Red-emissive carbon dots based fluorescent and smartphone-integrated paper sensors for sensitive detection of carbendazim

Guo, Haipeng; Yang, Ruiqi; Lei, Doudou; Ma, Xiao; Zhang, Dingkun; Wang, Jiabo; Zhou, Lidong; Kong, Weijun

doi:10.1016/j.microc.2023.108586

Cited by 14 publications

(1 citation statement)

References 45 publications

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“…Carbendazim (CBZ) is a broad-spectrum fungicide with excellent activity and durability. It has been widely used in fruits and vegetables to protect crops from pathogenic bacteria and pests [ 1 , 2 ]. However, as a benzimidazole cyclic compound, carbendazim has strong stability and is not easily degraded in soil for a long time, thus causing serious residue problems and endangering environmental and food safety [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor Based on Laser-Induced Graphene for Carbendazim Detection in Water

Wang

et al. 2023

Foods

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Carbendazim (CBZ) abuse can lead to pesticide residues, which may threaten the environment and human health. In this paper, a portable three-electrode sensor based on laser-induced graphene (LIG) was proposed for the electrochemical detection of CBZ. Compared with the traditional preparation method of graphene, LIG is prepared by exposing the polyimide film to a laser, which is easily produced and patterned. To enhance the sensitivity, platinum nanoparticles (PtNPs) were electrodeposited on the surface of LIG. Under optimal conditions, our prepared sensor (LIG/Pt) has a good linear relationship with CBZ concentration in the range of 1–40 μM, with a low detection limit of 0.67 μM. Further, the sensor shows good recovery rates for the detection of CBZ in wastewater, which provides a fast and reliable method for real-time analysis of CBZ residues in water samples.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor Based on Laser-Induced Graphene for Carbendazim Detection in Water

Wang

et al. 2023

Foods

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Synthesis of Good Solid‐State Emissive Carbon Dots through Microwave‐Assisted Microemulsion Process

Yue,

Zhang,

Liu

et al. 2024

Part & Part Syst Charact

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Environmental‐friendly carbon dots (CDs) have found wide applications in the fields of white light emitting diode (WLED), chemical sensor, wide‐gamut display, etc. However, for the aggregation‐caused quenching (ACQ) effect, high dose of CDs immobilization generally suffers from the great fluorescence quenching, hindering their practical uses in many cases. In the present work, a one‐step microwave‐assisted microemulsion process is developed to prepare matrix‐free green CDs powders with absolute fluorescent quantum yield (QY) up to 48.34%. From dilute solution to matrix‐free powder, the QY of CDs decreases only about 20%, significant smaller than the sample prepared without surfactant (74%). Structural characterization and fluorescent lifetime measurements suggest that the passivation of hydrophobic long‐alkyl chains from surfactant Span‐80 is very key for their good solid‐state photoluminescence (PL). For the good solid‐state PL and various solvent‐compatibility, the CDs reported show promising applications in the fabrication of WLED and the measurement of water content of ethanol/water solution. This work provides a new idea to design and simply synthesize desirable CDs‐based luminescent materials with good solid‐state PL.

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Ensuring food safety by artificial intelligence-enhanced nanosensor arrays

Yu,

Zhao,

Xie

2024

Advances in Food and Nutrition Research

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Red-emissive carbon dots based fluorescent and smartphone-integrated paper sensors for sensitive detection of carbendazim

Cited by 14 publications

References 45 publications

Electrochemical Sensor Based on Laser-Induced Graphene for Carbendazim Detection in Water

Electrochemical Sensor Based on Laser-Induced Graphene for Carbendazim Detection in Water

Synthesis of Good Solid‐State Emissive Carbon Dots through Microwave‐Assisted Microemulsion Process

Ensuring food safety by artificial intelligence-enhanced nanosensor arrays

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