Facile synthesis of novel CuO/Cu2O nanosheets on copper foil for high sensitive nonenzymatic glucose biosensor

Lv, Jian; Kong, Chuncai; Xu, Yun; Yang, Zhimao; Zhang, Xiaojing; Yang, Shengchun; Meng, Guangyao; Bi, Jinglei; Li, Jianhui; Yang, Sen

doi:10.1016/j.snb.2017.04.052

Cited by 119 publications

(56 citation statements)

References 38 publications

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“…It can be seen that for lower glucose concentrations current density grows linearly with slope of 93 μA cm −2 mM −1 and detection limit of 30 μM and further on reaches its maximum at 0.5 mM and stays constant. This plateau is in accordance with Michaelis‐Menten kinetics typical for the enzymatic reactions and is connected to the saturation of active sites on a surface. Furthermore, also semilogarithmic calibration curve was constructed, in order to estimate the sensitivity within the broad concentration range.…”

Section: Resultsmentioning

confidence: 99%

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

et al. 2019

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The detection of glucose at low concentrations using electrochemical sensors is of great importance due to the possibility of using different human body fluids than blood, such as e. g. urine, saliva, sweat or tears. The interest behind those biofluids is related to their utility in non‐invasive sugar determination. In this work, we present flexible, fully biocompatible electrode material based on Au nanoparticles immobilized onto titanium dimples. Au−Ti heterostructures were obtained via electrochemical anodization of titanium foil in presence of fluoride anions followed by chemical etching, magnetron sputtering of gold and subsequent thermal dewetting in continuous regime. In the last step of fabrication, electrodes were modified by permselective Nafion membrane. The selection of the best electrode material among different configurations was carried out basing on the electrochemical activity in the contact with 5 mM glucose dissolved in neutral air‐saturated 0.1 M PBS. For the 10 nm Au dewetted gold film, limit of detection of 30 μM and high sensitivity of 93 mA cm−2 mM−1 were achieved. Application of Nafion membrane caused complete inhibition of the impact of various interference species onto the glucose detection. Good selectivity and repeatability combined with the resistance to prolonged mechanical stress suggest that prepared material can be used in non‐invasive glucose sensing.

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Section: Resultsmentioning

confidence: 99%

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

et al. 2019

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“…The shift in the PP oxidation potential to lower potentials using the Printex carbon L6 compared to literature shows excellent electrocatalytic activity of this material. The presence of CuO nanoparticles with incomplete d-orbitals has created new active sites for electron transfer across electrolyte/electrode surface [18]. The electrodeposition of CuO/Cu 2 O nanoparticles in the CPL6 film increased the analytical signal besides contributing towards narrowing the oxidation peak, which improves the selectivity of the method ( Figure 4B (c)).…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

“…The electrodeposition of CuO/Cu 2 O nanoparticles in the CPL6 film increased the analytical signal besides contributing towards narrowing the oxidation peak, which improves the selectivity of the method (Figure 4B (c)). The presence of CuO nanoparticles with incomplete d-orbitals has created new active sites for electron transfer across electrolyte/electrode surface [18]. The electrochemical behavior of copper oxide based sensors also can be attributed to the electrical properties of CuO and Cu 2 O.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

“…Metal oxide nanomaterials can offer good electrochemical activity, low cost and simplicity when it comes to the development of new sensing materials [17]. Moreover, the electronic configuration of metal oxides containing incomplete d-orbitals and unpaired d-electrons results in greater electrocatalytic performance [18]. Copper (II) oxide (CuO) displays suitable catalytic activity in a wide pH range [19], chemical stability and adsorption properties favourable for the development of new sensing materials [20,21].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu₂O Nanoparticles for Propylparaben Determination

2018

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The paper reports the development of a new sensor based on Printex L6 (CPL6) carbon black modified with copper oxides (CuO/Cu2O) nanoparticles and its application towards the determination of Propylparaben (PP). In fact, it is the first report of its kind in the literature. The sensor was produced through the dispersion of CPL6 in dimethylformamide on glassy carbon electrode surface followed by CuO/Cu2O electrodeposition. The conditions of electrodeposition investigated included time and solution concentration of Cu (II). Morphological, structural and electrochemical characterizations of the sensor were performed. Under optimal conditions, wide linear range (1.0 to 35.0 μmol L−1) was obtained in the detection of PP. The detection limit obtained was 0.46 μmol L−1 (S/N=3). The CuO/Cu2O‐CPL6/GCE sensor was found to be as sensitive as the high performance liquid chromatography in the determination of PP in both cosmetic and river water samples, in addition to being reproducible and stable.

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“…These modified electro-catalyst also experience certain drawback during development such as the addition of supporting material block many active sites on catalyst, resulting small number of active sites involve in electro-catalysis. So transition metal based electrochemical sensors, like Ni, Fe, Cu, Co, and Mn based nanomaterials, have attracted the interest of researchers in recent years [27]. Composites of metals with other metals, with polymers and carbon based materials have often resulted in superior performance of the sensing material because each part of the composite plays its role in sensing [28].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of Ascorbic Acid, Hydrogen Peroxide and Glucose by Bimetallic (Fe, Ni)−CNTs Composite Modified Electrode

et al. 2019

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In this research, bimetallic supported CNT modified electrode (Fe,Ni/CNTs/GCE) has been developed for sensitive, stable and highly elctroactive sensing of glucose, ascorbic acid and hydrogen peroxide. Transition metals such as Iron (Fe) and Nickel (Ni) offer high electrical and thermal conductance, high active surface‐to‐volume ratio and presence of d‐band electrons gives enhanced electrocatalytic behavior. While, CNTs provide high surface area, stability and excellent conductivity. Synthesized material is characterized by SEM, EDS, XRD and FTIR to access morphology, elemental composition and structure. This unique combination is employed for the electrochemical sensing of ascorbic acid, glucose and hydrogen peroxide and different experimental parameters are optimized. Fe,Ni/CNTs/GCE shows good sensing efficiency at pH 7.4 which is ideally suitable for variety of analytes. The modified electrode also show good reproducibility and sensitivity under optimized conditions and can be reused upto 30 cycles without compromising the efficiency. With good linearity, reproducibility and limit of detection, this material possess significant potential as non‐enzymatic biosensor for variety of analytes.

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Facile synthesis of novel CuO/Cu2O nanosheets on copper foil for high sensitive nonenzymatic glucose biosensor

Cited by 119 publications

References 38 publications

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu₂O Nanoparticles for Propylparaben Determination

Electrochemical Sensing of Ascorbic Acid, Hydrogen Peroxide and Glucose by Bimetallic (Fe, Ni)−CNTs Composite Modified Electrode

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Facile synthesis of novel CuO/Cu2O nanosheets on copper foil for high sensitive nonenzymatic glucose biosensor

Cited by 119 publications

References 38 publications

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu2O Nanoparticles for Propylparaben Determination

Electrochemical Sensing of Ascorbic Acid, Hydrogen Peroxide and Glucose by Bimetallic (Fe, Ni)−CNTs Composite Modified Electrode

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A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu₂O Nanoparticles for Propylparaben Determination