A carbon dots-based fluorescent probe for turn-on sensing of ampicillin

Fu, Yanzhao; Zhao, Shaojing; Wu, Shuilin; Huang, Li; Xu, Ting; Xing, Xuejian; Lan, Minhuan; Song, Xiangzhi

doi:10.1016/j.dyepig.2019.107846

Cited by 85 publications

(30 citation statements)

References 38 publications

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“…In contrast, as a new type of fluorescence chromophore, fluorescence carbon dots (CDs) [12–15] with many properties such as favorable water solubility, good selectivity, high sensitivity, stable photostability, low toxicity, good biocompatibility and facile preparation have been widely used in analytical fields [16] . However, for the detection of Pd 2+ and Fe 3+ most precursors of the previously reports used to toxic chemicals [17–21] . So it is necessary to choose green CDs synthesized by natural biomass materials based fluorescent probe to detect Pd 2+ and Fe 3+ .…”

Section: Introductionmentioning

confidence: 99%

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Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺

et al. 2021

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A facile and rapid fluorescent sensing system for palladium ion (Pd2+) and iron ion (Fe3+) has been established based on carbon dots (CDs) using fresh Momordica charantia as the sole precursor via a one‐step hydrothermal treatment. The added Pd2+ and Fe3+ lead to the fluorescence quenching of CDs due to the static quenching effect (SQE). Such fluorescence response can be quenched by Pd2+ and Fe3+ in the linear ranges of 0–325 μM and 0–150 μM. Meanwhile, this sensing system exhibits good selectivity and sensitivity toward Pd2+ and Fe3+ over other analytes with low detection limits of 0.348 μM and 0.175 μM, respectively. Furthermore, the proposed sensing system has been successfully used for Pd2+ and Fe3+ in tap and environmental water and the recoveries range from 96.25 % to 107.3 %. The results mentioned above demonstrate its great promise as a practical platform for Pd2+ and Fe3+ sensing in aqueous media.

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Section: Introductionmentioning

confidence: 99%

“…[16] However, for the detection of Pd 2 + and Fe 3 + most precursors of the previously reports used to toxic chemicals. [17][18][19][20][21] So it is necessary to choose green CDs synthesized by natural biomass materials based fluorescent probe to detect Pd 2 + and Fe 3 + .…”

Section: Introductionmentioning

confidence: 99%

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺

et al. 2021

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“…This MMIP-CQDs@VPA fluorescent sensor was further applied for the detection of triazophos in cucumbers with a lower LOD of 0.0015 mmol L −1 , which was proved to possess high accuracy, good sensitivity and repeatability. Fu et al have constructed one fluorescent sensor based the composite of CQDs and Fe 3+ which has good response to ampicillin in mineral water, milk and pork samples with a LOD of 0.7 µmol L −1 [113]. This merit of the research benefits by the binding sites provided by the surface functional groups of CQDs for the metal ion Fe 3+ and this sensor offers more feasible and promising method in the simultaneous detection of multiple targets.…”

Section: Pesticide and Veterinary Drug Residuesmentioning

confidence: 99%

Fluorescent Carbon Quantum Dots—Synthesis, Functionalization and Sensing Application in Food Analysis

et al. 2020

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Carbon quantum dots (CQDs) with stable physicochemical properties are one of the emerging carbon nanomaterials that have been studied in recent years. In addition to the excellent optical properties such as photoluminescence, photobleaching resistance and light stability, this material also has favorable advantages of good biocompatibility and easy functionalization, which make it an ideal raw material for constructing sensing equipment. In addition, CQDs can combined with other kinds of materials to form the nanostructured composites with unique properties, which provides new insights and ideas for the research of many fields. In the field of food analysis, emerging CQDs have been deeply studied in food composition analysis, detection and monitoring trace harmful substances and made remarkable research progress. This article introduces and compares the various methods for CQDs preparation and reviews its related sensing applications as a new material in food components analysis and food safety inspection in recent years. It is expected to provide a significant guidance for the further study of CQDs in the field of food analysis and detection.

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“…Nevertheless, most of these studies are focused on N-doping from the most popular amine precursors and, consequently, investigate the carbon-nitrogen bond in the form of pyrrolic, pyridinic and graphitic nitrogen inside the carbon network. The nitrogen-nitrogen bond is not generally considered, and a few papers about this possible bonding are reported in the literature concerning the use of hydrazines as a CD precursor or, due to their high reduction power, for modifying the bonding type of N-atoms in formed CDs which enhance their QY [39][40][41][42][43][44]. Indeed, the simplest organic compounds that present this kind of bond are represented by hydrazines, which are largely used in pharmaceutical and agrochemical industries [45,46].…”

Section: Introductionmentioning

confidence: 99%

“…Inspired by these previous works [39][40][41][42][43][44] and by the results on the citric acid plus amines reaction [27], we decided to study the possible formation of heterocyclic N-Ncontaining compounds as possible molecular seeds for the formation of CDs. For these reasons, a combined experimental and computational approach was adopted to investigate the optical features of hydrothermally produced citric acid and hydrazine-related CDs, showing that the formation of pyridinone structures could explain the excitation-dependent emission properties.…”

Section: Introductionmentioning

confidence: 99%

Towards N–N-Doped Carbon Dots: A Combined Computational and Experimental Investigation

et al. 2022

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The introduction of N doping atoms in the carbon network of Carbon Dots is known to increase their quantum yield and broaden the emission spectrum, depending on the kind of N bonding introduced. N doping is usually achieved by exploiting amine molecules in the synthesis. In this work, we studied the possibility of introducing a N–N bonding in the carbon network by means of hydrothermal synthesis of citric acid and hydrazine molecules, including hydrated hydrazine, di-methylhydrazine and phenylhydrazine. The experimental optical features show the typical fingerprints of Carbon Dots formation, such as nanometric size, excitation dependent emission, non-single exponential decay of photoluminescence and G and D vibrational bands in the Raman spectra. To explain the reported data, we performed a detailed computational investigation of the possible products of the synthesis, comparing the simulated absorbance spectra with the experimental optical excitation pattern. The computed Raman spectra corroborate the hypothesis of the formation of pyridinone derivatives, among which the formation of small polymeric chains allowed the broad excitation spectra to be experimentally observed.

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A carbon dots-based fluorescent probe for turn-on sensing of ampicillin

Cited by 85 publications

References 38 publications

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺

Fluorescent Carbon Quantum Dots—Synthesis, Functionalization and Sensing Application in Food Analysis

Towards N–N-Doped Carbon Dots: A Combined Computational and Experimental Investigation

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A carbon dots-based fluorescent probe for turn-on sensing of ampicillin

Cited by 85 publications

References 38 publications

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd2+ and Fe3+

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd2+ and Fe3+

Fluorescent Carbon Quantum Dots—Synthesis, Functionalization and Sensing Application in Food Analysis

Towards N–N-Doped Carbon Dots: A Combined Computational and Experimental Investigation

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Product

Resources

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Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺

Green Synthesized Fluorescent Carbon Dots from Momordica charantia for Selective and Sensitive Detection of Pd²⁺ and Fe³⁺