Electrochemical synthesis of nitrogen-doped carbon quantum dots decorated copper oxide for the sensitive and selective detection of non-steroidal anti-inflammatory drug in berries

Ganesan, Muthusankar; Sasikumar, Ragu; Chen, Shen‐Ming; Gopalakrishnan, Gayathri; Sengottuvelan, Nallathambi; Rwei, Syang‐Peng

doi:10.1016/j.jcis.2018.03.095

Cited by 64 publications

(24 citation statements)

References 42 publications

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“…No Cu 2 O peaks were observed in XRD patterns. However, it does decrease the intensity of the peaks similar to previously published report[24,25]. It is observed from Fig.2cthat the introduction of nickel precursor in the copper oleate precursor during the synthesis decreased the XRD peak intensity of the resulting film.…”

supporting

confidence: 88%

Enhanced electrochemical glucose sensing performance of CuO:NiO mixed oxides thin film by plasma assisted nitrogen doping

Palmer

Masikini

Jiang

et al. 2021

Journal of Alloys and Compounds

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In this study plasma-assisted nitrogen doping of a CuOeNiO mixed oxide thin film was presented. The as prepared film was also applied as a glucose sensor. The nitrogen species generated during plasma ignition resulted in a beneficial phase transformation of CuO to Cu 2 O. Characterisation techniques such as XRD, SEM, EIS and Hall Effect etc. measurements were utilized to study the morphology, structural features, doping profile and electrical properties of the sensing material. Device performance electrochemical testing showed that the as-developed sensor (labelled as NeCuO/Cu 2 O:NiO) showed an ultrafast response time of 2.5 s with high sensitivity (1131 mA/mM.cm 2 ). The linear range of the sensor was calculated to be up to 2.74 mM of glucose and excellent selectivity towards glucose at an applied potential of þ0.67 V vs Ag/AgCl in 0.1 M NaOH electrolyte solution. The limit of detection was calculated to be 20 mM for the NeCuO/Cu 2 O:NiO sensor. The NeCuO/Cu 2 O:NiO have smaller Tafel slope compared to pristine CuO and CuO:NiO mixed oxides. Enhanced electrochemical performance of the NeCuO/Cu 2 O:-NiO originates from the improved electronic properties of the thin film.

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supporting

confidence: 88%

Enhanced electrochemical glucose sensing performance of CuO:NiO mixed oxides thin film by plasma assisted nitrogen doping

Palmer

Masikini

Jiang

et al. 2021

Journal of Alloys and Compounds

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“…Compared with other reports, this study has great breakthroughs on the mechanism of fluorescent QY and illuminant color. Muthusankar et al synthesized the N-CQDs and N-CQDs/Cu 2 O composite by electrochemical deposition and applied for sensitive and selective detection of non-steroidal anti-inflammatory drug aspirin (ASA) in berries [54] (Figure 2b). In this study, the size-controllable CQDs improves the stability of Cu 2 O and the electron transfer rate without affecting its crystallinity.…”

Section: Top-down Approachmentioning

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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“…[180][181][182][183] Muthusankar et al constructed a N-CQD/Cu2O nanocomposite electrode through the electrodeposition of N-CQDs on the surface of GCE and decoration with Cu2O microstructures for the sensing of aspirin with a LOD of 2 µM. 180 Su et al applied for example NH2-modified CQDs for the immobilization of horseradish peroxidase (HRP) and the detection of hydrogen peroxide between 5 -590 nM with a detection limit of ( Figure 13C). 182 Zhang used ther high peroxidase-like property of carboxylic acid group enriched GQDs for enzyme free hydrogen peroxide sensing.…”

Section: Chemical Sensorsmentioning

confidence: 99%

Carbon-based quantum particles: an electroanalytical and biomedical perspective

et al. 2019

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Electrochemical synthesis of nitrogen-doped carbon quantum dots decorated copper oxide for the sensitive and selective detection of non-steroidal anti-inflammatory drug in berries

Cited by 64 publications

References 42 publications

Enhanced electrochemical glucose sensing performance of CuO:NiO mixed oxides thin film by plasma assisted nitrogen doping

Enhanced electrochemical glucose sensing performance of CuO:NiO mixed oxides thin film by plasma assisted nitrogen doping

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

Carbon-based quantum particles: an electroanalytical and biomedical perspective

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