One step copper oxide (CuO) thin film deposition for non-enzymatic electrochemical glucose detection

Inyang, Adijat Omowumi; Kibambo, Gloria; Palmer, Maghmood; Cummings, Franscious; Masikini, Milua; Sunday, Christopher E.; Chowdhury, Mahabubur

doi:10.1016/j.tsf.2020.138244

Cited by 25 publications

(10 citation statements)

References 66 publications

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“…The suggested glucose sensor‘s sensing performance is compared to that of previously reported non‐enzymatic glucose sensors made with CuO as a modifier in Table 2 [41,44,46–51] . As seen, the LOD and linear range of the proposed sensor is better than most of the others.…”

Section: Resultsmentioning

confidence: 90%

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Mashhadizadeh

Abdollahi

2023

ChemistrySelect

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Among various enzyme-free sensors, transition metals and their oxides have been used as suitable modifiers for the design of glucose electrochemical sensors due to their availability and low cost. In the present study, a flexible, enzyme-less, nonwoven fabric-based glucose sensor was developed. We synthesized the Fe-doped CuO (Fe/CuO) chemically and used it as a modifier to the carbon paste to achieve this. A working electrode was created by stabilizing the paste on a nonwoven fabric. The fabric used did not require any pre-preparation except cleaning. The synthesized Fe/CuO was characterized using scanning electron microscopy (SEM), energy-dispersive Xray spectroscopy (EDX), electrochemical impedance spectro-scopy (EIS), diffuse reflectance spectroscopy (DRS), and X-ray diffraction (XRD). The electrochemical properties of the Fe/CuO nanocomposite on the textile electrode were investigated using cyclic voltammetry, amperometry, and electrochemical impedance spectroscopy. In the proposed enzyme-free sensor, Fe/CuO catalyzed the oxidation of glucose on the electrode surface. The sensor has high sensitivity, a wide linear range (2.5 × 10 À 3 -6.57 mM), a low detection limit (8.0 × 10 À 4 mM), long-term stability, and good selectivity. Finally, the sensor was used to determine the amount of glucose in a human sweat sample.

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Section: Resultsmentioning

confidence: 90%

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Mashhadizadeh

Abdollahi

2023

ChemistrySelect

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“…This synthetic approach has been adopted previously by Chowdhury group for the fabrication of CuO‐based electrochemical glucose sensors. [ 17 ] However, the co‐existence of the Cu 2 O and CuO mixed phases was not reported in their work. In a recent study, Palmer and co‐authors [ 18 ] developed CuO:NiO thin film by SC‐MOC and then converted it partially to Cu 2 O/CuO:NiO using high vacuum plasma‐assisted nitrogen doping for enhanced electrochemical properties of the film toward glucose detection.…”

Section: Introductionmentioning

confidence: 91%

Two Electron Transfer Mediated Enhanced Electrochemical Nitrate Detection by Sn‐Doped Cu_xo Thin Film Electrode

Ndala

Kibambo

Mkhari

et al. 2023

Advanced Sensor Research

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The unique electrochemical and electronic properties of CuxO (Cu2O/CuO) give it merit to be used in the development of electronic devices. This paper presents the facile chemical route for the development of a sensitive, accurate, and low‐cost nitrate electrochemical sensor based on undoped and Sn‐doped CuxO thin film electrodes. Various characterization techniques are used to study the physical, electro‐chemical, and electronic properties of the material. Sn‐doping resulted in an increase in the number of electron transfers from 1 to 2 as compared to undoped CuxO. The prepared sensor exhibited a high sensitivity of 100.3 µA mm−1 cm−2, a wide linear concentration range of up to 50.0 mm, a fast response time of <5.0 s is observed at a potential of −1.0 V (vs Ag/AgCl), and a very low limit of detection of 0.1 µm (S/N = 3.0) that outperformed those in the recent literature. The electrode is selective for nitrate in the presence of common interference species and exhibited chemical stability and reproducibility.

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“…species for the process to proceed [35,37]. The reactions associated with Cu(II)/Cu(III) redox pair are summarized in Equations 4-6 and glucose is oxidized as per Equation (7) to form gluconic acid after hydrolysis of gluconolactone:…”

Section: Photoelectrochemical Behaviormentioning

confidence: 99%

Electrodeposited CuO thin film for wide linear range photoelectrochemical glucose sensing

Cory

Visser

Chamier

et al. 2022

Applied Surface Science

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One step copper oxide (CuO) thin film deposition for non-enzymatic electrochemical glucose detection

Cited by 25 publications

References 66 publications

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Two Electron Transfer Mediated Enhanced Electrochemical Nitrate Detection by Sn‐Doped Cu_xo Thin Film Electrode

Electrodeposited CuO thin film for wide linear range photoelectrochemical glucose sensing

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One step copper oxide (CuO) thin film deposition for non-enzymatic electrochemical glucose detection

Cited by 25 publications

References 66 publications

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Design of a Flexible Enzyme‐less Glucose Sensor Based on Non‐woven Fabric and Fe‐Doped CuO Nanocomposite

Two Electron Transfer Mediated Enhanced Electrochemical Nitrate Detection by Sn‐Doped Cuxo Thin Film Electrode

Electrodeposited CuO thin film for wide linear range photoelectrochemical glucose sensing

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Two Electron Transfer Mediated Enhanced Electrochemical Nitrate Detection by Sn‐Doped Cu_xo Thin Film Electrode