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Persian Journal of Acarology، جلد ۱۳، شماره ۳، صفحات ۴۷۹-۴۹۸
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی <p><strong>Morphological, optical and thermal properties of </strong>α and γ-<strong>aluminum nanoparticles: Assessment of their biological activities against storage mites and mycotoxin producing fungi</strong></p>
چکیده انگلیسی مقاله Recently, using eco-friendly controlling methods against pests has been getting great attention. Therefore, this study aimed to assess synthesis of two different phases of nano aluminum oxide, alpha and Gamma, (α- and γ-Al2O3 NPs) from wastes. Additionally, evaluate them to control stored product mites, Mycetoglyphus fungivorus, and Caloglyphus mycophagus, and the fungi Aspergillus flavus, Alternaria sp., and Fusarium oxysporum. Two phases of Al2O3 NPs were synthesized in acidic and basic media and characterized using the field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDX), ultraviolet-visible (UV-Vis) and thermo gravimetric analysis (TGA). Mortality percentages of mites were evaluated at concentrations of 10, 30 and 60 ppm after 1, 2, 3 and 4 days. The growth of fungi was assessed to determine the fungicidal concentrations in PDB cultures by Mycelium Dry Weights Method. The study confirmed the formation and thermal stability of α- and γ-Al2O3 NPs using FESEM, UV-Vis and TGA. The average particle size of α-Al2O3 is 4–10 nm and for γ- Al2O3 is 14–30 nm. Both phases were toxic to tested stages of mites. Increasing concentration and exposure time, results in increased mite mortality rates. γ-Al2O3 NPs were more efficient than α-NPs post initial exposure, then all through time both have the same effect. The female's fecundity was significantly influenced. Tested eggs did not hatch at all. The toxic activity remained strong after 1, 2, and 3 months of exposure. The SEM images revealed a strong adhesive of α- and γ-NPs which were visibly bonded to various areas of dead mite females. γ-Al2O3 showed antifungal activity more than the α-NPs. Concentrations of fungicides depended on the fungal strain sensitivity. It has been concluded that α- and γ-Al2O3 NPs are efficient environmentally friendly agents against the proliferation of storage mites and mycotoxin producing fungi.
کلیدواژه‌های انگلیسی مقاله Aluminum cans,Eco-friendly products,Acarid mites,Fungi,Green synthesis
نویسندگان مقاله | Marwa Barghout
Department of Pests and Plant Protection, National Research Centre, 12622, Cairo, Egypt


| Hoda Kabary
Agricultural Microbiology Department, National Research Centre, 12622, Cairo, Egypt


| Asmaa Ismail
Spectroscopy Department, National Research Centre, 12622, Giza, Egypt


| Ahmed Samy
Department of Animal Production, National Research Centre, 12622, Giza, Egypt
نشانی اینترنتی https://www.biotaxa.org/pja/article/view/85105
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi) 10.22073/pja.v13i3.85105
زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Article
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