Zno-Nanostructured Electrochemical Sensor for Efficient Detection of Glyphosate in Water

Published: Jan. 1, 2025

Glyphosate is a widely used broad-spectrum herbicide for controlling grassy weeds, but its potential hazards remain topic of significant debate. Despite concerns, glyphosate still commonly highlighting that methods rutine detection in environmental samples are imperatively required. Herein, we report on solid-state electrochemical sensor based ZnO nanoparticles (ZnO NPs) on-site glyphosate. Accordingly, NPs was drop-cast the surface disposable screen-printed carbon electrode. Eco-friendly only 7 nm crystallite sizes were obtained by green sol-gel synthesis using lemon (Citrus limon) waste aqueous extract as reducing and capping/stabilizing agent Zn nitrate precursor. Scanning electron microscopy confirmed successful electrode functionalization with synthesized nanoparticles. Under laboratory conditions acetate buffer (pH 5), demonstrated excellent selectivity sensitivity, limit 0.648 µM, wide linear range (0.5 µM to 7.5 mM), rapid time 30 minutes. When tested river water, achieved 0.96 differential pulse voltammetry. It also exceptionally tolerated interference from similar organophosphorus compounds ions found water. The performance attributed strong coordination interactions between atoms phosphonate/carboxylate groups enhanced hydrogen bond at acidic pH, determined chemical calculations. This offers cost-effective, efficient, environmentally friendly solution monitoring water systems.

Language: Английский

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Pesticides, organic food and breast cancer

Published: March 24, 2025

Pesticides are chemicals used in agriculture and residential areas to repel or control certain forms of plant animal life that considered be pests. Many these harmful may damage the DNA, alter gene expression, induce oxidative stress, act as Endocrine Disrupting Chemicals (EDCs). Some pesticides have also been classified potentially promoting cancer by international regulatory bodies. People working with exposed higher levels, whilst rest population is primarily through diet when private areas. Occupational biomonitoring studies shown exposure increase breast risk, especially for highly toxic no longer authorised but still persist environment. Very limited evidence suggests dietary risk; meanwhile, some suggest organic food reduce risk. Whilst more research needed on health benefits food, swapping conventional produce an effective way pesticide exposure. Where this not possible, fruit vegetables should washed tap water.

Language: Английский

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Detection of ninhydrin-glyphosate in groundwater via the colour chart-assisted digital camera method

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: unknown, P. 126253 - 126253

Published: April 1, 2025

Language: Английский

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