Nonenzymatic glucose sensing using metal oxides – Comparison of CuO, Co3O4, and NiO

Tian, Kun; Baskaran, Karthikeyan; Tiwari, Ashutosh

doi:10.1016/j.vacuum.2018.06.060

Cited by 53 publications

(31 citation statements)

References 30 publications

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“…When the electrode was stored at 4°C for two weeks, the amperometric current only declined by 2.4%. Therefore, the Co 3 O 4 nanourchin-modified electrode is stable with excellent reproducibility, which is very favorable for practical application [34][35][36].…”

Section: Resultsmentioning

confidence: 94%

Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose

Luo

Liu

et al. 2019

Journal of Nanomaterials

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A shape-controlled strategy was developed to synthesize porous Co3O4 nanoparticles, and the delicate morphology including nanourchins, nanowires, nanoflowers, and nanoplates could be well adjusted by adopting different anion precursors. The Co3O4 nanomaterials were further applied as the electrocatalysts for glucose detection, and the effect of nanostructure on the electrochemical performance was investigated. Results show that Co3O4 nanourchins illustrate the highest glucose sensitivity of 565 mA mM-1 cm-2 and a good linear detection ranging from 20 μM to 0.25 mM. The improved performance of obtained products was originally from the large surface area and high pore volume, which leads to a significantly increased accessibility of reactant and decreased Faradic electron transfer resistance, making it a promising candidate for glucose sensing.

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Section: Resultsmentioning

confidence: 94%

Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose

Luo

Liu

et al. 2019

Journal of Nanomaterials

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“…Inset is a part of the Nyquist plot in the high frequency region which shows a semicircle shape with small diameter. It possesses a certain relationship with the controlled process of the charge transfer 41 . The diameter of the semicircle in Nyquist plot is equal to the charge transfer resistance (Rct) of the active surface area of the Fe 3 O 4 nanospheres electrode, which was calculated to be www.nature.com/scientificreports/ There was a significant current response when 1 mM of glucose was in NaOH solution.…”

Section: Resultsmentioning

confidence: 99%

Solvothermal synthesis of Fe3O4 nanospheres for high-performance electrochemical non-enzymatic glucose sensor

Sun

Zhang

2020

Sci Rep

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Ferroferric oxide (Fe3O4) nanospheres have been synthesized via a facile solvothermal procedure to serve as an electrode material for high performance non-enzymatic glucose sensor. The as-synthesized Fe3O4 nanospheres with a uniform size from 16 to 18 nm, which can increase the reaction contact area and the active sites in the process of glucose detection. Benefiting from the particular nanoscale structure, the Fe3O4 nanospheres obviously enhanced the activity of electrocatalytic oxidation towards glucose. When the Fe3O4 nanospheres material was used for non-enzymatic glucose sensor, several electrochemical properties including the high sensitivity 6560 μA mM−1 cm−2 (0.1–1.1 mM), limit of detection 33 μM (S/N = 3) and good long-term stability were well demonstrated. Furthermore, Fe3O4 nanospheres electrode confirmed the excellent performance of selectivity in glucose detection with the interfering substances existed such as urea, citric acid, ascorbic acid, and NaCl. Due to the excellent electrocatalytic activity in alkaline solution, the Fe3O4 nanospheres material can be considered as a promising candidate in blood glucose monitoring.

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“…It has been shown that these sensors can evaluate glucose concentrations of 10 M or higher (an average human's blood glucose level is in the range of 4-7 mM) [12]. Nonenzymatic electrodes have recently been developed by combining various metals and metal nanoparticles (NPs), including metal/metal oxide and alloy composites, for high sensitivity and low detection limit of the FGGS [65]. Bimetallic NPs can also be used in FGGS due to their superior electronic properties and increased catalytic activity.…”

Section: Working Principle Of Fggsmentioning

confidence: 99%

“…This occurs in the vicinity of highly reactive hydroxide ions, which also serve the catalytic purpose during the oxidation of glucose molecules. Tian et al developed the following mechanism for glucose sensing using copper oxide-based NEGS [65].…”

Section: Working Principle Of Fggsmentioning

confidence: 99%

“…This then allows the oxidation of glucose to develop gluconolactone in the next step of the reaction. During the same stage, Cu 3+ gets reduced to Cu 2+ , leading to the formation of CuO or Cu(OH) 2 [65,68]. These step-by-step reactions cause a shift in the transfer rate of electrons on the electrode surface, thereby causing an increase in the overall electrical current generated.…”

Section: Working Principle Of Fggsmentioning

confidence: 99%

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Fourth‐generation glucose sensors composed of copper nanostructures for diabetes management: A critical review

Naikoo

Awan

Salim

et al. 2021

Bioengineering & Transla Med

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More than five decades have been invested in understanding glucose biosensors. Yet, this immensely versatile field has continued to gain attention from the scientific world to better understand and diagnose diabetes. However, such extensive work done to improve glucose sensing devices has still not yielded desirable results. Drawbacks like the necessity of the invasive finger pricking step and the lack of optimization of diagnostic interventions still need to be considered to improve the testing process of diabetic patients. To upgrade the glucose-sensing devices and reduce the number of intermediary steps during glucose measurement, fourth-generation glucose sensors (FGGS) have been introduced. These sensors, made using robust electrocatalytic copper nanostructures, improve diagnostic efficiency and costeffectiveness. This review aims to present the essential scientific progress in copper nanostructure-based FGGS in the past ten years (2010 -present). After a short introduction, we presented the working principles of these sensors. We then highlighted the importance of copper nanostructures as advanced electrode materials to develop reliable real-time FGGS. Finally, we cover the advantages, shortcomings, and prospects for developing highly sensitive, stable, and specific FGGS.

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Nonenzymatic glucose sensing using metal oxides – Comparison of CuO, Co3O4, and NiO

Cited by 53 publications

References 30 publications

Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose

Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose

Solvothermal synthesis of Fe3O4 nanospheres for high-performance electrochemical non-enzymatic glucose sensor

Fourth‐generation glucose sensors composed of copper nanostructures for diabetes management: A critical review

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Nonenzymatic glucose sensing using metal oxides – Comparison of CuO, Co3O4, and NiO

Cited by 53 publications

References 30 publications

Controlled Synthesis of Porous Co3O4 Nanostructures for Efficient Electrochemical Sensing of Glucose

Controlled Synthesis of Porous Co3O4 Nanostructures for Efficient Electrochemical Sensing of Glucose

Solvothermal synthesis of Fe3O4 nanospheres for high-performance electrochemical non-enzymatic glucose sensor

Fourth‐generation glucose sensors composed of copper nanostructures for diabetes management: A critical review

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Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose

Controlled Synthesis of Porous Co₃O₄ Nanostructures for Efficient Electrochemical Sensing of Glucose