A new poly carboxylic catex polymer-gold nanoparticles modified electrode for determination of paraquat by voltammetry method

Pourakbari, Zahra; Sheykhan, Mehdi; Aliakbar, Alireza

doi:10.1016/j.jece.2020.104284

Cited by 12 publications

(4 citation statements)

References 42 publications

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“…Paraquat has adverse effects on living organisms and the environment, so controlling its level in the soil is crucial. AuNPs have been used in a number of electrochemical detection methods for paraquat due to their effective electrocatalytic performance, and a nanomole-level detection line has been established [ 100 , 101 , 102 ]. For example, Aliakbar et al [ 101 ] prepared a catex polymeric-AuNPs composite modified electrode for determining paraquat based on the redox property of paraquat.…”

Section: Application Of Nanoparticle-based Sensors For Different Pest...mentioning

confidence: 99%

“…AuNPs have been used in a number of electrochemical detection methods for paraquat due to their effective electrocatalytic performance, and a nanomole-level detection line has been established [ 100 , 101 , 102 ]. For example, Aliakbar et al [ 101 ] prepared a catex polymeric-AuNPs composite modified electrode for determining paraquat based on the redox property of paraquat. Adding AuNPs to the composite enhanced the electrode’s sensitivity to paraquat measurement.…”

Section: Application Of Nanoparticle-based Sensors For Different Pest...mentioning

confidence: 99%

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Recent Advances in Nanoparticle-Based Optical Sensors for Detection of Pesticide Residues in Soil

et al. 2023

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The excessive and unreasonable use of pesticides has adversely affected the environment and human health. The soil, one of the most critical natural resources supporting human survival and development, accumulates large amounts of pesticide residues. Compared to traditional spectrophotometry analytical methods, nanoparticle-based sensors stand out for their simplicity of operation as well as their high sensitivity and low detection limits. In this review, we focus primarily on the functions that various nanoparticles have and how they can be used to detect various pesticide residues in soil. A detailed discussion was conducted on the properties of nanoparticles, including their color changeability, Raman enhancement, fluorescence enhancement and quenching, and catalysis. We have also systematically reviewed the methodology for detecting insecticides, herbicides, and fungicides in soil by using nanoparticles.

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Section: Application Of Nanoparticle-based Sensors For Different Pest...mentioning

confidence: 99%

Section: Application Of Nanoparticle-based Sensors For Different Pest...mentioning

confidence: 99%

Recent Advances in Nanoparticle-Based Optical Sensors for Detection of Pesticide Residues in Soil

et al. 2023

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“…There were reports of the detection of contaminated paraquat in several vegetables collected from local markets and supermarkets, such as cabbage, 10 tomato, 11 round gourd, 12 and adzuki beans 13 . Over the past decade, the paraquat detection techniques have been reported, including spectrophotometry, 14 capillary electrophoresis, 15 gas chromatography, 16 liquid chromatography, 17 thin‐layer chromatography, 18 surface‐enhanced Raman spectroscopy (SERS), 19 and electrochemistry 20 . Although these techniques are effective for paraquat detection, their limitations are the requirement of an advanced instrument, high‐cost expense, time‐consuming process, in‐laboratory detection, and requirement of a trained technician.…”

Section: Introductionmentioning

confidence: 99%

“…13 Over the past decade, the paraquat detection techniques have been reported, including spectrophotometry, 14 capillary electrophoresis, 15 gas chromatography, 16 liquid chromatography, 17 thin-layer chromatography, 18 surface-enhanced Raman spectroscopy (SERS), 19 and electrochemistry. 20 Although these techniques are effective for paraquat detection, their limitations are the requirement of an advanced instrument, high-cost expense, time-consuming process, in-laboratory detection, and requirement of a trained technician. Therefore, a simple, rapid, and on-site detection of paraquat has been a research challenge.…”

Section: Introductionmentioning

confidence: 99%

Simple colorimetric screening of paraquat residue in vegetables evaluated by localized surface plasmon resonance of gold nanoparticles

Kongpreecha

Siri

2021

Biotech and App Biochem

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The contamination of paraquat in vegetables is widely connected with human health risks, leading to the research interest in developing a paraquat sensing system. This work reports a simple detection method of paraquat based on the electrostatic interaction of paraquat and the negatively charged gold nanoparticles (AuNPs), resulting in the changes of colors from red to blue and the shifting of localized surface plasmon resonance (LSPR) peaks of AuNPs. The limit of detection concentration (C LOD ) of this system was 100 μM paraquat. Moreover, among eight cationic salts tested, NaCl was selective to enhance the detection sensitivity of the system, resulting in the reduction of C LOD to 0.10 μM. This system selectively detected paraquat, but not other tested herbicides (ametryn, atrazine, glyphosate, and 2,4-D-dimethyl ammonium). The paraquat-spiking experiment in kale demonstrated the significant recovery rate of paraquat at 96.0-103.0%, and the relative standard deviations were less than 4%. The developed system was efficient for screening contaminated paraquat in vegetables under unwashed and washed conditions. Three out of five unwashed vegetables had a significant level of paraquat as determined by LSPR values. These results suggested the potential application of this system for a simple screening of contaminated paraquat in vegetables.• Simple paraquat-screening system was developed based on the negatively charged gold nanoparticles.• The limit of paraquat detection of this system was 0.10 μM.• This system was potentially used for a simple screening of contaminated paraquat in vegetables.

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Fabrication of a highly sensitive new ANT/MoS2/Fe3O4/GCE nanocomposite electrochemical sensor for herbicide Paraquat residual in environmental water resources

Yari

Savari

2023

J IRAN CHEM SOC

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A new poly carboxylic catex polymer-gold nanoparticles modified electrode for determination of paraquat by voltammetry method

Cited by 12 publications

References 42 publications

Recent Advances in Nanoparticle-Based Optical Sensors for Detection of Pesticide Residues in Soil

Recent Advances in Nanoparticle-Based Optical Sensors for Detection of Pesticide Residues in Soil

Simple colorimetric screening of paraquat residue in vegetables evaluated by localized surface plasmon resonance of gold nanoparticles

Fabrication of a highly sensitive new ANT/MoS2/Fe3O4/GCE nanocomposite electrochemical sensor for herbicide Paraquat residual in environmental water resources

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