Electrochemical glucose sensitive device based on graphene supported Co3O4@Ag NWs core-shell nanostructures

Zhao, Zhenting; Huang, Yueyun; Li, Qiuguo; Mei, Haijuan; Zhu, Fanglong; Gong, Weiping

doi:10.1016/j.apsusc.2021.150553

Cited by 24 publications

(4 citation statements)

References 53 publications

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“…48,49 The O 1s spectrum (Figure 4D) exhibits three oxygen components centered at binding energies of 528.7, 531.0, and 533.8 eV, which are attributed to oxygen bonding with copper and cobalt, existence of defect sites, and hydroxyl groups adsorbed chemically or physically on the nanomaterial surface. 50 The XPS results demonstrated the existence of Cu 2+ , Co 2+ , Co 3+ , O 2− , and S 2− ions on the surface of the rodlike nanocomposite. After introduction of 0.5 mM glucose to the 0.1 M NaOH solution, the anodic peak current intensity at 0.51 V (II p,a ) increased, while the current response of cathodic peaks at 0.13 V (I p,c ) and 0.51 V (II p,c ) and the anodic peak at 0.17 V (I p,a ) decreased.…”

Section: Resultsmentioning

confidence: 88%

“…The S 2p spectrum (Figure C) show two peaks at binding energies of 161.3 and 163.46 eV, which are assigned to S 2p 3/2 and S 2p 1/2 , respectively . Moreover, the peak at about 167.1 eV is related to the oxidized part of the cobalt sulfide surface in the as-prepared material because of exposure in air. , The O 1s spectrum (Figure D) exhibits three oxygen components centered at binding energies of 528.7, 531.0, and 533.8 eV, which are attributed to oxygen bonding with copper and cobalt, existence of defect sites, and hydroxyl groups adsorbed chemically or physically on the nanomaterial surface . The XPS results demonstrated the existence of Cu 2+ , Co 2+ , Co 3+ , O 2– , and S 2– ions on the surface of the rod-like nanocomposite.…”

Section: Resultsmentioning

confidence: 96%

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Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Naderi

Shahrokhian

Amini

et al. 2023

ACS Appl. Nano Mater.

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Fabrication of reasonable nanoarchitectures for electroactive materials is regarded as one the important strategies for the enhancement of their electrocatalytic activity. Herein, CuCo2O4 nanorods and nanospheres were synthesized using a solvo-/hydrothermal method followed by annealing treatment. Then, Co3S4 nanosheets were grown on CuCo2O4 nanostructures by the electrochemical deposition method to form Co3S4/CuCo2O4 hybrid nanoarchitectures as active sensing materials for the determination of glucose and hydrogen peroxide. In comparison to the sphere-shaped Co3S4/CuCo2O4 nanocomposite, the CuCo2O4 nanorods anchored to Co3S4 nanosheets displayed superior electrocatalytic properties toward glucose oxidation and H2O2 reduction due to their high electrical conductivity and large surface area. The rod-like nanocomposite exhibited wide linear ranges (0.001–0.405 and 0.405–5.03 mM), high sensitivities (1062.50 and 512.50 μA mM–1 cm–2), low detection limit (2.1 μM), excellent selectivity, and long-term stability for glucose sensing. In addition, this sensor provided satisfactory results for determination of glucose in real biological samples. The as-proposed nanorod sensor also provided a high sensitivity (275 μA mM–1 cm–2) toward hydrogen peroxide reduction with a wide linear range of 0.001–4.03 mM and negligible interfering effects. These results suggest that the as-prepared electrocatalyst provides a promising sensing platform for the analysis of biological samples.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 96%

Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Naderi

Shahrokhian

Amini

et al. 2023

ACS Appl. Nano Mater.

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“…Graphene and carbon nanotubes (CNTs) are potential carbon material analogs; owing to their ease functionalization, notable biocompatibility, good conductivity, and the large specific surface area, they have been extensively explored in the electrode transducer materials [63,64]. Nanocomposites prepared from graphene, carbon nanotube and polymer matrix can not only reduce the interior resistances of electrode but also inhibit the stacking of graphene layers, and then decrease the adsorption of carbon nanotubes [63,65]. The Mu research group prepared a various aspect ratio of Au and Ag nanoparticles electro-deposited on the reduced graphene oxide (RGO)/glassy carbon (GC) surface to form Au/Ag/RGO/GC and Ag/Au/RGO/GC electrodes.…”

Section: Bimetallic Nanocomposite Materials Based Glucose Detectionmentioning

confidence: 99%

Bimetallic Nanomaterials-Based Electrochemical Biosensor Platforms for Clinical Applications

Kannan

Maduraiveeran

2021

Micromachines

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Diabetes is a foremost health issue that results in ~4 million deaths every year and ~170 million people suffering globally. Though there is no treatment for diabetes yet, the blood glucose level of diabetic patients should be checked closely to avoid further problems. Screening glucose in blood has become a vital requirement, and thus the fabrication of advanced and sensitive blood sugar detection methodologies for clinical analysis and individual care. Bimetallic nanoparticles (BMNPs) are nanosized structures that are of rising interest in many clinical applications. Although their fabrication shares characteristics with physicochemical methodologies for the synthesis of corresponding mono-metallic counterparts, they can display several interesting new properties and applications as a significance of the synergetic effect between their two components. These applications can be as diverse as clinical diagnostics, anti-bacterial/anti-cancer treatments or biological imaging analyses, and drug delivery. However, the exploitation of BMNPs in such fields has received a small amount of attention predominantly due to the vital lack of understanding and concerns mainly on the usage of other nanostructured materials, such as stability and bio-degradability over extended-time, ability to form clusters, chemical reactivity, and biocompatibility. In this review article, a close look at bimetallic nanomaterial based glucose biosensing approaches is discussed, concentrating on their clinical applications as detection of glucose in various real sample sources, showing substantial development of their features related to corresponding monometallic counterparts and other existing used nanomaterials for clinical applications.

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“…The blood glucose levels of patients need to be strictly and continuously controlled in a real-time manner. Therefore, the accurate, rapid, and sensitive monitoring of glucose concentration is immensely significant for the diagnosis and treatment of related diseases [1,2]. Enzyme glucose sensors based on glucose oxidase (GOx) are often used to detect glucose levels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Layer Thickness on the Electrocatalytic Oxidation of Glucose in a Ni/BDD Composite Electrode

Long,

Wen,

Liu

et al. 2023

Molecules

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High-performance non-enzymatic glucose sensor composite electrodes were prepared by loading Ni onto a boron-doped diamond (BDD) film surface through a thermal catalytic etching method. A carbon precipitate with a desired thickness could be formed on the Ni/BDD composite electrode surface by tuning the processing conditions. A systematic study regarding the influence of the precipitated carbon layer thickness on the electrocatalytic oxidation of glucose was conducted. While an oxygen plasma was used to etch the precipitated carbon, Ni/BDD-based composite electrodes with the precipitated carbon layers of different thicknesses could be obtained by controlling the oxygen plasma power. These Ni/BDD electrodes were characterized by SEM microscopies, Raman and XPS spectroscopies, and electrochemical tests. The results showed that the carbon layer thickness exerted a significant impact on the resulting electrocatalytic performance. The electrode etched under 200 W power exhibited the best performance, followed by the untreated electrode and the electrode etched under 400 W power with the worst performance. Specifically, the electrode etched under 200 W was demonstrated to possess the highest sensitivity of 1443.75 μA cm−2 mM−1 and the lowest detection limit of 0.5 μM.

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Electrochemical glucose sensitive device based on graphene supported Co3O4@Ag NWs core-shell nanostructures

Cited by 24 publications

References 53 publications

Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Bimetallic Nanomaterials-Based Electrochemical Biosensor Platforms for Clinical Applications

Effect of Carbon Layer Thickness on the Electrocatalytic Oxidation of Glucose in a Ni/BDD Composite Electrode

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Electrochemical glucose sensitive device based on graphene supported Co3O4@Ag NWs core-shell nanostructures

Cited by 24 publications

References 53 publications

Comparison of Electrocatalytic Performance of CuCo2O4 Nanorods and Nanospheres Decorated with Co3S4 Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Comparison of Electrocatalytic Performance of CuCo2O4 Nanorods and Nanospheres Decorated with Co3S4 Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Bimetallic Nanomaterials-Based Electrochemical Biosensor Platforms for Clinical Applications

Effect of Carbon Layer Thickness on the Electrocatalytic Oxidation of Glucose in a Ni/BDD Composite Electrode

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Product

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Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum

Comparison of Electrocatalytic Performance of CuCo₂O₄ Nanorods and Nanospheres Decorated with Co₃S₄ Nanosheets for Electrochemical Sensing of Hydrogen Peroxide and Glucose in Human Serum