Publications by authors named "N Bilesky-Jose"

Traditional methods for controlling plant pathogens rely on toxic chemicals, posing environmental and health risks. Developing sustainable, eco-friendly alternatives is crucial. Chitosan (CS)-based materials offer promising solutions for sustainable agriculture.

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Background: Biogenic metallic and oxide metal nanoparticles have potential as alternatives for several current problems in agriculture, such as the control of caterpillars which cause huge losses in the production of important crops. In the present study, capped and uncapped silver, iron oxide and titanium dioxide nanoparticles were synthesized from the filtrate of Beauveria bassiana and evaluated in regard to physico-chemical characteristics, capping composition, cytotoxicity, genotoxicity and biological activity on Helicoverpa armigera and Spodoptera frugiperda caterpillars.

Results: A difference in the physico-chemical parameters of the capped and uncapped nanoparticles was observed, with larger aggregation and lower stability of the uncapped.

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Article Synopsis
  • * Successful synthesis resulted in increased mycelial growth compared to traditional methods, with the nanoparticles demonstrating inhibitory effects against the phytopathogen Sclerotinia sclerotiorum and showing strong chitinolytic activity.
  • * The nanoparticles were non-toxic to human cells with protective effects, did not harm beneficial agricultural microorganisms, and did not negatively affect soybean plants, supporting their potential in sustainable agriculture.
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Article Synopsis
  • Silver (Ag), titanium dioxide (TiO), and iron (Fe) nanoparticles synthesized with the fungus Trichoderma harzianum were tested for their effectiveness against the agricultural pathogen Sclerotinia sclerotiorum and their potential toxic effects on the freshwater bivalve Anodontites trapesialis.* -
  • The study involved exposing bivalves to different nanoparticles for 24 hours, assessing bioaccumulation of metals and various biochemical markers to evaluate toxicity.* -
  • Results showed that A. trapesialis accumulated Ag from AgNP and experienced changes in ion concentrations, indicating susceptibility to AgNP, while exposure to TiONP and FeNP did not show significant harmful effects, suggesting these may
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After the latest dengue and Zika outbreaks, the fight against mosquito vectors has become an emerging area of research. One tool for this combat is repellents; however, these products are composed of different toxic agents. Botanical compounds with repellent potential are an alternative; however these compounds are highly volatile.

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