One-step synthesis of three-dimensional Co(OH)2/rGO nano-flowers as enzyme-mimic sensors for glucose detection

Jiang, Danfeng; Chu, Zhenyu; Peng, Jingmeng; Luo, Jinyong; Mao, Yangyang; Yang, Pengqi; Jin, Wanqin

doi:10.1016/j.electacta.2018.03.066

Cited by 57 publications

(22 citation statements)

References 49 publications

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“…Non-enzymatic electrochemical detection sensor is based on the oxidize glucose to a detectable electrochemical signal, which directly occurs on the electrode surface by an electric current effect 23 . For the non-enzymatic glucose sensor, the design and fabrication of the active materials play a key role in the sensing performances since it can efficiently catalyze and oxidize glucose to produce gluconolactone and can free from the operating conditions 24,25 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of porous NiMn2O4 nanosheet arrays on nickel foam as an advanced sensor material for non-enzymatic glucose detection

Zhang

Sun

et al. 2019

Sci Rep

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In this work, porous NiMn2O4 nanosheet arrays on nickel foam (NiMn2O4 NSs@NF) was successfully fabricated by a simple hydrothermal step followed by a heat treatment. Porous NiMn2O4 NSs@NF is directly used as a sensor electrode for electrochemical detecting glucose. The NiMn2O4 nanosheet arrays are uniformly grown and packed on nickel foam to forming sensor electrode. The porous NiMn2O4 NSs@NF electrode not only provides the abundant accessible active sites and the effective ion-transport pathways, but also offers the efficient electron transport pathways for the electrochemical catalytic reaction by the high conductive nickel foam. This synergy effect endows porous NiMn2O4 NSs@NF with excellent electrochemical behaviors for glucose detection. The electrochemical measurements are used to investigate the performances of glucose detection. Porous NiMn2O4 NSs@NF for detecting glucose exhibits the high sensitivity of 12.2 mA mM−1 cm−2 at the window concentrations of 0.99–67.30 μM (correlation coefficient = 0.9982) and 12.3 mA mM−1 cm−2 at the window concentrations of 0.115–0.661 mM (correlation coefficient = 0.9908). In addition, porous NiMn2O4 NSs@NF also exhibits a fast response of 2 s and a low LOD of 0.24 µM. The combination of porous NiMn2O4 nanosheet arrays and nickel foam is a meaningful strategy to fabricate high performance non-enzymatic glucose sensor. These excellent properties reveal its potential application in the clinical detection of glucose.

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Section: Introductionmentioning

confidence: 99%

Fabrication of porous NiMn2O4 nanosheet arrays on nickel foam as an advanced sensor material for non-enzymatic glucose detection

Zhang

Sun

et al. 2019

Sci Rep

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“…We suppose that the porous s‐CuI‐Cl‐1 monolayer with a high density of exposed Cu + ions could enrich OH − from the solution by sorption, thus pushing forward the production of Cu(III) and the following oxidation of glucose. [ 16 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 12,15 ] It is generally appreciated that both the EC and PEC performances can be enhanced by the integral structure with large surface area, good mechanical strength, and prominent electrical contact allowing fast charge transfer. [ 12,16–19 ]…”

Section: Introductionmentioning

confidence: 99%

Rational Assembly of Superstructure Microparticles into Mosaic‐Like Highly Oriented Monolayer for Glucose‐Responsive Electrodes

Cai

Shi

Yazicioglu

et al. 2021

Adv Materials Inter

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Assembly of functional superstructure microparticles into large‐scale transferable ensembles is a practical approach to elaborate collective properties for catalytic and sensing applications. Here, a two‐step assembly process is proposed to fabricate a mosaic‐like highly oriented monolayer consisting of densely packed CuI superstructure microparticles (s‐CuI) over a large area. First, optimized synthesis and Cl doping of rectangular sheet‐like s‐CuI is achieved by antisolvent crystallization. Then, a steep capillary gradient is created along the water surface to compress the pre‐dispersed s‐CuI into a centimeter‐sized mosaic‐like highly oriented monolayer, which can be integrally transferred onto fluorine‐doped tin oxide glass substrates. The s‐CuI monolayer with optimal Cl doping exhibits a highly sensitive electrochemical response to glucose in a nonenzymatic weakly alkaline environment. A photoelectrochemical response to glucose can also be achieved in nonenzymatic neutral solution. The high performances are ascribed to large surface area, excellent electrical contact, and consistently exposed Cu+ active sites of the s‐CuI building blocks.

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“…Selectively, the glucose OH − groups are attracted by the nitrogen doped-support [ 13 ], that captures easier the analyte target, while the cobalt oxides offer enough active sites for the GER process. In literature, at stronger alkaline environments, such as in 0.5 M NaOH, two pair redox couples have also been reported, at ca 0.2 and 0.5 V for the CoOOH/Co(OH) 2 oxidation peaks and at ca 0.14 and 0.45 for the CoO 2 /CoOOH reduction peaks [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Cost Effective Synthesis of Graphene Nanomaterials for Non-Enzymatic Electrochemical Sensors for Glucose: A Comprehensive Review

Balkourani

Damartzis

Brouzgou

et al. 2022

Sensors

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The high conductivity of graphene material (or its derivatives) and its very large surface area enhance the direct electron transfer, improving non-enzymatic electrochemical sensors sensitivity and its other characteristics. The offered large pores facilitate analyte transport enabling glucose detection even at very low concentration values. In the current review paper we classified the enzymeless graphene-based glucose electrocatalysts’ synthesis methods that have been followed into the last few years into four main categories: (i) direct growth of graphene (or oxides) on metallic substrates, (ii) in-situ growth of metallic nanoparticles into graphene (or oxides) matrix, (iii) laser-induced graphene electrodes and (iv) polymer functionalized graphene (or oxides) electrodes. The increment of the specific surface area and the high degree reduction of the electrode internal resistance were recognized as their common targets. Analyzing glucose electrooxidation mechanism over Cu- Co- and Ni-(oxide)/graphene (or derivative) electrocatalysts, we deduced that glucose electrochemical sensing properties, such as sensitivity, detection limit and linear detection limit, totally depend on the route of the mass and charge transport between metal(II)/metal(III); and so both (specific area and internal resistance) should have the optimum values.

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One-step synthesis of three-dimensional Co(OH)2/rGO nano-flowers as enzyme-mimic sensors for glucose detection

Cited by 57 publications

References 49 publications

Fabrication of porous NiMn2O4 nanosheet arrays on nickel foam as an advanced sensor material for non-enzymatic glucose detection

Fabrication of porous NiMn2O4 nanosheet arrays on nickel foam as an advanced sensor material for non-enzymatic glucose detection

Rational Assembly of Superstructure Microparticles into Mosaic‐Like Highly Oriented Monolayer for Glucose‐Responsive Electrodes

Cost Effective Synthesis of Graphene Nanomaterials for Non-Enzymatic Electrochemical Sensors for Glucose: A Comprehensive Review

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