Preparation of carbon nanotubes decorated with manganese dioxide nanoparticles for electrochemical determination of ferulic acid

A. T.Ezhil Vilian; Shen Ming Chen

doi:10.1007/s00604-014-1431-2

Preparation of carbon nanotubes decorated with manganese dioxide nanoparticles for electrochemical determination of ferulic acid

A. T.Ezhil Vilian, Shen Ming Chen

Department of Energy and Materials Engineering

National Taipei University of Technology

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

We report on an electrochemical sensor for the detection of ferulic acid (FA) that is based on a glassy carbon electrode modified with functional multiwalled carbon nanotubes that are decorated with MnO₂ nanoparticles. The new electrode shows excellent electrochemical catalytic activity towards the oxidation of ferulic acid at pH 7. Cyclic voltammetry reveals a 23 mV decrease in the peak-to-peak separation of the oxidation and reduction waves. Under optimized conditions, the anodic peak current at a voltage of 150 mV (vs. Ag/AgCl) is linearly related to the peak current in the 0.082–220 μM concentration range, and the limit of detection (at an SNR of 3) is 10 nM. The sensor was applied to the determination of FA in spiked human serum samples and gave satisfactory results, with recoveries ranging from 97 to 99.2 %.

[Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1103-1111
Number of pages	9
Journal	Microchimica Acta
Volume	182
Issue number	5-6
DOIs	https://doi.org/10.1007/s00604-014-1431-2
State	Published - Apr 2015

Keywords

Electrocatalysis
Ferulic acid
Functionalized multi walled carbon nanotubes
Sensor
Square wave voltammetry

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10.1007/s00604-014-1431-2

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title = "Preparation of carbon nanotubes decorated with manganese dioxide nanoparticles for electrochemical determination of ferulic acid",

abstract = "We report on an electrochemical sensor for the detection of ferulic acid (FA) that is based on a glassy carbon electrode modified with functional multiwalled carbon nanotubes that are decorated with MnO2 nanoparticles. The new electrode shows excellent electrochemical catalytic activity towards the oxidation of ferulic acid at pH 7. Cyclic voltammetry reveals a 23 mV decrease in the peak-to-peak separation of the oxidation and reduction waves. Under optimized conditions, the anodic peak current at a voltage of 150 mV (vs. Ag/AgCl) is linearly related to the peak current in the 0.082–220 μM concentration range, and the limit of detection (at an SNR of 3) is 10 nM. The sensor was applied to the determination of FA in spiked human serum samples and gave satisfactory results, with recoveries ranging from 97 to 99.2 %.[Figure not available: see fulltext.]",

keywords = "Electrocatalysis, Ferulic acid, Functionalized multi walled carbon nanotubes, Sensor, Square wave voltammetry",

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T1 - Preparation of carbon nanotubes decorated with manganese dioxide nanoparticles for electrochemical determination of ferulic acid

AU - Vilian, A. T.Ezhil

AU - Chen, Shen Ming

PY - 2015/4

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N2 - We report on an electrochemical sensor for the detection of ferulic acid (FA) that is based on a glassy carbon electrode modified with functional multiwalled carbon nanotubes that are decorated with MnO2 nanoparticles. The new electrode shows excellent electrochemical catalytic activity towards the oxidation of ferulic acid at pH 7. Cyclic voltammetry reveals a 23 mV decrease in the peak-to-peak separation of the oxidation and reduction waves. Under optimized conditions, the anodic peak current at a voltage of 150 mV (vs. Ag/AgCl) is linearly related to the peak current in the 0.082–220 μM concentration range, and the limit of detection (at an SNR of 3) is 10 nM. The sensor was applied to the determination of FA in spiked human serum samples and gave satisfactory results, with recoveries ranging from 97 to 99.2 %.[Figure not available: see fulltext.]

AB - We report on an electrochemical sensor for the detection of ferulic acid (FA) that is based on a glassy carbon electrode modified with functional multiwalled carbon nanotubes that are decorated with MnO2 nanoparticles. The new electrode shows excellent electrochemical catalytic activity towards the oxidation of ferulic acid at pH 7. Cyclic voltammetry reveals a 23 mV decrease in the peak-to-peak separation of the oxidation and reduction waves. Under optimized conditions, the anodic peak current at a voltage of 150 mV (vs. Ag/AgCl) is linearly related to the peak current in the 0.082–220 μM concentration range, and the limit of detection (at an SNR of 3) is 10 nM. The sensor was applied to the determination of FA in spiked human serum samples and gave satisfactory results, with recoveries ranging from 97 to 99.2 %.[Figure not available: see fulltext.]

KW - Electrocatalysis

KW - Ferulic acid

KW - Functionalized multi walled carbon nanotubes

KW - Sensor

KW - Square wave voltammetry

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Preparation of carbon nanotubes decorated with manganese dioxide nanoparticles for electrochemical determination of ferulic acid

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Keywords

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