Fabrication of a highly sensitive and selective modified electrode for imidacloprid determination based on designed nanocomposite graphene quantum dots/ionic liquid/multiwall carbon nanotubes/polyaniline

Nasr‐Esfahani, Parisa; Ensafi, Ali A.; Rezaei, Behzad

doi:10.1016/j.snb.2019.126682

Cited by 53 publications

(9 citation statements)

References 33 publications

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“…Thus, the real-time monitoring of neonicotinoid pesticide residues is highly significant to food security and the sustainable development of the ecological environment. In recent years, various analytical methods such as capillary electrophoresis, high-performance liquid chromatography, enzyme-linked immunosorbent assay, and electrochemical methods [ 48 , 49 , 50 ] have been used to detect neonicotinoid compounds. Although these methods can achieve high-sensitivity detection, their high cost, time-consuming nature, and complex sample preparation hinder their widespread application.…”

Section: Paper-based Molecular-imprinting Technologymentioning

confidence: 99%

Paper-Based Molecular-Imprinting Technology and Its Application

Liu

2022

Biosensors

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Paper-based analytical devices (PADs) are highly effective tools due to their low cost, portability, low reagent accumulation, and ease of use. Molecularly imprinted polymers (MIP) are also extensively used as biomimetic receptors and specific adsorption materials for capturing target analytes in various complex matrices due to their excellent recognition ability and structural stability. The integration of MIP and PADs (MIP-PADs) realizes the rapid, convenient, and low-cost application of molecular-imprinting analysis technology. This review introduces the characteristics of MIP-PAD technology and discusses its application in the fields of on-site environmental analysis, food-safety monitoring, point-of-care detection, biomarker detection, and exposure assessment. The problems and future development of MIP-PAD technology in practical application are also prospected.

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Section: Paper-based Molecular-imprinting Technologymentioning

confidence: 99%

Paper-Based Molecular-Imprinting Technology and Its Application

Liu

2022

Biosensors

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“…Since IMI is an electroactive material, electroanalytical techniques have received much attention for the detection of IMI. [2,3,12] These techniques allow simple operation and offer rapid and on-site response with high sensitivity. In electrochemical measurements, electrodes are the key components and their modifications with various nanomaterials/composites have facilitated the enhanced performance of the fabricated biosensors.…”

Section: Introductionmentioning

confidence: 99%

“…However, they all are laborious, time ‐ consuming, and require skilled technicians and the use of sophisticated instruments. Since IMI is an electroactive material, electroanalytical techniques have received much attention for the detection of IMI [2,3,12] . These techniques allow simple operation and offer rapid and on ‐ site response with high sensitivity.…”

Section: Introductionmentioning

confidence: 99%

3D‐Architectured MoS₂‐Microflower‐Modified Electrodes toward Electrochemical Determination of Imidacloprid

et al. 2022

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We report the fabrication and analytical performance studies of electrochemical sensors based on hydrothermally grown 3D MoS 2 -microflower-modified Glassy Carbon (GCE) and Carbon Paste Electrodes (CPE) for the sensitive detection of the insecticide imidacloprid (IMI). As compared to MoS 2 /GCE, the fabricated MoS 2 /CPE demonstrates a faster electron transfer and better catalytic ability. MoS 2 /CPE sensor delivers its best performance towards the determination of IMI in PBS solution of pH 7.4, owing to its porous nature which can accommodate a higher number of active electrochemical reaction sites. The sensor exhibits a sensitivity value of 2.296 μA μM À 1 cm À 2 with lower detection and quantification limits of 12 � 0.24 nM and 40 � 0.8 nM respectively. The proposed sensor also exhibits linearity in the detection of IMI from 1 to 100 μM.

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“…Therefore, sensitive and on-site methods are demanded for rapid analysis of neonicotinoid pesticide residues. In recent years, various analytical methods such as capillary electrophoresis, high-performance liquid chromatography (HPLC), enzyme-linked immunosorbent assay, and electrochemical methods have been used for the detection of IMI or ACE. − Although these methods can achieve high detection sensitivity, they suffer problems of expensive costs and time-consuming sample preparation, which hinder their universality . Then, it is important to develop a simple, rapid, and inexpensive analytical technique for in situ identification of IMI and ACE for food safety and public health.…”

Section: Introductionmentioning

confidence: 99%

Paper-Based SERS Sensing Platform Based on 3D Silver Dendrites and Molecularly Imprinted Identifier Sandwich Hybrid for Neonicotinoid Quantification

Zhao

Liu

Zhang

et al. 2020

ACS Appl. Mater. Interfaces

100

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Real-time monitoring of neonicotinoid pesticide residues is of great significance for food security and sustainable development of the ecological environment. Herein, a paper-based surface-enhanced Raman scattering (SERS) amplified approach was proposed by virtue of multilayered plasmonic coupling amplification. The unique plasmonic SERS multilayer was constructed using three-dimensional (3D) silver dendrite (SD)/electropolymerized molecular identifier (EMI)/silver nanoparticle (AgNP) sandwich hybrids with multiple hotspots and a strong electromagnetic field in nanogaps. Dendritelike 3D silver materials with remarkably high accessible surface areas and the lightning rod effect constituted the first-order enhancement of paper-based sensors. Molecular identifiers coated upon an SD layer as the interlayer were used for target capture and enrichment. Subsequently, AgNPs featuring rough surface and local plasma resonance decorated as the top layer formed the secondary enhancement of the amplification strategy. As the most brilliant part, dendritelike 3D silver coupled with AgNPs has established double Ag layers to accomplish a multistage enhancement of SERS signals based on the superposition of their electromagnetic fields. Owning to the distinctive design of the multiple coupling amplification strategy, the fabricated SERS paper chips demonstrated impressive specificity and ultrahigh sensitivity in the detection of imidacloprid (IMI), with a detection limit as low as 0.02811 ng mL −1 . More importantly, the multiple SERS enhancement paper chip holds great potential for automated screening of a variety of contaminants.

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Fabrication of a highly sensitive and selective modified electrode for imidacloprid determination based on designed nanocomposite graphene quantum dots/ionic liquid/multiwall carbon nanotubes/polyaniline

Cited by 53 publications

References 33 publications

Paper-Based Molecular-Imprinting Technology and Its Application

Paper-Based Molecular-Imprinting Technology and Its Application

3D‐Architectured MoS₂‐Microflower‐Modified Electrodes toward Electrochemical Determination of Imidacloprid

Paper-Based SERS Sensing Platform Based on 3D Silver Dendrites and Molecularly Imprinted Identifier Sandwich Hybrid for Neonicotinoid Quantification

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Fabrication of a highly sensitive and selective modified electrode for imidacloprid determination based on designed nanocomposite graphene quantum dots/ionic liquid/multiwall carbon nanotubes/polyaniline

Cited by 53 publications

References 33 publications

Paper-Based Molecular-Imprinting Technology and Its Application

Paper-Based Molecular-Imprinting Technology and Its Application

3D‐Architectured MoS2‐Microflower‐Modified Electrodes toward Electrochemical Determination of Imidacloprid

Paper-Based SERS Sensing Platform Based on 3D Silver Dendrites and Molecularly Imprinted Identifier Sandwich Hybrid for Neonicotinoid Quantification

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3D‐Architectured MoS₂‐Microflower‐Modified Electrodes toward Electrochemical Determination of Imidacloprid