Review on Carbon Dots and Their Applications

Tuerhong, Mhetaer; Xu, Yang; Yin, Xue‐Bo

doi:10.1016/s1872-2040(16)60990-8

Cited by 360 publications

(188 citation statements)

References 109 publications

Supporting

Mentioning

178

Contrasting

Unclassified

Order By: Relevance

“…Researchers have focused on employing carbon-based nanostructures-such as carbon nanotube (CNT), graphene or graphene oxide (GO)-as supporting materials, with the aim to modify working electrodes, improve sensitivity of the electrode, enhance the surface area, and transfer charge to the nanozyme. Carbon nanodots (C-dots), thus, are a newly emerging class of carbon materials that consist of carbon nanoparticles with diameter less than 10 nm and several hydrophilic surface groups exhibiting excellent water dispersibility, high surface area, and chemical stability [40][41][42]. In addition, a screen-printed carbon electrode (SPCE) has been conveniently used for glucose detection owing to advantages such as flexible design and scope for modification.…”

Section: Introductionmentioning

confidence: 99%

Non-Enzymatic Amperometric Glucose Sensor Based on Carbon Nanodots and Copper Oxide Nanocomposites Electrode

Sridara

Upan

Saianand

et al. 2020

Sensors

View full text Add to dashboard Cite

In this research work, a non-enzymatic amperometric sensor for the determination of glucose was designed based on carbon nanodots (C-dots) and copper oxide (CuO) nanocomposites (CuO-C-dots). The CuO-C-dots nanocomposites were modified on the surface of a screen-printed carbon electrode (SPCE) to increase the sensitivity and selectivity of the glucose sensor. The as-synthesized materials were further analyzed for physico-chemical properties through characterization tools such as transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR); and their electrochemical performance was also studied. The SPCE modified with CuO-C-dots possess desirable electrocatalytic properties for glucose oxidation in alkaline solutions. Moreover, the proposed sensing platform exhibited a linear range of 0.5 to 2 and 2 to 5 mM for glucose detection with high sensitivity (110 and 63.3 µA mM−1cm−2), and good selectivity and stability; and could potentially serve as an effective alternative method of glucose detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Non-Enzymatic Amperometric Glucose Sensor Based on Carbon Nanodots and Copper Oxide Nanocomposites Electrode

Sridara

Upan

Saianand

et al. 2020

Sensors

View full text Add to dashboard Cite

show abstract

“…Fluorescent carbon dots (CDs) have drawn considerable attention in a wide range of applications ranging from the biomedical [1][2][3][4][5] to energy-related [6,7] fields. Among them, CDs appeared to be a promising luminescent bio-based nanomaterial for photocatalytic applications.…”

Section: Introductionmentioning

confidence: 99%

Precursor-Dependent Photocatalytic Activity of Carbon Dots

et al. 2019

View full text Add to dashboard Cite

This work systematically compares both structural features and photocatalytic performance of a series of graphitic and amorphous carbon dots (CDs) prepared in a bottom-up manner from fructose, glucose, and citric acid. We demonstrate that the carbon source and synthetic procedures diversely affect the structural and optical properties of the CDs, which in turn unpredictably influence their photo electron transfer ability. The latter was evaluated by studying the photo-reduction of methyl viologen. Overall, citric acid-CDs were found to provide the best photocatalytic performance followed by fructose- and glucose-CDs. However, while the graphitization of glucose- and citric acid-CDs favored the photo-reaction, a reverse structure–activity dependence was observed for fructose-CDs due to the formation of a large graphitic-like supramolecular assembly. This study highlights the complexity to design in advance photo-active bio-based carbon nanomaterials.

show abstract

“…The CDs are becoming an alternative to the use of quantum dots (QDs), since the QDs are synthesized from metals and the CDs from a carbon source, thus being biocompatible, exhibiting good conductivity, high chemical stability, low toxicity, strong emission photoluminescence, easy and low cost synthesis, and a contribution to greener chemistry. 16,17 Owing to their properties, the carbon dots have been used as fluorescent sensors for detection of many species such as glucose, 18 microRNAs, 19 iron ions and pH, 20 dopamine, 21 ascorbic acid, 22 Cu 2+ , 23 Al 3+ , 24 and D-penicillamine. 25 In the process of carbon dots synthesis, it is possible to perform doping or surface passivation which can significantly improve their properties.…”

Section: Introductionmentioning

confidence: 99%

Use of Carbon Dots Synthesized from Citrate as a Fluorescent Probe for Quercetin Determination in Tea and Beer Samples

Paula¹,

Milani²,

Lavorante³

et al. 2019

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

In this work, carbon dots (CDs) prepared by a one-step hydrothermal method were employed for the determination of quercetin in teas and beers. The fluorescence quenching of CDs was proportional to the concentration of quercetin. Under optimum experimental conditions, linear quenching was observed for quercetin in the range of 1.0 to 10 mg L-1 (F/F 0 = (0.1511 ± 0.0075)[Q] + (0.8922 ± 0.0384), R 2 = 0.9926), at room temperature, using 80 μL CDs and 0.1 mol L-1 Na 2 HPO 4 /NaOH buffer solution (pH 11.0). A limit of detection (3σ criterion) of 0.85 mg L-1 , and a relative standard deviation of 0.21% (n = 3) for 4.0 mg L-1 quercetin solution was obtained. Addition and recovery tests with tea and beer samples were performed resulting in recoveries at the range between 80 and 118%. This procedure served successfully to determine quercetin in beer and tea samples presenting high sample throughput.

show abstract

Review on Carbon Dots and Their Applications

Cited by 360 publications

References 109 publications

Non-Enzymatic Amperometric Glucose Sensor Based on Carbon Nanodots and Copper Oxide Nanocomposites Electrode

Non-Enzymatic Amperometric Glucose Sensor Based on Carbon Nanodots and Copper Oxide Nanocomposites Electrode

Precursor-Dependent Photocatalytic Activity of Carbon Dots

Use of Carbon Dots Synthesized from Citrate as a Fluorescent Probe for Quercetin Determination in Tea and Beer Samples

Contact Info

Product

Resources

About