A highly sensitive non-enzymatic glucose sensor based on a simple two-step electrodeposition of cupric oxide (CuO) nanoparticles onto multi-walled carbon nanotube arrays

Yang, Jiang; Jiang, Liao-Chuan; Zhang, Wei-De; Gunasekaran, Sundaram

doi:10.1016/j.talanta.2010.03.047

Cited by 249 publications

(131 citation statements)

References 37 publications

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“…However, as shown from curve e in Fig. 2b, upon the addition of glucose, a single oxidative peak starting at about + 0.35 V with the oxidation peak at around +0.50 V, corresponding to the irreversible oxidation of glucose which is quite similar to Yang's report [11,12], is observed at the Cu NPs/graphene electrode. This suggests that Cu nanoparticles played a major role in the oxidation of glucose with its catalytic activity against glucose.…”

Section: Resultssupporting

confidence: 80%

“…Recently, there is a great amount of interest on copper and copper oxide nanomaterials for the non-enzymatic detection of glucose [10][11][12]. For instance, Kang fabricated a Cu-carbon nanotubes composite sensor by electrochemically depositing copper nanoclusters on a multiwall carbon nanotube modified glass carbon electrode [10].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Kang fabricated a Cu-carbon nanotubes composite sensor by electrochemically depositing copper nanoclusters on a multiwall carbon nanotube modified glass carbon electrode [10]. Zhang also reported Cu nanocubes and Cu 2 O nanoparticles modified CNTs via electrodeposition and sputtering deposition to create nonenzymatic glucose biosensor [11,12]. High sensitive and fast amperometric detection of glucose with low detection limit was achieved by using the above mentioned copper or copper oxide/CNTs nanomaterials due to the increased electrocatalytical area and promoted electron transfer for the reaction of the glucose oxidation.…”

Section: Introductionmentioning

confidence: 99%

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Facile one-step electrochemical fabrication of a non-enzymatic glucose-selective glassy carbon electrode modified with copper nanoparticles and graphene

et al. 2012

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We have developed a non-enzymatic glucose sensor by using a composite prepared from copper nanoparticles (CuNPs) and graphene which can be prepared by simple 1-step electrochemical reduction using graphene oxide (GO) and copper ion as the starting materials. The GO is electrochemically reduced to graphene at a voltage of −1.5 V, and this is accompanied by the simultaneous formation of CuNPs on the surface of the graphene. This novel nanocomposite combines the advantages of graphene and of CuNPs and displays good electrocatalytic activity toward glucose in alkaline media. The performance of the respective glucose electrode was evaluated by amperometric experiments and revealed a fast response (<2 s), a low detection limit (200 nM), and high sensitivity (607 μA mM −1 ). The sensor also exhibits good reproducibility and very good specificity for glucose over ascorbic acid, dopamine, uric acid, fructose, lactose and sucrose.

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Section: Resultssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Facile one-step electrochemical fabrication of a non-enzymatic glucose-selective glassy carbon electrode modified with copper nanoparticles and graphene

et al. 2012

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“…[33][34][35] Prior to electrodeposition, the FTO substrates were tailored into square shape with dimensions of 2 cm×1.5 cm. Then, the electrodes were ultrasonically cleaned by sequential sonication in ethanol, acetone, and Millipore-Q water for 15 min each.…”

Section: Experimental Electrodeposition Of Cu/ftomentioning

confidence: 99%

Morphology‐controlled Electrodeposition of Copper Nanospheres onto FTO for Enhanced Photocatalytic Hydrogen Production

Feng

Wang

et al. 2017

Chin. J. Chem.

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Using CuSO 4 as the copper source, nanostructured copper with four different morphologies was obtained by electrodeposition method on FTO substrates. The as-synthesized Cu/FTO samples were characterized by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), Raman, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The effects of electrodeposition potential and electrodeposition time on the Cu/FTO samples and the photocatalytic performance were investigated systematically. The results showed that the Cu/FTO samples were well-crystallized and the morphologies could be changed from nanoslices to nanodendrites structure with the negative shift of the depositing potential. The electrodeposition potential and time have a significant effect on the amount of H 2 evolution. The obtained Cu nanospheres which were prepared at the potential of -0.65 V for 600 s showed the best photocatalytic behavior. The mechanisms for the photocatalytic activities were also discussed.

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“…During the cyclic potential scanning, all redox peak currents decreased, suggesting that CuO were formed during the CVs. The mechanism of oxidation in NaOH media is shown below: 22,23 Cu…”

Section: Preparation Of the Working Electrodementioning

confidence: 99%

Low Potential and Non-Enzymatic Hydrogen Peroxide Sensor Based on Copper Oxide Nanoparticle on Activated Pencil Graphite Electrode

Kamyabi¹,

Hajari²

2016

J. Braz. Chem. Soc.

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An electrochemical sensor for H 2 O 2 determination was prepared by electrodepositing copper oxide nanoparticles on the activated pencil graphite electrodes. At first, a study has been made of the optimum conditions for chemical activation of the pencil graphite electrodes (APGE) and then the activated pencil graphite electrode was modified with copper oxide nanoparticles (CuO/APGE) and used as a non-enzymatic hydrogen peroxide sensor. The morphology of the modified electrode surface was investigated by scanning electron microscopy (SEM). Upon the addition of H 2 O 2 , the modified electrode (CuO/APGE) exhibits significant oxidation of H 2 O 2 with starting potential around +0.05 V (vs. Ag/AgCl) which dramatically decreases the overpotential of H 2 O 2 oxidation. Under the optimal experiment conditions, the electrocatalytic response current of this sensor was proportional to the H 2 O 2 concentration in the range of 5.0 × 10 −6 to 1.6 × 10 −3 mol L -1 with a detection limit down to 0.21 µmol L -1 (signal/noise = 3). The sensitivity was calculated to be 4.75 µAL mmol -1 . The electrochemical active surface area and the catalytic rate constant of hydrogen peroxide electro-oxidation were calculated. The H 2 O 2 sensor exhibited a low detection limit, a good signal reproducibility (relative standard deviation (RSD), n = 4) 2.36% and the accurate measurements in milk as the real sample.

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A highly sensitive non-enzymatic glucose sensor based on a simple two-step electrodeposition of cupric oxide (CuO) nanoparticles onto multi-walled carbon nanotube arrays

Cited by 249 publications

References 37 publications

Facile one-step electrochemical fabrication of a non-enzymatic glucose-selective glassy carbon electrode modified with copper nanoparticles and graphene

Facile one-step electrochemical fabrication of a non-enzymatic glucose-selective glassy carbon electrode modified with copper nanoparticles and graphene

Morphology‐controlled Electrodeposition of Copper Nanospheres onto FTO for Enhanced Photocatalytic Hydrogen Production

Low Potential and Non-Enzymatic Hydrogen Peroxide Sensor Based on Copper Oxide Nanoparticle on Activated Pencil Graphite Electrode

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