Synthesis and efficacy of chitosan copper nanoparticles in mitigating Fusarium oxysporum infection in soybean

Abstract

In the present study, chitosan-copper nanoparticles (Cht-Cu-NPs) were successfully synthesized using aqueous leaf extract of Moringa oleifera. The synthesized Cht-Cu-NPs were characterized by UV-visible spectroscopy (UV-Vis), particles size by Dynamic light scattering (DLS) and Zeta potential. The formation of nanoparticle was observed by the peak at 520 nm using UV-Vis spectroscopy. The average particle size of the nanoparticle as determined by DLS was about 176 nm, while the zeta potential was +13 mV. The antifungal activity of the synthesised Cht-Cu-NPs was analysed against the Fusarsium oxysporum in soybean crop. Cht-Cu-NPs exhibited significant antifungal properties and stability, making them promising for agricultural applications, particularly in managing fungal pathogens. This eco-friendly method cuts down on harmful chemicals, saves money, and boosts biological action. By using copper's germ-killing power, chitosan's protective traits this approach offers a long-lasting option to replace chemical fungicides for dealing with fungal diseases in crops.