An amperometric hydrogen peroxide biosensor based on Co3O4 nanoparticles and multiwalled carbon nanotube modified glassy carbon electrode

Kaçar, Ceren; Dalkıran, Berna; Erden, Pınar Esra; Kılıç, Esma

doi:10.1016/j.apsusc.2014.05.028

Cited by 65 publications

(33 citation statements)

References 49 publications

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“…Kaçar et al used HRP, MWCNTs, and Co 3 O 4 nanoparticles on a GCE for hydrogen peroxide detection [95]. A coating of Co 3 O 4 /MWCNTs/gelatin solution was dried on the electrode surface, HRP was added, the electrode was treated with saturated glutaraldehyde, and then finally Nafion coated.…”

Section: 0 Hydrogen Peroxidementioning

confidence: 99%

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

Yang

Denno

Pyakurel

et al. 2015

Analytica Chimica Acta

480

263

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Carbon nanomaterials are advantageous for electrochemical sensors because they increase the electroactive surface area, enhance electron transfer, and promote adsorption of molecules. Carbon nanotubes (CNTs) have been incorporated into electrochemical sensors for biomolecules and strategies have included the traditional dip coating and drop casting methods, direct growth of CNTs on electrodes and the use of CNT fibers and yarns made exclusively of CNTs. Recent research has also focused on utilizing many new types of carbon nanomaterials beyond CNTs. Forms of graphene are now increasingly popular for sensors including reduced graphene oxide, carbon nanohorns, graphene nanofoams, graphene nanorods, and graphene nanoflowers. In this review, we compare different carbon nanomaterial strategies for creating electrochemical sensors for biomolecules. Analytes covered include neurotransmitters and neurochemicals, such as dopamine, ascorbic acid, and serotonin; hydrogen peroxide; proteins, such as biomarkers; and DNA. The review also addresses enzyme-based electrodes that are used to detect non-electroactive species such as glucose, alcohols, and proteins. Finally, we analyze some of the future directions for the field, pointing out gaps in fundamental understanding of electron transfer to carbon nanomaterials and the need for more practical implementation of sensors.

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Section: 0 Hydrogen Peroxidementioning

confidence: 99%

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

Yang

Denno

Pyakurel

et al. 2015

Analytica Chimica Acta

480

263

View full text Add to dashboard Cite

show abstract

“…[12][13][14] Chemically modified matrices should possess a high conductivity and a preferably low electron transfer resistance on their selective surface. 19,20 These composites are effective strategies to improve the performance of electrochemical sensors. For these reasons, there is emerging interest in nanostructured surfaces to be used in voltammetric determination.…”

Section: Introductionmentioning

confidence: 99%

A novel sensor for sensitive determination of atropine based on a Co₃O₄-reduced graphene oxide modified carbon paste electrode

et al. 2015

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This paper has presented a novel strategy to carry out direct and sensitive determination of atropine in complex matrices based on the Co 3 O 4 -graphene modified carbon paste electrode. This novel nanostructure was characterized by different spectroscopic and electrochemical techniques including scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and electrochemical impedance spectroscopy. The fabricated electrochemical sensor showed good electrochemical response towards atropine. Under the optimized conditions, the calibration curve for atropine concentration was linear in the range from 0.1 to 3.2 mmol L À1 with the detection limit of 0.03 mmol L À1 . In addition, the practical analytical performance of the sensor was examined by evaluating the selective detection of atropine in biological fluids and pharmaceutical samples with satisfied recovery. Therefore, the prepared sensor may hold great promise for fast, simple and sensitive detection and biomedical analysis of atropine in various real samples.

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“…The linear concentration range sensitivity and detection limit based on a signal to noise ratio of 3 are shown in Table 2. As can be observed, the values obtained for the nanoparticles synthesized in the current work are worth as compared to other similar materials found in literature [12,[22][23][24][25].…”

Section: Optimization Of the Experimental Parametersmentioning

confidence: 51%

Comparison of ferrite nanoparticles obtained electrochemically for catalytical reduction of hydrogen peroxide

Jaime-González

Mazarío

Menéndez

et al. 2015

J Solid State Electrochem

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Ferrites of iron, cobalt, and nickel were used as a non-enzymatic sensor for detection of hydrogen peroxide. Xray diffraction (XRD) and transmission electron microscopy revealed that the nanoparticles obtained by electrochemical route and varying the parameters synthesis show similar size of around 20 nm and a relation metal/iron equal to 1/2. The effect of pH, temperature, amount of nanoparticles, and potential has been studied to obtain the best sensor properties in terms of sensitivity and linear response. The mechanism has been attributed to the oxidation of Fe 2+ , Co 2+ , and Ni 2+ in the octahedral position of the spinel that enhances the catalytic reduction of hydrogen peroxide. The best sensor has been obtained with magnetite (iron ferrite) with a detection limit of 7.3×10 −6 M and a sensitivity of 4.0×10 −4 μA/M. The magnetite was also applied to determine hydrogen peroxide in commercial contact lens cleaner Novoxy® with satisfactory results.

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An amperometric hydrogen peroxide biosensor based on Co3O4 nanoparticles and multiwalled carbon nanotube modified glassy carbon electrode

Cited by 65 publications

References 49 publications

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

A novel sensor for sensitive determination of atropine based on a Co₃O₄-reduced graphene oxide modified carbon paste electrode

Comparison of ferrite nanoparticles obtained electrochemically for catalytical reduction of hydrogen peroxide

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An amperometric hydrogen peroxide biosensor based on Co3O4 nanoparticles and multiwalled carbon nanotube modified glassy carbon electrode

Cited by 65 publications

References 49 publications

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

Recent trends in carbon nanomaterial-based electrochemical sensors for biomolecules: A review

A novel sensor for sensitive determination of atropine based on a Co3O4-reduced graphene oxide modified carbon paste electrode

Comparison of ferrite nanoparticles obtained electrochemically for catalytical reduction of hydrogen peroxide

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A novel sensor for sensitive determination of atropine based on a Co₃O₄-reduced graphene oxide modified carbon paste electrode