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Title: Synthesis and in vitro antifungal efficiency of alginate-stabilized Cu₂O-Cu nanoparticles against Neoscytalidium dimidiatum causing brown spot disease on dragon fruit plants (Hylocereus undatus)
Authors: Bui, Duy Du
Doan, Thi Bích Ngoc
Nguyen, Duy Thang
Le, Nghiem Anh Tuan
Bui, Dinh Thach
Nguyen, Quoc Hien
Keywords: Cu₂O-Cu nanoparticles
Antifungal activity
Neoscytalidium dimidiatum
Issue Date: 2019
Series/Report no.: Vietnam Journal of Chemistry;No 57(03) .- Page.318-323
Abstract: Cu₂O-Cu nanoparticles (Cu₂O-Cu NPs) stabilized by alginate have been developed for using as a plant fungicide. The antifungal effect of Cu₂O-Cu NPs against Neoscytalidium dimidiatum fungus causing brown spot disease in dragon fruit plants was investigated. Transmission electron microscopy (TEM) was used to assess the morphology and size of Cu₂O-Cu NPs. The average diameter of spherical Cu₂O-Cu NPs was determined to be 5.4±0.4 nm. Furthermore, the Cu₂O-Cu NPS stabilized in alginate were also characterized by Fourier transform infrared (FT-IR) and X-ray diffraction (XRD) analysis. Especially, the prepared Cu₂O-Cu NPs/alginate showed high antifungal efficiency (~100 %) against Neoscytalidium dimidiatum with 30 ppm concentration copper. The obtained results showed that Cu₂O-Cu NPs stabilized in alginate have great potential in the development of nanomaterials for plant fungicide applications.
ISSN: 2525-2321
Appears in Collections:Vietnam Journal of Chemistry

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