples was evaluated against Fusarium graminearum and Fusarium oxysporum as two phytopathogenic fungi. Among the nanocomposites, the sample with 1:8 weight ratio of Fe_3O_4 to ZnO/AgBr was selected as the best nanocomposite. This nanocomposite inactivates Fusarium graminearum and Fusarium oxysporum at 120 and 60 min, respectively. Moreover, it was observed that the microwave irradiation time has considerable influence on the antifungal activity and the sample prepared by irradiation for 10 min showed the best activity. Moreover, the nanocomposite without any thermal treatment displayed the superior activity. | Abolghasem Hoseinzadeh Aziz Habibi-Yangjeh Mahdi Davari | 2016 | Progress in Natural Science:Materials International2016，26，4： | 0 |
| 2 | Real Time,in situ Observation of the Photocatalytic Destruction of Saccharomyces cerevisiae Cells by Palladium-modified Nitrogen-doped Titanium Oxide Thin Film显示文摘Palladium-modified nitrogen-doped titanium oxide(TiON/PdO) thin film was synthesized by the ion-beamassisted deposition technique,which enabled a heavy nitrogen doping and the subsequent light absorption extension to ~700 nm for a better usage of the solar spectrum.Based on TiON/PdO thin film and a phase contrast microscope,a micro-reaction chamber was developed,which allowed the simultaneous optical excitation of the photocatalytic thin film and the phase contrast image observation of cells in it.The real time,in situ observation of the photocatalytic destruction of Saccharomyces cerevisiae(S.cerevisiae),an essential eukaryotic unicellular model of living cells,was conducted with this new observation technique,which demonstrated clearly that the photocatalytic destruction effect was much stronger than the photodamage effect caused by the visible light irradiation alone in the disinfection process. | Jingtao Zhang Qi Li Ronghui Li Jian Ku Shang | 2015 | Journal of Materials Science & Technology2015，31，1： | 0 |
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