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Chitosan Coated - Biogenic Silver Nanoparticles from Wheat Residues as Green Antifungal and Nanoprimig in Wheat Seeds by María Mondéjar-López; Alberto José López-Jimenez; Oussama Ahrazem; Lourdes Gómez-Gómez; Enrique Niza is a Materials Science article available to read on EtoBox.

What is Chitosan Coated - Biogenic Silver Nanoparticles from Wheat Residues as Green Antifungal and Nanoprimig in Wheat Seeds about?

In this study, chitosan-coated biogenic silver nanoparticles (AgNP-CH) were obtained through green chemistry by recycling wheat crop leaf residues. The nanoparticles were characterized by UV-VIS spectroscopy, and total reflectance-Fourier transform infrared spectroscopy confirmed the nanoparticle formation, and the incorporation of chitosan surrounding silver nanoparticles. The size and morphology of nanoparticles were evaluated by microscopy techniques, showing a size range of 2–10 nm, with spherical shape and narrow distribution. The antifungal assay indicated a higher antimicrobial activity showing values of minimum inhibitory concentrations of 41.7 μg/mL against Fusarium oxysporum, and 208.37 μg/mL for Aspergillus niger, A. versicolor and A. brasiliensis. Finally, non-phytotoxic effects were observed in germination assays at early plant stage of development, and an increase in chlorophyll levels were observed at the doses tested with AgNP-CH. Thus, the use of AgNP-CH could be a potential alternative for the prevention of fungal infections in cereals in the early stages of wheat crop development.

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Author

María Mondéjar-López; Alberto José López-Jimenez; Oussama Ahrazem; Lourdes Gómez-Gómez; Enrique Niza

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)