铜
动态光散射
扫描电子显微镜
透射电子显微镜
纳米颗粒
尖孢镰刀菌
核化学
材料科学
化学工程
相(物质)
水溶液
化学
纳米技术
有机化学
冶金
复合材料
植物
生物
工程类
作者
L.A. Hermida-Montero,Nicolaza Pariona,A.I. Mtz-Enríquez,Gloria Carrión,F. Paraguay‐Delgado,Greta Rosas-Saito
标识
DOI:10.1016/j.jhazmat.2019.120850
摘要
Different copper based-materials have been used for controlling some fungal and bacterial pathogens. However, the antifungal activity of the copper-based materials depends on different parameters, such as the crystal phase, synthesis route, and size of the particles. Herein a facile route synthesis method of Cu/CuxO-NPs was achieved through the aqueous phase. The influence of NaBH4 concentration on the phase composition was studied. The synthesized Cu/CuxO-NPs were characterized by X-Ray diffraction (XRD), Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and dynamic light scattering. Five Cu/CuxO-NPs with different phase composition and nanoparticle size were obtained. The antifungal activity of the synthesized Cu/CuxO-NPs was studied in vitro against Fusarium oxysporum. The results indicate that a high percent of inhibition of radial growth (IGR) was obtained with NPs, which have a higher proportion of Cu2O phase and relatively smaller size particles. Furthermore, hypha morphology, membrane damage and production of reactive oxygen species (ROS) was evaluated with SEM and confocal microscopy.
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