Sensitive and on-site detection of glyphosate based on papain-stabilized fluorescent gold nanoclusters

Hong, Chengyi; Ye, Sishi; Dai, Chenying; Wu, Chengzhi; Chen, Lingling; Huang, Zhiyong

doi:10.1007/s00216-020-02952-7

Cited by 29 publications

(14 citation statements)

References 29 publications

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“…In the field of environmental monitoring, FL was applied on detection of metal ions [155][156][157][158][159][160][161][162], anion [163][164][165], gas [155], and organic compounds [166][167][168]. Liu [155] has reported a FL probe on μPads with carbazole for the detection of Cu 2+ and gaseous H 2 S. In 2019, a paper-based platform was established [157] using a hand-held UV lamp as an excitation resource.…”

Section: Environmental Monitoringmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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Point-of-care testing (POCT), as a portable and user-friendly technology, can obtain accurate test results immediately at the sampling point. Nowadays, microfluidic paper-based analysis devices (μPads) have attracted the eye of the public and accelerated the development of POCT. A variety of detection methods are combined with μPads to realize precise, rapid and sensitive POCT. This article mainly introduced the development of electrochemistry and optical detection methods on μPads for POCT and their applications on disease analysis, environmental monitoring and food control in the past 5 years. Finally, the challenges and future development prospects of μPads for POCT were discussed.

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Section: Environmental Monitoringmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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“…Of note, the general applicability of this method to multiple phases allowed the researchers to track the fate of the pesticide analyte as well as of its most common degradation byproduct, flufenacet ESA. Other detection methods that operate for both soil and aqueous detection have also been reported (Bakhoum et al, 2020b;Hong et al, 2020).…”

Section: Solution-state Pesticide Detectionmentioning

confidence: 99%

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

Levine

2021

Front. Chem.

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The detection of pesticides in real-world environments is a high priority for a broad range of applications, including in areas of public health, environmental remediation, and agricultural sustainability. While many methods for pesticide detection currently exist, the use of supramolecular fluorescence-based methods has significant practical advantages. Herein, we will review the use of fluorescence-based pesticide detection methods, with a particular focus on supramolecular chemistry-based methods. Illustrative examples that show how such methods have achieved success in real-world environments are also included, as are areas highlighted for future research and development.

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“…Still, studies of AuNCs on OP screening are scarcely reported. To the best of our knowledge, only 12 related works have been reported. − However, most of them (10) detect OPs through the unique response of signalers to thiocholine and require additional quenchers, and the other two sensors are built based on OPs’ depression on trypsin or alkaline phosphatase activity, which might not like AChE to be specifically inhibited by OPs. , In addition, most of the AuNCs are prepared using monothiol compounds, BSA, and polyethyleneimine as reductants and only have −OH, −NH 2 , and −COOH groups; thus, developing AuNCs with new functionalized groups is in high demand.…”

Section: Introductionmentioning

confidence: 99%

pH and Redox Dual-Response Disulfide Bond-Functionalized Red-Emitting Gold Nanoclusters for Monitoring the Contamination of Organophosphorus Pesticides in Foods

Yang

et al. 2021

Anal. Chem.

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Most of the fluorescence sensors require choline oxidase or quenchers to detect organophosphorus pesticides (OPs) based on a single hydrolysate and suffer from high cost, complex procedures, weak stability, and low sensitivity. Here, we proposed a brand-new fluorescence strategy for highly sensitive detection of OPs based on both hydrolysate-response disulfide bond-functionalized gold nanoclusters (S-S-AuNCs) without additional substances. S-S-AuNCs were synthesized via a facile one-step redox reaction and emitted bright red light with ultrasmall size and high water dispersion. Interestingly, S-S-AuNCs displayed a unique response to thiol compounds and low pH values and were thus pioneered as a high-efficiency sensor for OPs based on acetylcholinesterase (AChE)-catalyzed hydrolysis of acetylthiocholine into thiocholine and CH3COOH and OP inhibition of AChE activity. Further, S-S-AuNCs were employed to monitor the residue, distribution, and metabolization of methidathion in pakchoi with acceptable results. We believe that this work supplies a simpler and more highly sensitive approach for OP assay than the known ones and opens a new avenue to development of multistimulus-responsive and high-performance fluorescence substances.

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Sensitive and on-site detection of glyphosate based on papain-stabilized fluorescent gold nanoclusters

Cited by 29 publications

References 29 publications

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

pH and Redox Dual-Response Disulfide Bond-Functionalized Red-Emitting Gold Nanoclusters for Monitoring the Contamination of Organophosphorus Pesticides in Foods

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