Mesoporous molecularly imprinted polymer core@shell hybrid silica nanoparticles as adsorbent in microextraction by packed sorbent for multiresidue determination of pesticides in apple juice

Dinali, Laíse Aparecida Fonseca; Oliveira, Hanna Leijoto de; Teixeira, Leila Suleimara; Borges, Warley de Souza; Borges, Keyller Bastos

doi:10.1016/j.foodchem.2020.128745

Cited by 38 publications

(10 citation statements)

References 40 publications

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“…Dinali et al synthesized a mesoporous molecularly imprinted polymer (core@mMIP) on the surface of silica nanoparticles to use it as a filler sorbent for microextraction for the selective determination of pesticides in apple juice. The sensor has been successfully applied to real samples of processed and fresh apple juice [ 26 ]. Li et al successfully synthesized novel core–shell structured zeolite imidazole skeleton-8@ molecularly imprinted polymers by a surface imprinting technique and used them as sorbents for solid-phase extraction of organophosphorus pesticides.…”

Section: Discussionmentioning

confidence: 99%

Technology for Rapid Detection of Cyromazine Residues in Fruits and Vegetables: Molecularly Imprinted Electrochemical Sensors

et al. 2022

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Cyromazine is an insect growth regulator insecticide with high selectivity and is widely used in the production and cultivation of fruits and vegetables. In recent years, incidents of excessive cyromazine residues in food have occurred frequently, and it is urgent to establish an accurate, fast, and convenient method for the detection of cyromazine residues to ensure the safety of edible agricultural products. To achieve rapid detection of cyromazine residues, we prepared a molecularly imprinted electrochemical sensor for the detection of cyromazine residues in agricultural products. Samples of tomato (Lycopersicon esculentum Miller), cowpea (Vigna unguiculata), and water were tested for the recovery rate of cyromazine. The results showed that the concentration of cyromazine showed a good linear relationship with the peak response current of the sensor developed in this study. The lower limit of detection for cyromazine was 0.5 µmol/L, and the sensor also had good reproducibility and interference resistance. This paper can be used as a basis for the study of methods for the detection of cyromazine residues in edible agricultural products.

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Section: Discussionmentioning

confidence: 99%

Technology for Rapid Detection of Cyromazine Residues in Fruits and Vegetables: Molecularly Imprinted Electrochemical Sensors

et al. 2022

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“…Ye et al also coated molecularly imprinted polymers on the surface of monodispersed silica nanoparticles via a sol−gel process for the colorimetric detection of 3-phenoxybenzaldehyde (metabolite of pyrethroid pesticides), 235 where a linear concentration range of 0.1−1 μg/mL with a detection limit of 0.052 μg/mL was found. Recently, a mesoporous molecularly imprinted polymer was coated on the surface of silica nanoparticles to produce a core−shell structure complex, which was then used as the adsorbent in a microextraction process for the selective determination of pesticides in apple juice, 236 with a linear range of 0.02−10 μg/mL and detection limit of 0.005 μg/mL presented.…”

Section: ■ Safe Pesticide Applicationmentioning

confidence: 99%

Multiple Roles of Mesoporous Silica in Safe Pesticide Application by Nanotechnology: A Review

Kong

Zhang

Wang

2021

J. Agric. Food Chem.

106

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Pollution related to pesticides has become a global problem due to their low utilization and non-targeting application, and nanotechnology has shown great potential in promoting sustainable agriculture. Nowadays, mesoporous silica-based nanomaterials have garnered immense attention for improving the efficacy and safety of pesticides due to their distinctive advantages of low toxicity, high thermal and chemical stability, and particularly size tunability and versatile functionality. Based on the introduction of the structure and synthesis of different types of mesoporous silica nanoparticles (MSNs), the multiple roles of mesoporous silica in safe pesticide application using nanotechnology are discussed in this Review: (i) as nanocarrier for sustained/ controlled delivery of pesticides, (ii) as adsorbent for enrichment or removal of pesticides in aqueous media, (iii) as support of catalysts for degradation of pesticide contaminants, and (iv) as support of sensors for detection of pesticides. Several scientific issues, strategies, and mechanisms regarding the application of MSNs in the pesticide field are presented, with their future directions discussed in terms of their environmental risk assessment, in-depth mechanism exploration, and cost−benefit consideration for their continuous development. This Review will provide critical information to related researchers and may open up their minds to develop new advances in pesticide application.

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“…Metal-organic frameworks (MOFs) are a set of molecular networks that are arranged on a three-dimensional framework with metal centers and bridging organic ligands [ 13 , 14 ]. Compared with classical solid adsorbents such as zeolites [ 15 ], activated carbon [ 16 ], and silica materials [ 17 ], MOFs have the advantages of adjustable pore size, multiple active sites, and thermal and chemical stability. MOFs have good enrichment properties for effective target enrichment and enhanced signal detection [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

NH2-MIL-125(Ti)/Reduced Graphene Oxide Enhanced Electrochemical Detection of Fenitrothion in Agricultural Products

Shu

Zou

et al. 2023

Foods

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The abuse of organophosphate pesticides causes serious threats to human health, which threatens approximately 3 million people and leads to more than 2000 deaths each year. Therefore, it is necessary to determine the residue of fenitrothion (FT) in environmental and food samples. Herein, we developed a non-enzymatic electrochemical sensor with differential pulse voltammetry signal output to determine FT in model solutions and spiked samples. Delicately, the sensor was designed based on the fabrication of hydrothermally synthesized titanium-based metal-organic frameworks (MOFs) material (NH2-MIL-125(Ti))/reduced graphene oxide (RGO) (NH2-MIL-125(Ti)/RGO) nanocomposites for better target enrichment and electron transfer. The peak response of differential pulse voltammetry for FT under optimized conditions was linear in the range of 0.072–18 μM with the logarithm of concentrations, and the detection limit was 0.0338 μM. The fabricated sensor also demonstrated high stability and reproducibility. Moreover, it exhibited excellent sensing performances for FT in spiked agricultural products. The convenient fabrication method of NH2-MIL-125(Ti)/RGO opens up a new approach for the rational design of non-enzymatic detection methods for pesticides.

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Mesoporous molecularly imprinted polymer core@shell hybrid silica nanoparticles as adsorbent in microextraction by packed sorbent for multiresidue determination of pesticides in apple juice

Cited by 38 publications

References 40 publications

Technology for Rapid Detection of Cyromazine Residues in Fruits and Vegetables: Molecularly Imprinted Electrochemical Sensors

Technology for Rapid Detection of Cyromazine Residues in Fruits and Vegetables: Molecularly Imprinted Electrochemical Sensors

Multiple Roles of Mesoporous Silica in Safe Pesticide Application by Nanotechnology: A Review

NH2-MIL-125(Ti)/Reduced Graphene Oxide Enhanced Electrochemical Detection of Fenitrothion in Agricultural Products

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