Highly selective and sensitive colorimetric detection for glyphosate based on β-CD@DNA-CuNCs enzyme mimics

Tai, Shengmei; Qian, Zhijuan; Ren, Hongxin; Barimah, Alberta Osei; Peng, Chifang; Wei, Xinlin

doi:10.1016/j.aca.2022.339992

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…The limit of detection is 0.01 μg/ml, which is substantially lower than the maximum residue of 0.7 μg/ml in drinking water by the US EPA and GB5749-2022 (Drinking Water Standards andHealth Advisories., 2018;Standardization Administration of China., 2022). The sensitivity is comparable to or better than most other methods for glyphosate assay (Chang et al, 2016;Hou et al, 2020;Tai et al, 2022).…”

Section: Fluorescence Assay For Glyphosatementioning

confidence: 80%

An “on-off-on” fluorescence probe for glyphosate detection based on Cu2+ modulated g-C3N4 nanosheets

Qin

Huang²,

Ye³

2022

Front. Chem.

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The analysis of glyphosate is essential to agricultural production, environment protection and public health. Herein, we proposed a fast and convenient “on-off-on” fluorescence platform for sensitive detection of glyphosate via Cu2+ modulated g-C3N4 nanosheets. The fluorescence of the system was quenched by Cu2+. With the presence of glyphosate, the fluorescence could be restored due to the formation of Cu2+- glyphosate complex. The proposed method was cost-effective with label-free and enzyme-free. Moreover, it exhibits high sensitivity with a low detection limit of 0.01 μg/ml. Furthermore, the proposed method has been successfully monitored glyphosate in real samples.

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Section: Fluorescence Assay For Glyphosatementioning

confidence: 80%

An “on-off-on” fluorescence probe for glyphosate detection based on Cu2+ modulated g-C3N4 nanosheets

Qin

Huang²,

Ye³

2022

Front. Chem.

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“…The method rapidly detected Glyp in lake water and food samples, demonstrating high sensitivity and selectivity. It shows great potential for monitoring Glyp residue in food …”

Section: Application Of Dna-templated Mncs In Food Safetymentioning

confidence: 99%

“…It shows great potential for monitoring Glyp residue in food. 91 Hg 2+ is potentially toxic to human beings and the environment. Using reticular DNA as template, a new type of CuNCs with aggregation morphology was prepared by Li et al It can quantify Hg 2+ in a very wide range (50 pM to 500 μM), and the detection limit is extremely low (16 pM).…”

Section: Dna-agncs Powered Biosensorsmentioning

confidence: 99%

“…(A) A method for detecting MNase activity and identifying S. aureus by DNA-templated fluorescent CuNCs was presented . (B) A simple colorimetric detection method for Glyp was developed by using β-CD@DNA-CuNCs enzyme mimic . (C) Using reticulated DNA as a template, a novel CuNCs with aggregation morphology was prepared for the detection of Hg 2+ .…”

Section: Application Of Dna-templated Mncs In Food Safetymentioning

confidence: 99%

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Recent Advances of DNA-Templated Metal Nanoclusters for Food Safety Detection: From Synthesis, Applications, Challenges, and Beyond

Tang,

Lu,

Wang

et al. 2024

J. Agric. Food Chem.

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Food safety concerns have become a significant threat to human health and well-being, catching global attention in recent years. As a result, it is imperative to research conceptually novel biosensing and effective techniques for food matrices detection. Currently, DNA-templated metal nanoclusters (DNA-MNCs) are considered as one of the most promising nanomaterials due to their excellent properties in biosensing. While DNA-MNCs have garnered increasing interest, the reviews of design strategies, applications, and futuristic prospects for biosensing have been hardly found especially in food safety. The synthesis of DNA-MNCs and their use as biosensing materials in food contamination detection, including pathogenic bacteria, toxins, heavy metals, residues of pesticides, and others were comprehensively reviewed. In addition, we summarize the properties of DNA-MNCs briefly and discuss the challenges and future trends. The application of DNA-MNCs powered biosensing has been demonstrated and actively studied, which is a promising paradigm for food safety testing that can supplement or even replace current existing methods. Despite the challenges of difficulty regulating accurately, poor stability, low quantum yield, and difficult commercial transformation, the application prospects of DNA-MNCs biosensors are promising. This review aims to provide insights and directions for the future development of DNA-MNCs based food detection technology.

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“…Compared to the natural enzymes, nanomaterials are known for various enzyme mimicking activities. NMP magnetite nanoparticles, carbon compounds and MOFs [57][58][59][60][61] have been developed as enzyme mimics for catalase, silicate, esterase, peroxidase, glucose oxidase, nuclease and superoxide dismutase activity. 62 Among them, NMPs and their…”

Section: Nanozymesmentioning

confidence: 99%

Nanomaterial-based biosensors for the detection of foodborne bacteria: a review

Zheng,

Jin,

Xiong

et al. 2023

Analyst

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Highly selective and sensitive colorimetric detection for glyphosate based on β-CD@DNA-CuNCs enzyme mimics

Cited by 18 publications

References 39 publications

An “on-off-on” fluorescence probe for glyphosate detection based on Cu2+ modulated g-C3N4 nanosheets

An “on-off-on” fluorescence probe for glyphosate detection based on Cu2+ modulated g-C3N4 nanosheets

Recent Advances of DNA-Templated Metal Nanoclusters for Food Safety Detection: From Synthesis, Applications, Challenges, and Beyond

Nanomaterial-based biosensors for the detection of foodborne bacteria: a review

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