Detection of glyphosate with a copper(<scp>ii</scp>)-pyrocatechol violet based GlyPKit

Yadav, Prerna; Zelder, Felix

doi:10.1039/d1ay01168e

Cited by 13 publications

(13 citation statements)

References 40 publications

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“…6) (log β = 10.08). 147 In other studies, the copper-chelating activity of MCPs was determined using murexide as color indicator (Fig. 6); 7,131 however, a weak stability complex ( λ max = 485 nm, log β = 4.36) 148 is formed between murexide and a small amounts of copper( ii ) present in the solution.…”

Section: Screening Methodologies For Mcpsmentioning

confidence: 99%

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Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications

Echavarría,

El Hajj,

Irankunda

et al. 2024

Food Funct.

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Section: Screening Methodologies For Mcpsmentioning

confidence: 99%

“…6). 147 Upon complexation of copper( ii ) by the investigated metal-chelating peptide, the concentration of [M(MCP)] complex present in the assay increases, which leads a decrease in absorbance of [Cu( ii )(PV) 3 ] complex (Fig. 6) (log β = 10.08).…”

Section: Screening Methodologies For Mcpsmentioning

confidence: 99%

Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications

Echavarría,

El Hajj,

Irankunda

et al. 2024

Food Funct.

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“…Hybrid nanomaterials used in these approaches include enzymes (AChE, ESPS), deoxyribonucleic acid (DNA)- or antibody-based aptamers, immune-magnetic conjugates, MIPs, and inorganic materials. Moreover, we herein discuss recent reports concerning the GLP determination by AI-excelled smartphone-integrated sensors, − and an automated vegetable analyzer for targeted GLP delivery …”

Section: Sensors and Separation Systems For Glp Determinationmentioning

confidence: 99%

“…A similar study developed a smartphone-dedicated kit test for selective GLP determination based on the Cu(II)-pyrocatechol violet complex. The kit sensed 20 μM GLP in tap water by the “naked eye” test, quantifying GLP with the LOD of 2.66 μM . Moreover, a novel enzyme-free visual ratiometric fluorescence paper sensor for GLP was devised by assembling blue CDs and AuNCs and incorporating them into a portable smartphone platform.…”

Section: Sensors and Separation Systems For Glp Determinationmentioning

confidence: 99%

Glyphosate Separating and Sensing for Precision Agriculture and Environmental Protection in the Era of Smart Materials

Mazuryk

Klepacka

Kutner

et al. 2023

Environ. Sci. Technol.

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The present article critically and comprehensively reviews the most recent reports on smart sensors for determining glyphosate (GLP), an active agent of GLP-based herbicides (GBHs) traditionally used in agriculture over the past decades. Commercialized in 1974, GBHs have now reached 350 million hectares of crops in over 140 countries with an annual turnover of 11 billion USD worldwide. However, rolling exploitation of GLP and GBHs in the last decades has led to environmental pollution, animal intoxication, bacterial resistance, and sustained occupational exposure of the herbicide of farm and companies' workers. Intoxication with these herbicides dysregulates the microbiomegut-brain axis, cholinergic neurotransmission, and endocrine system, causing paralytic ileus, hyperkalemia, oliguria, pulmonary edema, and cardiogenic shock. Precision agriculture, i.e., an (information technology)-enhanced approach to crop management, including a site-specific determination of agrochemicals, derives from the benefits of smart materials (SMs), data science, and nanosensors. Those typically feature fluorescent molecularly imprinted polymers or immunochemical aptamer artificial receptors integrated with electrochemical transducers. Fabricated as portable or wearable lab-on-chips, smartphones, and soft robotics and connected with SM-based devices that provide machine learning algorithms and online databases, they integrate, process, analyze, and interpret massive amounts of spatiotemporal data in a user-friendly and decision-making manner. Exploited for the ultrasensitive determination of toxins, including GLP, they will become practical tools in farmlands and point-of-care testing. Expectedly, smart sensors can be used for personalized diagnostics, real-time water, food, soil, and air quality monitoring, site-specific herbicide management, and crop control.

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“…Furthermore, a universal platform with a twin-sensing structure method was developed to detect GLY and atrazine in aqueous environments (Dhamu et al 2021). Yadav and Zelder, (2021) developed an optical detection system with an immobilized Cu(II)-pyrocatechol violet complex for the detection of GLY. Efforts are ongoing to develop alternative methods for detecting GLY in different matrices, especially in drinking water (Scandurra et al 2022).…”

Section: Analysis Of Glyphosate In Soil and Watermentioning

confidence: 99%

Archives of Environmental Protection

Kocadal,

Alkas,

Battal

et al. 2022

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Glyphosate is an inhibitor of the shikimate pathway in plants and the most widely used broad-spectrum herbicide. Due to the abundance of its use, there exists a necessity to measure the levels both in humans and in the environment to control the nefarious outcomes of its use. The appropriateness, selectivity, and the specifi city of the employed analytical methods are crucial for the reliability of the resultant deductions when conducting biomonitoring studies on possible exposure to chemicals, whether the samples are biological or environmental in nature. The aim of this study is to evaluate the analytical techniques used to monitor glyphosate levels in human and environmental samples. A detailed web-based literature search was conducted to gather data on the analytical techniques used for glyphosate determination. The most preferred authentic samples are blood, urine, and milk. Environmental samples include plants, soil, and water. Among widely used analytical techniques used to detect glyphosate are High Performance Liquid Chromatography, Liquid Chromatography with tandem mass spectrometry, Gas Chromatography -Tandem Mass Spectrometry, and enzyme-linked immunosorbent assay. Depending on the sample and study, the most suitable analytical method has been selected. A critical evaluation and publication of pre-existing literature on analytical methods in glyphosate-based herbicide detection will thus aid all relevant researchers in the determination of an appropriate, selective, and specifi c methodology. Fig. 1. Chemical structure of Glyphosate

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Detection of glyphosate with a copper(ii)-pyrocatechol violet based GlyPKit

Abstract: This paper describes the development of a test kit for the selective detection of glyphosate (GlyP). A copper(II)-pyrocatechol violet complex was selected by a screening approach from a pool of...

Cited by 13 publications

References 40 publications

Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications

Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications

Glyphosate Separating and Sensing for Precision Agriculture and Environmental Protection in the Era of Smart Materials

Archives of Environmental Protection

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