Copper Nanowires-SWCNTs Hybrid Composite for Enhanced Glucose Electrooxidation and Detection in Alkaline Medium

Zhang, Yuchan; Su, Liang; Lubonja, Klair; Yu, Cong; Liu, Yixin; Huo, Danqun; Hou, Changjun; Yu, Lei

doi:10.1166/sam.2012.1351

Cited by 7 publications

(3 citation statements)

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“…Enzyme-free glucose sensors have been realized via the use of transition metals (Cu, Pt, Pd, Ni, etc.) along with their alloys in micro-/nanoforms as the electrode materials. − Amongst these materials, the use of nickel (Ni) and/or nickel oxide (NiO) is observed to be highly effective in catalyzing the glucose oxidation, leading to sensitive and affordable sensors . Use of NiO as an electrode material holds great promises primarily due to its low toxicity and natural abundances.…”

Section: Introductionmentioning

confidence: 99%

MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

Borade

Ali

Jahan

et al. 2021

ACS Appl. Nano Mater.

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In this research, we demonstrate a disposable carbon-based paper electrode with engineered surfaces that is capable of detecting glucose in an alkaline medium at concentrations down to 10 μM. The sensitive electrode is fabricated by introducing a hydrothermally synthesized nickel oxide (NiO) layer on a carbon paper electrode, followed by the growth of nanostructured molybdenum disulfide (MoS 2 ) by pulsed laser deposition on the NiO layer. The surface modification was investigated using transmission electron microscopy and micro-Raman spectroscopy. The electrocatalytic activity of the fabricated electrodes was investigated in presence of a low concentration (0.1 mM) of an alkaline solution of sodium hydroxide. The catalytic enhancement of a NiO−MoS 2 hybrid electrode is attributed to the edge sites and defects associated with MoS 2 nanostructures responsible for creating a highly reactive environment. This system dissociates a water molecule into OH − and H + species. H + continues to diffuse on the MoS 2 surface, simultaneously modifying it due to its quantum nature. On the addition of glucose molecules into the electrolyte, an oxidation reaction takes place at the surface of the electrode, realizing an enzyme-free glucose sensor. Simulations are carried out via a thin-film-based electrochemical sensor model to better understand the trends in the experimental results. These results indicate a new route to detect glucose at low concentrations and with high sensitivity.

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Section: Introductionmentioning

confidence: 99%

MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

Borade

Ali

Jahan

et al. 2021

ACS Appl. Nano Mater.

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“…Compared with NPs, nanowires (NWs) exhibit better electron communication ability and are less vulnerable to dissolution, Ostwald ripening, and aggregation during electrocatalytic process because of their smaller contact resistance and micrometer-sized length. [41][42][43][44] NWs can also provide very high electrochemical active areas for target molecules to be transferred onto. Recently, Yu's group reported a highly sensitive sensing platform for glucose based on Ni NWs arrays, 45 demonstrating Ni NWs are promising anodic materials in glucose sensors.…”

Section: Introductionmentioning

confidence: 99%

A nonenzymatic glucose sensing platform based on Ni nanowire modified electrode

2012

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Glucose detection is very important for the diagnosis and management of diabetes, and nonenzymatic glucose sensors have attracted considerable attention due to their excellent stability, high sensitivity, and so on. Herein, a sensitive, cost-effective nonenzymatic glucose sensor using ultralong Ni nanowire (NW) modified glassy carbon electrode is presented. The current-time curve shows that the catalytic oxidation current is linearly dependent on glucose concentration in the range from 1 mM to 5 mM with a correlation coefficient 0.994, and a sensitivity of 367 mA mM À1 cm À2 . The relative standard deviation is 3.7% for 8 successive measurements for 1 mM glucose. After 2-weeks storage in air at room temperature, the signal for 1 mM glucose maintains 97.2% of its initial value. What is more, the present Ni NW-based electrochemical sensing platform can successfully be used to detect glucose in human serum with satisfactory results.

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“…Recently, a great deal of attentions have been paid to onedimensional nanomaterials based on copper their oxides. [14][15][16][17][18][19][20][21] They possess numerous advantages such as extremely reduced size, large surface-to-volume ratio, high electrical conductivity, chemical stability and strong mechanical strength, which are potentially beneficial for fabrication of electronic sensors. [22][23][24] Meanwhile, carbon-based nanomaterials, especially CNTs, have also been widely used for the modification of electrodes to increase the surface roughness, porosity and electrical conductivity.…”

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confidence: 99%

A Non-Enzymatic Glucose Sensor based on Copper Oxide Nanowires-Single Wall Carbon Nanotubes

Bao

Hou

Zhang

et al. 2014

J. Electrochem. Soc.

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A hybrid electrocatalyst was synthesized with copper oxide nanowires (CuO NWs) and single-walled carbon nanotubes (SWCNTs) to detect glucose in alkaline environment. TEM, SEM and FTIR characterization demonstrated that CuO NWs and SWCNTs were excellently integrated in as-prepared catalyst with good morphologic appearance and structural properties. The biosensor realized an excellent sensitivity of 2191.3 μA cm −2 mM −1 for glucose in low concentration from 1 μM to 34 μM, and a fine overall sensitivity of 761.5 μA cm −2 mM −1 within a wide linear range from 1 μM to 2.67 mM. The lowest limit of detection (LOD) was measured down to 45.6 nM (S/N = 3) with a fast response time of 1-2 s. It was also found that CuO NWs in the hybrid composite greatly improved the selectivity of the sensor while SWCNTs largely benefited the response toward glucose. More importantly, interference from L-ascorbic acid, uric acid, acetaminophen, fructose, and sucrose in physiological concentration were nearly negligible. The present work would be beneficial to explore nanostructured electrocatalyst for non-enzymatic glucose detection.

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Copper Nanowires-SWCNTs Hybrid Composite for Enhanced Glucose Electrooxidation and Detection in Alkaline Medium

Cited by 7 publications

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MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

A nonenzymatic glucose sensing platform based on Ni nanowire modified electrode

A Non-Enzymatic Glucose Sensor based on Copper Oxide Nanowires-Single Wall Carbon Nanotubes

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Copper Nanowires-SWCNTs Hybrid Composite for Enhanced Glucose Electrooxidation and Detection in Alkaline Medium

Cited by 7 publications

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MoS2Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

MoS2Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

A nonenzymatic glucose sensing platform based on Ni nanowire modified electrode

A Non-Enzymatic Glucose Sensor based on Copper Oxide Nanowires-Single Wall Carbon Nanotubes

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Product

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MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing

MoS₂Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing