Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode as an electrochemical sensor for the simultaneous determination of uric acid in the presence of ascorbic acid, dopamine and l-tyrosine

Arvind Kumar Bhakta, Ronald J. Mascarenhas, Ozma J. D'Souza, Ashis K. Satpati, Simon Detriche, Zineb Mekhalif, Joseph Delhalle

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Résumé

- 8 M-1.0 × 10- 6 M and 2.0 × 10- 6 M-1.0 × 10- 5 M with detection limit (4.80 ± 0.35) × 10- 8 M (S/N = 3). The practical analytical application of this sensor was successfully evaluated by determination of spiked UA in clinical samples, such as human blood serum and urine with good percentage recovery. The proposed electrochemical sensor offers a simple, reliable, rapid, reproducible and cost effective analysis of a quaternary mixture of biomolecules containing AA, DA, UA and Tyr which was free from mutual interferences.]]>

langueAnglais
Pages328-337
Nombre de pages10
journalMaterials science and engineering C
Volume57
Les DOIs
étatPublié - 17 août 2015

Empreinte digitale

Electrochemical sensors
Carbon Nanotubes
Voltammetry
Ointments
Uric Acid
Ascorbic Acid
Tyrosine
Dopamine
Carbon
Iron
Nanoparticles
Electrodes
uric acid
dopamine
ascorbic acid
tyrosine
carbon nanotubes
iron
nanoparticles
electrodes

mots-clés

    Citer ceci

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    title = "Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode as an electrochemical sensor for the simultaneous determination of uric acid in the presence of ascorbic acid, dopamine and l-tyrosine",
    abstract = "Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode (Fe-MWCNTs/MCPE) was prepared by bulk-modification method. The electrochemical impedance spectroscopy (EIS) suggests least charge transfer resistance at the modified electrode. The electrochemical behavior of UA was studied in 0.1 M phosphate buffer solution (PBS) of pH 3.0 using cyclic voltammetry (CV) while differential pulse voltammetry (DPV) was used for quantification. The spectroelectrochemial study of oxidation of UA at Fe-MWCNTs/MCPE showed a decrease in the absorbance of two peaks with time, which are ascribed to π to π∗ and n to π∗ transitions. Under optimum condition, the DPV response offered two linear dynamic ranges for UA in the concentration range 7.0 × 10- 8 M-1.0 × 10- 6 M and 2.0 × 10- 6 M-1.0 × 10- 5 M with detection limit (4.80 ± 0.35) × 10- 8 M (S/N = 3). The practical analytical application of this sensor was successfully evaluated by determination of spiked UA in clinical samples, such as human blood serum and urine with good percentage recovery. The proposed electrochemical sensor offers a simple, reliable, rapid, reproducible and cost effective analysis of a quaternary mixture of biomolecules containing AA, DA, UA and Tyr which was free from mutual interferences.",
    keywords = "Iron nanoparticles decorated multi-wall carbon nanotubes, Uric acid, Ascorbic acid, Dopamine, L-Tyrosine, Differential pulse voltammetry",
    author = "Bhakta, {Arvind Kumar} and Mascarenhas, {Ronald J.} and D'Souza, {Ozma J.} and Satpati, {Ashis K.} and Simon Detriche and Zineb Mekhalif and Joseph Delhalle",
    year = "2015",
    month = "8",
    doi = "10.1016/j.msec.2015.08.003",
    volume = "57",
    pages = "328--337",
    journal = "Materials science and engineering C",
    issn = "0928-4931",
    publisher = "Elsevier",

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    TY - JOUR

    T1 - Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode as an electrochemical sensor for the simultaneous determination of uric acid in the presence of ascorbic acid, dopamine and l-tyrosine

    AU - Bhakta,Arvind Kumar

    AU - Mascarenhas,Ronald J.

    AU - D'Souza,Ozma J.

    AU - Satpati,Ashis K.

    AU - Detriche,Simon

    AU - Mekhalif,Zineb

    AU - Delhalle,Joseph

    PY - 2015/8/17

    Y1 - 2015/8/17

    N2 - Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode (Fe-MWCNTs/MCPE) was prepared by bulk-modification method. The electrochemical impedance spectroscopy (EIS) suggests least charge transfer resistance at the modified electrode. The electrochemical behavior of UA was studied in 0.1 M phosphate buffer solution (PBS) of pH 3.0 using cyclic voltammetry (CV) while differential pulse voltammetry (DPV) was used for quantification. The spectroelectrochemial study of oxidation of UA at Fe-MWCNTs/MCPE showed a decrease in the absorbance of two peaks with time, which are ascribed to π to π∗ and n to π∗ transitions. Under optimum condition, the DPV response offered two linear dynamic ranges for UA in the concentration range 7.0 × 10- 8 M-1.0 × 10- 6 M and 2.0 × 10- 6 M-1.0 × 10- 5 M with detection limit (4.80 ± 0.35) × 10- 8 M (S/N = 3). The practical analytical application of this sensor was successfully evaluated by determination of spiked UA in clinical samples, such as human blood serum and urine with good percentage recovery. The proposed electrochemical sensor offers a simple, reliable, rapid, reproducible and cost effective analysis of a quaternary mixture of biomolecules containing AA, DA, UA and Tyr which was free from mutual interferences.

    AB - Iron nanoparticles decorated multi-wall carbon nanotubes modified carbon paste electrode (Fe-MWCNTs/MCPE) was prepared by bulk-modification method. The electrochemical impedance spectroscopy (EIS) suggests least charge transfer resistance at the modified electrode. The electrochemical behavior of UA was studied in 0.1 M phosphate buffer solution (PBS) of pH 3.0 using cyclic voltammetry (CV) while differential pulse voltammetry (DPV) was used for quantification. The spectroelectrochemial study of oxidation of UA at Fe-MWCNTs/MCPE showed a decrease in the absorbance of two peaks with time, which are ascribed to π to π∗ and n to π∗ transitions. Under optimum condition, the DPV response offered two linear dynamic ranges for UA in the concentration range 7.0 × 10- 8 M-1.0 × 10- 6 M and 2.0 × 10- 6 M-1.0 × 10- 5 M with detection limit (4.80 ± 0.35) × 10- 8 M (S/N = 3). The practical analytical application of this sensor was successfully evaluated by determination of spiked UA in clinical samples, such as human blood serum and urine with good percentage recovery. The proposed electrochemical sensor offers a simple, reliable, rapid, reproducible and cost effective analysis of a quaternary mixture of biomolecules containing AA, DA, UA and Tyr which was free from mutual interferences.

    KW - Iron nanoparticles decorated multi-wall carbon nanotubes

    KW - Uric acid

    KW - Ascorbic acid

    KW - Dopamine

    KW - L-Tyrosine

    KW - Differential pulse voltammetry

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    U2 - 10.1016/j.msec.2015.08.003

    DO - 10.1016/j.msec.2015.08.003

    M3 - Article

    VL - 57

    SP - 328

    EP - 337

    JO - Materials science and engineering C

    T2 - Materials science and engineering C

    JF - Materials science and engineering C

    SN - 0928-4931

    ER -