Colorimetric sensor and visual enzyme sheets for sensitive detection of dimethoate residue in vegetables based on laccase-like activity of coral-like silver citrate

Xia, Lian; Han, Jianxun; Huang, Xiaohuan; Niu, Xiaojuan; Lin, Xin; Wu, Yuangen

doi:10.1016/j.foodcont.2023.110252

Cited by 4 publications

(2 citation statements)

References 36 publications

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“…Its acceptable value for daily intake is 0.002 mg/kg body weight day [ 14 ]. The most concerning aspect of human exposure to this acaricide is that it leads to acetylcholine accumulation in the body [ 15 ]. The presence of DIM residues in food may lead to severe health issues, such as depression, anxiety, and irritability.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the adverse effects of DIM residues on health, it is crucial to develop rapid, convenient, and sensitive methods for their detection in apple juices. Some detection methods, including the colorimetric method, immunoassays, chromatography, chromatography-mass spectrometry, and high-performance liquid chromatography-coupled tandem mass spectrometry (LC-MS/MS) have been used for the detection of DIM residues [ 14 , 15 , 19 , 20 ]. While these methods can accurately determine low concentrations of DIM, their accuracy, selectivity, and precision are generally negatively affected by complex food matrices [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Molecularly Imprinted Quartz Crystal Microbalance Sensor Based on Erbium Molybdate Incorporating Sulfur-Doped Graphitic Carbon Nitride for Dimethoate Determination in Apple Juice Samples

Özdemir,

Karslıoğlu,

Bankoğlu Yola

et al. 2024

Foods

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Dimethoate (DIM) as an organophosphorus pesticide is widely utilized especially in the cultivation of vegetables and fruits due to its killing effect on harmful insects. However, unconscious use of DIM in large amounts can also cause serious health problems. For these reasons, rapid and reliable detection of DIM from food samples is significant. In this study, a novel quartz crystal microbalance (QCM) sensor based on erbium molybdate incorporating sulfur-doped graphitic carbon nitride (EM/S-g-C3N4) and a molecularly imprinting polymer (MIP) was designed for DIM detection in apple juice samples. Firstly, an EM/S-g-C3N4 nanocomposite with high purity was prepared under hydrothermal conditions at high temperatures over a long period of time. After the modification of the EM/S-g-C3N4 nanocomposite on a QCM chip, the polymerization solution including N,N′-azobisisobutyronitrile (AIBN) as an initiator, ethylene glycol dimethacrylate (EGDMA) as a cross-linker, methacryloylamidoglutamic acid (MAGA) as a monomer, and DIM as an analyte was prepared. Then, the polymerization solution was dropped on an EM/S-g-C3N4 nanocomposite modified QCM chip and an ultraviolet polymerization process was applied for the formation of the DIM-imprinted polymers on the EM/S-g-C3N4 nanocomposite modified QCM chip. After the polymerization treatment, some characterization studies, including electrochemical, microscopic, and spectroscopic methods, were performed to illuminate the surface properties of the nanocomposite and the prepared QCM sensor. The values of the limit of quantification (LOQ) and the detection limit (LOD) of the prepared QCM sensor were as 1.0 × 10−9 M and 3.3 × 10−10 M, respectively. In addition, high selectivity, stability, reproducibility, and repeatability of the developed sensor was observed, providing highly reliable analysis results. Finally, thanks to the prepared sensor, it may be possible to detect pesticides from different food and environmental samples in the future.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Molecularly Imprinted Quartz Crystal Microbalance Sensor Based on Erbium Molybdate Incorporating Sulfur-Doped Graphitic Carbon Nitride for Dimethoate Determination in Apple Juice Samples

Özdemir,

Karslıoğlu,

Bankoğlu Yola

et al. 2024

Foods

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Digitalization of Colorimetric Sensor Technologies for Food Safety

Mazur,

Han,

Tjandra

et al. 2024

Advanced Materials

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Colorimetric sensors play a crucial role in promoting on‐site testing, enabling the detection and/or quantification of various analytes based on changes in colour. These sensors offer several advantages, such as simplicity, cost‐effectiveness, and visual readouts, making them suitable for a wide range of applications, including food safety and monitoring. A critical component in portable colorimetric sensors involves their integration with colour models for effective analysis and interpretation of output signals. The most commonly used models include CIELAB (Commission Internationale de l'Eclairage), RGB (Red, Green, Blue), and HSV (Hue, Saturation, Value). This review outlines the use of colour models via digitalisation in sensing applications within the food safety and monitoring field. Additionally, challenges, future directions, and considerations are discussed, highlighting a significant gap in integrating a comparative analysis towards determining the colour model that results in the highest sensor performance. The aim of this review is to underline the potential of this integration in mitigating the global impact of food spoilage and contamination on health and the economy, proposing a multidisciplinary approach to harness the full capabilities of colorimetric sensors in ensuring food safety.This article is protected by copyright. All rights reserved

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A stable colorimetric biosensor for highly selective detection of malathion residue in food based on aptamer-regulated laccase-mimic activity

Huang,

Tang,

Han

et al. 2024

Food Chemistry

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Colorimetric sensor and visual enzyme sheets for sensitive detection of dimethoate residue in vegetables based on laccase-like activity of coral-like silver citrate

Cited by 4 publications

References 36 publications

A Novel Molecularly Imprinted Quartz Crystal Microbalance Sensor Based on Erbium Molybdate Incorporating Sulfur-Doped Graphitic Carbon Nitride for Dimethoate Determination in Apple Juice Samples

A Novel Molecularly Imprinted Quartz Crystal Microbalance Sensor Based on Erbium Molybdate Incorporating Sulfur-Doped Graphitic Carbon Nitride for Dimethoate Determination in Apple Juice Samples

Digitalization of Colorimetric Sensor Technologies for Food Safety

A stable colorimetric biosensor for highly selective detection of malathion residue in food based on aptamer-regulated laccase-mimic activity

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