Carbon dots coated with molecularly imprinted polymers: A facile bioprobe for fluorescent determination of caffeic acid

Xu, Xiaoman; Xu, Guanhong; Wei, Fangdi; Yao, Chuang; Shi, Menglan; Cheng, Xin‐Bing; Chai, Yuying; Sohail, Muhammad; Hu, Qin

doi:10.1016/j.jcis.2018.06.050

Cited by 70 publications

(33 citation statements)

References 32 publications

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“…As to fluorimetric systems involving MIPs, in 2018 Hu and coworkers proposed a fluorescence quenching sensor based on silane-functionalized carbon dots coated with caffeic acid imprinted silane-based MIPs (CDs@MIPs) [ 139 ]. Fluorescence intensity of CDs@MIPs decreased linearly with the increase of caffeic acid in the range between 0.5 and 200 μM with a LOD of 0.11 μM, and the proposed method was successfully applied to the detection of caffeic acid in spiked human plasma.…”

Section: Optical and Fluorimetric Sensorsmentioning

confidence: 99%

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

2020

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Phenolic compounds are secondary metabolites frequently found in plants that exhibit many different effects on human health. Because of the relevant bioactivity, their identification and quantification in agro-food matrices as well as in biological samples are a fundamental issue in the field of quality control of food and food supplements, and clinical analysis. In this review, a critical selection of sensors and biosensors for rapid and selective detection of phenolic compounds is discussed. Sensors based on electrochemistry, photoelectrochemistry, fluorescence, and colorimetry are discussed including devices with or without specific recognition elements, such as biomolecules, enzymes and molecularly imprinted materials. Systems that have been tested on real matrices are prevalently considered but also techniques that show potential development in the field.

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Section: Optical and Fluorimetric Sensorsmentioning

confidence: 99%

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

2020

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“…26 However, at present, there are few reports on the detection of caffeic acid utilizing uorescence sensors, and most of them are detected by quantum dots or enzymatic methods. 23,[27][28][29] For example, a novel caffeic acid uorescence detection method based on molecularly imprinted polymers (CDs@MIPs) coated with silane functional carbon dots was Fig. 1 The structure of caffeic acid.…”

Section: Introductionmentioning

confidence: 99%

“…proposed by Xu et al 28 Although CD has excellent photoluminescence performance and high biocompatibility, the selectivity of a single carbon dot to the target compound is low, and it needs to be used in combination with other substances, so the synthesis and assembly process is tedious and difficult. Moreover, expensive instruments are needed to characterize the carbon dots.…”

Section: Introductionmentioning

confidence: 99%

A water-soluble boronic acid sensor for caffeic acid based on double sites recognition

et al. 2020

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“…Caffeic acid (3,4-dihydroxycinnamic acid) is an important compound in the classification of phenolic acids, which exists in certain vegetables (e.g., cabbage, cauliflower, and kale) and fruits (e.g., strawberries, grapes, and apples). It serves as an antioxidant, anti-inflammatory, antibacterial, and immune-modulating agent [1,2,3,4]. The molecular structure of CA is comprised of two hydroxyl groups adjacent to an aromatic ring, which provocatively contributes to its distinctive antioxidative nature [5,6].…”

Section: Introductionmentioning

confidence: 99%

Sensitive Electrochemical Detection of Caffeic Acid in Wine Based on Fluorine-Doped Graphene Oxide

Manikandan

Boopathi

Thiruppathi

et al. 2019

Sensors

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We report here a novel electrochemical sensor developed using fluorine-doped graphene oxide (F-GO) for the detection of caffeic acid (CA). The synthesized graphene oxide (GO) and F-GO nanomaterials were systematically characterized with a scanning electron microscope (SEM), and the presence of semi-ionic bonds was confirmed in the F-GO using X-ray photoelectron spectroscopy. The electrochemical behaviours of bare glassy carbon electrode (GCE), F-GO/GCE, and GO/GCE toward the oxidation of CA were studied using cyclic voltammetry (CV), and the results obtained from the CV investigation revealed that F-GO/GCE exhibited the highest electrochemically active surface area and electrocatalytic activity in contrast to the other electrodes. Differential pulse voltammetry (DPV) was employed for the analytical quantitation of CA, and the F-GO/GCE produced a stable oxidation signal over the selected CA concentration range (0.5 to 100.0 μM) with a low limit of detection of 0.018 μM. Furthermore, the acquired results from the selectivity studies revealed a strong anti-interference capability of the F-GO/GCE in the presence of other hydroxycinnamic acids and ascorbic acid. Moreover, the F-GO/GCE offered a good sensitivity, long-term stability, and an excellent reproducibility. The practical application of the electrochemical F-GO sensor was verified using various brands of commercially available wine. The developed electrochemical sensor successfully displayed its ability to directly detect CA in wine samples without pretreatment, making it a promising candidate for food and beverage quality control.

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Carbon dots coated with molecularly imprinted polymers: A facile bioprobe for fluorescent determination of caffeic acid

Cited by 70 publications

References 32 publications

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

A water-soluble boronic acid sensor for caffeic acid based on double sites recognition

Sensitive Electrochemical Detection of Caffeic Acid in Wine Based on Fluorine-Doped Graphene Oxide

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