Rapid and sensitive detection of methyl parathion in rice based on carbon quantum dots nano-fluorescence probe and inner filter effect

Zhang, Ruiting; Zhang, Liyuan; Yu, Runzhong; Wang, Changyuan

doi:10.1016/j.foodchem.2023.135679

Cited by 38 publications

(8 citation statements)

References 23 publications

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“…These values are similar with those of conventional graphite materials. 31 The D and G bands of the material are primarily created via the hybridization of SP 3 and SP 2 carbon atoms, respectively. The typical peak of CS is close to 1590 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

“…In order to improve output, pesticides are routinely used to handle these problems during planting and production. Because of its high efficacy and broadspectrum insecticidal action, methyl parathion (MP), one of the most extensively used organophosphorus pesticides (OPs), is frequently employed to treat pests such as Lepidoptera 3 and Hemiptera, 4 among others. However, unchecked and excessive MP consumption causes excessive residues to build up on the surface of various CHM, which has a negative impact on their safety.…”

mentioning

confidence: 99%

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A Rapid and Easy Procedure of Enzyme Biosensor based on Nitrogen-Doped Graphene for Detection of Methyl Parathion in CHM

Sun,

Yu,

et al. 2024

J. Electrochem. Soc.

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Methyl parathion (MP), an organophosphorus pesticide that is frequently used to control pests during the planting process of Chinese herbal medicine (CHM), has been used without sufficient control, leading to excessive residues on the surface of CHM, which has a serious impact on the quality and safety of CHM and their preparations. Consequently, it is crucial to carefully control MP during the cultivation, processing, and manufacture of CHM. Based on this, nitrogen-doped graphene (N-Gr) with a high conductivity and chitosan (CS) with good stability were used to modify the glassy carbon electrode (GCE). Subsequently, the prussian blue (PB) with catalytic activity and gold nanoparticles (AuNPs) with excellent biocompatibility were deposited by the electrodeposition method to form the AuNPs/PB/CS@N-Gr/GCE. Then, the acetylcholinesterase (AChE) was effectively immobilized on the electrode surface by covalent bonding between AuNPs and AChE through gold-sulfhydryl bonds. Finally, a rapid and easy procedure of enzyme biosensor (AChE/AuNPs/PB/CS@N-Gr/GCE) for sensitive detection of MP pesticide residues was fabricated. Herein, PB catalyzes the redox reaction of thiocholine, which is produced when acetylthiocholine iodide (ATCHI) undergoes efficient hydrolysis catalyzed by AChE. This process effectively promoted electron transfer, amplifying the sensor’s response signal. After the experimental conditions are optimized, the limit of detection (LOD) for MP is found to be 9.47 × 10−5 μg ml−1. Exhibits a good linear relationship within the concentration range of 1 × 10−3 μg ml−1 ∼ 1 × 101 μg ml−1. Significantly, the fabricated enzyme biosensor excels in swiftly and sensitively detecting trace amounts of MP in real examples. Furthermore, it exhibits robust stability and reproducibility. The excellent performance of this enzyme biosensor not only offers a rapid and easy way to identify and find minute amounts of trace MP pesticide residues in CHM, but also serves as a technical guide for the creation of new, portable, and on-site pesticide residue detection technology for law enforcement.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

A Rapid and Easy Procedure of Enzyme Biosensor based on Nitrogen-Doped Graphene for Detection of Methyl Parathion in CHM

Sun,

Yu,

et al. 2024

J. Electrochem. Soc.

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“…The mechanism of the inner filter effect (IFE) is an effective strategy by transforming the absorption response to a fluorescence signal, which opens up new frontiers in converting conventional colorimetric protocol into fluorescent sensing ( Zhang et al, 2009 ; Kong et al, 2016 ; Chen et al, 2017 ; Sun et al, 2018 ). For example, Ruiting Zhang uses carbon quantum dots nano-fluorescence probe for rapid and sensitive detection of methyl parathion in rice based on the inner filter effect ( Zhang et al, 2023b ). It is reported that the energy conversion model of IFE considerably enhanced the detecting sensitivity and reduced the detection limit of the analyte relative to the absorbance alone ( Chen et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Glucose determination in human serum by applying inner filter effect quenching mechanism of upconversion nanoparticles

Chen¹,

Yang²,

Chen³

et al. 2023

Front. Bioeng. Biotechnol.

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Accurate blood glucose determination is essential to the clinical diagnosis and management of diabetes. This work establishes an inner filter effect (IFE) strategy between upconversion nanoparticles (UCNPs) and quinone-imine complex for glucose monitoring in human serum simply and efficiently. In this system, the enzyme glucose oxidase (GOx) catalyzes the reaction of glucose into hydrogen peroxide (H2O2) and gluconic acid when compulsion by oxygen. In the presence of horseradish peroxidase (HRP), the produced H2O2 can catalytically oxidize phenol and 4-amino antipyrine (4-AAP) to generate quinone-imine products. The purple-colored quinone-imine complex effectively absorbed the fluorescence of NaYF4:Yb3+, Er3+ UCNPs, leading to the strong fluorescence quenching of UCNPs through IFE. Thus, a new approach was established for glucose monitoring by determining the fluorescence intensity. Under the optimal condition, this approach shows better linearity to glucose from 2–240 μmol/L with a low detection limit at 1.0 μmol/L. Owing to the excellent fluorescence property and background-free interference of the UCNPs, the biosensor was applied for glucose measurements in human serum and got a satisfactory result. Furthermore, this sensitive and selective biosensor revealed great potential for the quantitative analysis of blood glucose or different kinds of H2O2-involved biomolecules for the application of clinical diagnosis.

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“…It has been demonstrated that MP easily accumulates in several foods and water, arousing severe harm to the human health and environment. According to the guideline from the European Union, the maximum residue limit of MP in a fruit system should be no more than 0.2 μg mL À1 [7,8]. Consequently, developing simple and sensitive methods to detect MP in agricultural and environmental samples is of great significance.…”

Section: Introductionmentioning

confidence: 99%

Simple and sensitive fluorescence sensing of methyl parathion based on the inner filter effect of p‐nitrophenol on nitrogen‐doped titanium carbide quantum dots

Yi,

Hou,

et al. 2023

Luminescence

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It is of great significance to develop an effective method for methyl parathion (MP) detection. Herein, a novel nitrogen‐doped titanium carbide quantum dots (N‐Ti3C2 QDs) was prepared and used to construct a simple and sensitive fluorescence sensing platform of MP by making use of inner filter effect (IFE). The prepared N‐Ti3C2 QDs can exhibit strong blue fluorescence at 434 nm. Meanwhile, MP could hydrolyze to produce p‐nitrophenol (p‐NP) under alkaline conditions, which showed a characteristic ultraviolet‐visible (UV‐visible) absorption peak at 405 nm, resulting in the fluorescence of N‐Ti3C2 QDs is effectively quenched by p‐NP. In addition, the investigation of time‐resolved fluorescence decays indicated that the corresponding quenching mechanism of p‐NP on N‐Ti3C2 QDs is due to the IFE. After optimizing the conditions, the as‐developed fluorescence sensing platform displayed wide detection range (0.1–30 μg mL−1) and low detection limit (0.036 μg mL−1) for MP, and it was also successfully applied for MP analysis in real water samples, thus it is expected that this simple, sensitive and enzyme‐free sensing platform shows great applications.

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Rapid and sensitive detection of methyl parathion in rice based on carbon quantum dots nano-fluorescence probe and inner filter effect

Cited by 38 publications

References 23 publications

A Rapid and Easy Procedure of Enzyme Biosensor based on Nitrogen-Doped Graphene for Detection of Methyl Parathion in CHM

A Rapid and Easy Procedure of Enzyme Biosensor based on Nitrogen-Doped Graphene for Detection of Methyl Parathion in CHM

Glucose determination in human serum by applying inner filter effect quenching mechanism of upconversion nanoparticles

Simple and sensitive fluorescence sensing of methyl parathion based on the inner filter effect of p‐nitrophenol on nitrogen‐doped titanium carbide quantum dots

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