A facile green and one-pot synthesis of grape seed-derived carbon quantum dots as a fluorescence probe for Cu(<scp>ii</scp>) and ascorbic acid

Li, Jiawei; Xu, Ouwen; Zhu, Xiashi

doi:10.1039/d1ra05656e

Cited by 15 publications

(4 citation statements)

References 36 publications

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“…However, long-term excess ascorbic acid can cause diarrhea, nausea, stomach cramps and other symptoms. Using grape seeds and thiourea as starting materials, Zhu Xiashi et al prepared an on-off-on fluorescence probe (N, S-CDs) to simultaneously detect Cu 2+ and ascorbic acid [67]. The surface of N, S-CDs was rich in nitrogen and sulfur functional groups according to the results of FTIR and XPS.…”

Section: Organic Compound Sensorsmentioning

confidence: 99%

Biomass-Derived Carbon Dots and Their Sensing Applications

Fan

Kang

et al. 2022

Nanomaterials

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Carbon dots (CDs) can be widely used in the field of sensing because of its good water solubility, low toxicity, high fluorescence stability and excellent biocompatibility. It has become a popular trend to prepare high-value, inexpensive, renewable and environmentally friendly CDs sensors from biomass resources. This article reviewed the research progress of biomass-derived CDs as chemical, physical and biological sensors in recent years and studied their preparation processes and sensing abilities. Furthermore, the prospects and challenges of biomass-CDs sensors were discussed. This article is expected to provide inspirations for the design, preparation and application of biomass-CDs sensors in the future.

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Section: Organic Compound Sensorsmentioning

confidence: 99%

Biomass-Derived Carbon Dots and Their Sensing Applications

Fan

Kang

et al. 2022

Nanomaterials

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“…Over the last few decades, some methods and strategies for monitoring pH, which include titration, electrochemistry, absorbance spectroscopy, etc., [ 13–21 ] have been reported. Among these methods, fluorescent probes have become highly promising as detection methods in biological research and clinical diagnosis due to their various advantages such as high fluorescence response, simple operation, superior sensitivity, and selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…[6,7] Different diseases such as cancer, Alzheimer's disease, and metabolic diseases are frequently related to abnormal pH values; [8][9][10] therefore, detecting intracellular pH is essential to understanding the effect of H + on biological systems. [11,12] Over the last few decades, some methods and strategies for monitoring pH, which include titration, electrochemistry, absorbance spectroscopy, etc., [13][14][15][16][17][18][19][20][21] have been reported. Among these methods, fluorescent probes have become highly promising as detection methods in biological research and clinical diagnosis due to their various advantages such as high fluorescence response, simple operation, superior sensitivity, and selectivity.…”

Section: Introductionmentioning

confidence: 99%

A novel aggregation‐induced emission fluorescent probe with large Stokes shift for sensitive detection of pH changes in live cells

Zhang

Wang

et al. 2022

Luminescence

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The detection of intracellular pH is crucial for elucidating the pathological process of cancers, as well as for medical diagnostic applications. Here, we developed an aggregation-induced emission active pH-responsive fluorescent probe (TPE-DCP) for sensitively detecting cell pH changes. The probe shows obvious pH-sensing properties at $615 nm, with a pKa value of 6.82 and a good linear pH response ranging from 8.5 to 4.5. TPE-DCP holds advantages such as excellent anti-interference performance, good photostability, and low cytotoxicity, and has been successfully used to image intracellular pH changes in cells.

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“…This "on-off-on" type of sensor could be used to detect two or more components. At present, many reports were about the sequential detection of Cu 2+ / Fe 3+ and AA [27][28][29][30][31] .…”

Section: Introductionmentioning

confidence: 99%

The on–off-on Fluorescence Sensor of Hollow Carbon Dots for Detecting Hg2+ and Ascorbic Acid

Hao

Liu

et al. 2022

J Fluoresc

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Carbon dots (CDs) have excellent uorescence properties and can be used in many research elds. In this paper, carbon dots were prepared by microwave-assisted pyrolysis of citric acid and urea, characterized by transmission electron microscope (TEM), X-ray diffractometer (XRD), 13 C-NMR spectrum, zeta potential, Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible (UV-vis) absorption and uorescence spectra, and detected the Hg 2+ and ascorbic acid (AA) sequentially. It showed that carbon dots were hollow, spherical particles and less than 10 nm, photoluminescence quantum yield of carbon dots was about 15%. The CDs were selective and sensitive to Hg 2+ and AA based on the "on-off-on" uorescence behavior. The detection limits of CDs for Hg 2+ and AA were 0.138 µM and 0.212 µM, respectively. Fluorescence response mechanism of CDs was also discussed.

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A facile green and one-pot synthesis of grape seed-derived carbon quantum dots as a fluorescence probe for Cu(ii) and ascorbic acid

Abstract: In this study, an on–off–on fluorescence probe for the detection of trace Cu(ii) and ascorbic acid (AA) based on biomass-derived sulfur and nitrogen double heteroatom-doped carbon dots (N,S-CDs) was designed.

Cited by 15 publications

References 36 publications

Biomass-Derived Carbon Dots and Their Sensing Applications

Biomass-Derived Carbon Dots and Their Sensing Applications

A novel aggregation‐induced emission fluorescent probe with large Stokes shift for sensitive detection of pH changes in live cells

The on–off-on Fluorescence Sensor of Hollow Carbon Dots for Detecting Hg2+ and Ascorbic Acid

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