Promising energy transfer system between fuorine and nitrogen Co-doped graphene quantum dots and Rhodamine B for ratiometric and visual detection of doxycycline in food

Tang, Siyuan; Chen, Da; Li, Xiameng; Wang, Changxing; Li, Tingting; Ma, Jiaxing; Guo, Guoqiang; Guo, Qinglei

doi:10.1016/j.foodchem.2022.132936

Cited by 40 publications

(12 citation statements)

References 38 publications

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“…Ratiometric colorimetric probes have self-calibration behavior to enhance the reliability, sensitivity, and selectivity of monitoring in relatively complex matrices and further avoid false positive. 18 For instance, an unprecedented bimodal ratiometric colorimetric/fluorometric method by exploring a novel bifunctional artificial oxidase mimic was developed based on Mn-doped N-rich carbon dots (Mn-CDs) for achieving the high-performance determination of nitrite in complicated matrices. 19 Consequently, how to rationally construct the sensing platform to realize the dualsignal response of NO 2 − is a great challenge.…”

Section: Nitrite (Nomentioning

confidence: 99%

Plasmon-Mediated Oxidase-like Activity on Ag@ZnS Heterostructured Hollow Nanowires for Rapid Visual Detection of Nitrite

Tian

Huang

et al. 2023

Inorg. Chem.

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Rational design of fast and sensitive determination of nitrite (NO2 –) from a complicated actual sample overtakes a crucial role in constructing a high-efficiency sensing platform. Herein, a visual NO2 – sensing platform with outstanding selectivity, sensitivity, and stability based on a surface plasmon resonance (SPR)-enhanced oxidase-like activity has been proposed. Benefiting from the intrinsic photocatalytic activity and limited light penetration of ZnS, the oxidase-like activity based on ZnS decorated on Ag nanowires (Ag@ZnS) is determined. It is demonstrated that the electrons are generated efficiently on the surface of ZnS and then transferred into the hot electrons of Ag with the help of localized SPR excitation, thus greatly oxidating the colorless 3,3′,5,5′-tetramethylbenzidine (TMB) to produce dark blue oxidized TMB (oxTMB). When nitrite is added into the reaction system, the oxTMB will selectively react with NO2 – to generate diazotized oxTMB, leading to a visual color change from dark blue to light green and subsequently to dark yellow. Owing to the specific recognition between nitrite and oxTMB, the recovery of catalytic activity induced an enhanced colorimetric test with a wider linear range for NO2 – determination, an ultralow detection limit of 0.1 μM, excellent selectivity, and practicability for application in real samples. This plasmon-enhanced oxidase-like activity not only provides a smart approach to realize a colorimetric assay with high sensitivity and simplicity but also modulates oxidase-like activities.

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Section: Nitrite (Nomentioning

confidence: 99%

Plasmon-Mediated Oxidase-like Activity on Ag@ZnS Heterostructured Hollow Nanowires for Rapid Visual Detection of Nitrite

Tian

Huang

et al. 2023

Inorg. Chem.

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“…The polymer materials used for physical dispersion vary depending on the functional groups on the surface of the CDs. These polymer matrices mainly include: polyvinyl alcohol (PVA), [63][64][65][66][67][68][69][70][71][72][73] polyvinylpyrrolidone (PVP), [34,[74][75][76][77][78][79][80][81] polyvinyl butyral (PVB), [82][83][84] polymethyl methacrylate (PMMA), [30,[85][86][87][88][89][90] polydimethylsiloxane (PDMS), [91][92][93] polyethylene glycol (PEG), [32,[94][95][96] polyurethane (PU), [97,98] polyamide (PA), [99] polystyrene (PS), [100] polyvinyl carbazole (PVK), [101] and epoxy resins. [102,103] In a suitable concentration range, the polymer matrix can effectively support SSF by inhibiting the aggregation of the CDs and thus suppressing non-radiative transitions.…”

Section: Polymer-matrix-assisted Dispersion Of Carbon Dots For Solid-...mentioning

confidence: 99%

Innovations in the Solid‐State Fluorescence of Carbon Dots: Strategies, Optical Manipulations, and Applications

Wang

Song

et al. 2023

Adv Funct Materials

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Carbon dots (CDs)—carbon nanoparticles smaller than 10 nm—have attracted widespread attention owing to their excellent optical properties. However, high‐performing CDs often suffer from severe aggregation‐induced quenching in the solid state, which limits their commercial applicability. Therefore, CD materials with efficient solid‐state luminescence are sought. As research on the structure and photoluminescence mechanisms of CDs has intensified in recent years, strategies to construct fluorescent solid‐state CD materials and tune their emissions have broadened. This article reviews recent advances in the strategies and mechanisms for attaining solid‐state fluorescence in CDs, describes specific ways to tune the optical properties of this fluorescence, introduces the latest applications of the resulting CDs to optoelectronics, biology, and sensing, and finally considers the prospects for future application and current challenges facing the development of solid‐state fluorescence in CDs.

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“…It has also been used in real life for the detection of DOX in milk, pork, and water samples (Figure 29d). 803 It is challenging to construct subcellular organelle-targeting GQDs probes rationally. Zhao et al synthesized a sensing platform by covalently cyanine 5.5, which inherits the advantages of high fluorescence intensity, good photostability, resistance to photobleaching, good biocompatibility, and low toxicity of nanomaterials and organic materials, this probe can not only target mitochondria but also ratiometrically measures ONOO − with an LOD of 0.3 μmol•L −1 in the linear range of 0−6.0 μmol•L −1 (Figure 29c).…”

Section: Chemicalmentioning

confidence: 99%

Section: Sensing and Imaging Applications Of Cds-based Sensorsmentioning

confidence: 99%

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Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Yang,

Xu,

et al. 2023

Chem. Rev.

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Advances in nanotechnology and nanomaterials have attracted considerable interest and play key roles in scientific innovations in diverse fields. In particular, increased attention has been focused on carbon-based nanomaterials exhibiting diverse extended structures and unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, carbon nanodiamonds, and carbon dots, possess excellent bioaffinities and superior fluorescence properties that make these structures suitable for application to environmental and biological sensing, imaging, and therapeutics. This review provides a systematic overview of the classification and structural properties, design principles and preparation methods, and optical properties and sensing applications of zero-dimensional carbon nanomaterials. Recent interesting breakthroughs in the sensitive and selective sensing and imaging of heavy metal pollutants, hazardous substances, and bioactive molecules as well as applications in information encryption, super-resolution and photoacoustic imaging, and phototherapy and nanomedicine delivery are the main focus of this review. Finally, future challenges and prospects of these materials are highlighted and envisaged. This review presents a comprehensive basis and directions for designing, developing, and applying fascinating fluorescent sensors fabricated based on zero-dimensional carbon nanomaterials for specific requirements in numerous research fields.

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Promising energy transfer system between fuorine and nitrogen Co-doped graphene quantum dots and Rhodamine B for ratiometric and visual detection of doxycycline in food

Cited by 40 publications

References 38 publications

Plasmon-Mediated Oxidase-like Activity on Ag@ZnS Heterostructured Hollow Nanowires for Rapid Visual Detection of Nitrite

Plasmon-Mediated Oxidase-like Activity on Ag@ZnS Heterostructured Hollow Nanowires for Rapid Visual Detection of Nitrite

Innovations in the Solid‐State Fluorescence of Carbon Dots: Strategies, Optical Manipulations, and Applications

Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

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