Organophosphorus pesticides residues in food and their colorimetric detection

Chawla, Prince; Kaushik, Ravinder; Swaraj, V.J. Shiva; Kumar, Naveen

doi:10.1016/j.enmm.2018.07.013

Cited by 76 publications

(50 citation statements)

References 186 publications

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“…The use of organophosphorus compounds in agriculture introduces risks for human beings due to their high toxicity. These substances are composed by functional oxo‐phosphate (PO) or thio‐phosphate (PS) group that may cause lethal damage by acute poisoning . Typical compounds based on oxo‐ and thio‐phosphate groups are summarized in Figure .…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…These substances are composed by functional oxo-phosphate (P O) or thio-phosphate (P S) group that may cause lethal damage by acute poisoning. 1,47 Typical compounds based on oxo-and thio-phosphate groups are summarized in Figure 2.…”

Section: Organophosphorous Pesticidesmentioning

confidence: 99%

“…Despite the increasing demand for organic food cultivation (minimal incorporation of chemical additives in food production), pesticides remain as substances largely applied in agriculture, being accumulated in soil and water and affecting the animal and human health. The organophosphorus pesticides were applied in the agriculture in substitution to organochlorine pesticides; however, it introduces similar human health risks …”

Section: Introductionmentioning

confidence: 99%

“…The organophosphorus pesticides were applied in the agriculture in substitution to organochlorine pesticides; however, it introduces similar human health risks. 1 The organophosphates compounds induce inhibitory attack on serine residue of neurotransmitter enzyme acetylcholinesterase (AChE) through phosphorylation reaction. As a result of high concentrations of AChE at nervous synapse, it is observed the sensory and behavioral disturbances, incoordination, depressed motor function, respiratory depression in central nervous system and brain dysfunction, followed by death.…”

Section: Introductionmentioning

confidence: 99%

“…As a result of high concentrations of AChE at nervous synapse, it is observed the sensory and behavioral disturbances, incoordination, depressed motor function, respiratory depression in central nervous system and brain dysfunction, followed by death. 1,2 The development of ultrasensitive methods for fast detection of the organophosphorus pesticides attracted arousing tremendous attention in literature. Different methodologies have been explored for this purpose, such as electrochemical detection, 3,4 gas chromatography 5 and high performance liquid chromatography.…”

Section: Introductionmentioning

confidence: 99%

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Silver‐based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Soares

2019

Biotechnology Progress

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The detection of traces of substances by surface‐sensitive techniques such as surface enhanced Raman spectroscopy (SERS) explores the interaction of adsorbed molecules on plasmonic surfaces to improve the limit of detection of analytes. This article is an overview about recent development in SERS substrates applied in the detection of organophosphorus pesticides on plasmonic surfaces (arrays of metal nanoparticles). The morphology, roughness, chemical functionalization degree, and aggregation level of plasmonic centers are some of the critical parameters to be controlled in the optimization of SERS signal from specific analytes.

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Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Organophosphorous Pesticidesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Silver‐based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Soares

2019

Biotechnology Progress

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Impact of Solute Properties and Water Matrix on Nanofiltration of Pesticides

et al. 2019

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The application of different nanofiltration membranes for the separation of pesticides, i.e., atrazine and dimethoate, from aqueous solutions is described. The nanoflitration membranes DK, NF270, NF200, and NF90 were tested for the pesticide retention performance in a stirred dead-end filtration system. NF90 demonstrated the best pesticide retention with over 95 % for atrazine and approximately 80 % for dimethoate. All membranes consistently showed better retention of atrazine than of dimethoate. Dissolving the pesticides in river or tap water amplified the overall pesticide retention performance, indicating that filtration in water treatment plants could render superior pesticide retention. However, a lower flux was obtained for the filtration of tap and river water.

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A novel cellulosic non‐enzymatic nanosensor based on carbon shell silver (Ag@C) nanoparticles for colorimetric detection of Chlorpyrifos in agricultural products

et al. 2022

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Background: The precise detection and quantification of organophosphorus pesticides are highly required to ensure food safety. The non-enzymatic nanosensor technology has appeared as an efficient method to replace conventional analytical techniques of pesticide detection. The utilization of carbon-based nanomaterials and metal nanoparticles has shown great potential to develop non-enzymatic nanosensors for the sensitive and selective sensing of food contaminants.Results: In this study, bifunctional carbon shell silver nanoparticles (Ag@C NPs) having oxidase-like properties and advanced optical activities were used as nanozymes for visual detection of highly toxic organophosphorus pesticide (OP), Chlorpyrifos. The asprepared nanomaterial was characterized for its structural and morphological features.The nanosensor was fabricated by immobilizing Ag@C NPs in the network of sodium alginate gel over a cellulosic paper disc. The detection was based on the inhibition of oxidase-like activity of Ag@C NPs by the adsorption of pesticide which blocks the accessibility of substrate to produce the blue-colored product. Under the optimized conditions, the fabricated sensor showed potential analytical response for Chlorpyrifos providing a dynamic linear range from 0-350 ng/mL with a limit of detection, of 0.097 ng/mL and limit of quantification, of 0.293 ng/mL. In addition, the devised sensor was able to recover Chlorpyrifos from spiked wheat, apple, and water samples with excellent recovery percentages. Further, the constructed nanosensor exhibited excellent selectivity and specificity to Chlorpyrifos. Conclusion:The fabricated surface provides a rapid, selective, low cost and portable detection method for the real-time detection of OP traces from food and environmental samples.

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Organophosphorus pesticides residues in food and their colorimetric detection

Cited by 76 publications

References 186 publications

Silver‐based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Silver‐based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Impact of Solute Properties and Water Matrix on Nanofiltration of Pesticides

A novel cellulosic non‐enzymatic nanosensor based on carbon shell silver (Ag@C) nanoparticles for colorimetric detection of Chlorpyrifos in agricultural products

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