Organophosphate pesticides: Another silent liver hazard?

Álvarez‐Álvarez, Ismael; Bellido, Raúl J. Andrade

doi:10.1111/liv.15492

Cited by 10 publications

(1 citation statement)

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“…When OPs are applied to crops, they will inevitably accumulate in the environment and in organisms. Studies show that these residues can accumulate through the food chain and inhibit the activity of cholinesterase in the body, thus causing symptoms in the central nervous system and posing a threat to human health [8][9][10]. Up until now, OPs have been reported as the main pollutants in water and plants [11,12].…”

Section: Introductionmentioning

confidence: 99%

A Colorimetric Sensor Enabled with Heterogeneous Nanozymes with Phosphatase-like Activity for the Residue Analysis of Methyl Parathion

Zhao

Wang

et al. 2023

Foods

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In this study, a colorimetric sensor was developed for the detection of organophosphorus pesticides (OPs) using a heterogeneous nanozyme with phosphatase-like activity. Herein, this heterogeneous nanozyme (Au-pCeO2) was obtained by the modification of gold nanoparticles on porous cerium oxide nanorods, resulting in synergistic hydrolysis performance for OPs. Taking methyl parathion (MP) as the target pesticide, the catalytic performance and mechanism of Au-pCeO2 were investigated. Based on the phosphatase-like Au-pCeO2, a dual-mode colorimetric sensor for MP was put forward by the analysis of the hydrolysis product via a UV-visible spectrophotometer and a smartphone. Under optimum conditions, this dual-mode strategy can be used for the on-site analysis of MP with concentrations of 5 to 200 μM. Additionally, it can be applied for MP detection in pear and lettuce samples with recoveries ranging from 85.27% to 115.87% and relative standard deviations (RSDs) not exceeding 6.20%, which can provide a simple and convenient method for OP detection in agricultural products.

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