Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase

Hao Wen, Vijayadurga Nallathambi, Deboleena Chakraborty, Scott Calabrese Barton

    Research output: Contribution to journalArticle

    • 23 Citations

    Abstract

    Carboxylated carbon nanotubes were coated onto carbon microfiber electrodes to create a micron-scale bioelectrode. This material has a high surface area and can serve as a support for immobilization of enzymes such as glucose oxidase. A typical carbon nanotube loading of 13 μg cm-1 yields a coating thickness of 17 μm and a 2000-fold increase in surface capacitance. The modified electrode was further coated with a biocatalytic hydrogel composed of a conductive redox polymer, glucose oxidase, and a crosslinker to create a glucose bioelectrode. The current density on oxidation of glucose is 16.6 mA cm-2 at 0.5 V (vs. Ag/AgCl) in oxygen-free glucose solution. We consider this approach to be useful for designing and characterizing surface treatments for carbon mats and papers by mimicking their local microenvironment.

    Original languageEnglish (US)
    Pages (from-to)283-289
    Number of pages7
    JournalMicrochimica Acta
    Volume175
    Issue number3-4
    DOIs
    StatePublished - Dec 2011

    Profile

    Edema Disease of Swine
    Autoradiography
    Mainframe Computers
    Avian Leukosis
    Acetabularia
    Contraceptives, Oral, Combined
    Cellulase
    Traffic Accidents
    Carotid Arteries
    Oxidation-Reduction
    Surface treatment

    Keywords

    • Biofuel cells
    • Carbon fiber microelectrode
    • Carbon nanotube
    • Electrocatalysis

    ASJC Scopus subject areas

    • Analytical Chemistry

    Cite this

    Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase. / Wen, Hao; Nallathambi, Vijayadurga; Chakraborty, Deboleena; Barton, Scott Calabrese.

    In: Microchimica Acta, Vol. 175, No. 3-4, 12.2011, p. 283-289.

    Research output: Contribution to journalArticle

    Wen, Hao; Nallathambi, Vijayadurga; Chakraborty, Deboleena; Barton, Scott Calabrese / Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase.

    In: Microchimica Acta, Vol. 175, No. 3-4, 12.2011, p. 283-289.

    Research output: Contribution to journalArticle

    @article{26e7a226147d4b76a8ba69f3933dad0c,
    title = "Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase",
    abstract = "Carboxylated carbon nanotubes were coated onto carbon microfiber electrodes to create a micron-scale bioelectrode. This material has a high surface area and can serve as a support for immobilization of enzymes such as glucose oxidase. A typical carbon nanotube loading of 13 μg cm-1 yields a coating thickness of 17 μm and a 2000-fold increase in surface capacitance. The modified electrode was further coated with a biocatalytic hydrogel composed of a conductive redox polymer, glucose oxidase, and a crosslinker to create a glucose bioelectrode. The current density on oxidation of glucose is 16.6 mA cm-2 at 0.5 V (vs. Ag/AgCl) in oxygen-free glucose solution. We consider this approach to be useful for designing and characterizing surface treatments for carbon mats and papers by mimicking their local microenvironment.",
    keywords = "Biofuel cells, Carbon fiber microelectrode, Carbon nanotube, Electrocatalysis",
    author = "Hao Wen and Vijayadurga Nallathambi and Deboleena Chakraborty and Barton, {Scott Calabrese}",
    year = "2011",
    month = "12",
    doi = "10.1007/s00604-011-0684-2",
    volume = "175",
    pages = "283--289",
    journal = "Mikrochimica Acta",
    issn = "0026-3672",
    publisher = "Springer Wien",
    number = "3-4",

    }

    TY - JOUR

    T1 - Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase

    AU - Wen,Hao

    AU - Nallathambi,Vijayadurga

    AU - Chakraborty,Deboleena

    AU - Barton,Scott Calabrese

    PY - 2011/12

    Y1 - 2011/12

    N2 - Carboxylated carbon nanotubes were coated onto carbon microfiber electrodes to create a micron-scale bioelectrode. This material has a high surface area and can serve as a support for immobilization of enzymes such as glucose oxidase. A typical carbon nanotube loading of 13 μg cm-1 yields a coating thickness of 17 μm and a 2000-fold increase in surface capacitance. The modified electrode was further coated with a biocatalytic hydrogel composed of a conductive redox polymer, glucose oxidase, and a crosslinker to create a glucose bioelectrode. The current density on oxidation of glucose is 16.6 mA cm-2 at 0.5 V (vs. Ag/AgCl) in oxygen-free glucose solution. We consider this approach to be useful for designing and characterizing surface treatments for carbon mats and papers by mimicking their local microenvironment.

    AB - Carboxylated carbon nanotubes were coated onto carbon microfiber electrodes to create a micron-scale bioelectrode. This material has a high surface area and can serve as a support for immobilization of enzymes such as glucose oxidase. A typical carbon nanotube loading of 13 μg cm-1 yields a coating thickness of 17 μm and a 2000-fold increase in surface capacitance. The modified electrode was further coated with a biocatalytic hydrogel composed of a conductive redox polymer, glucose oxidase, and a crosslinker to create a glucose bioelectrode. The current density on oxidation of glucose is 16.6 mA cm-2 at 0.5 V (vs. Ag/AgCl) in oxygen-free glucose solution. We consider this approach to be useful for designing and characterizing surface treatments for carbon mats and papers by mimicking their local microenvironment.

    KW - Biofuel cells

    KW - Carbon fiber microelectrode

    KW - Carbon nanotube

    KW - Electrocatalysis

    UR - http://www.scopus.com/inward/record.url?scp=81155152401&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=81155152401&partnerID=8YFLogxK

    U2 - 10.1007/s00604-011-0684-2

    DO - 10.1007/s00604-011-0684-2

    M3 - Article

    VL - 175

    SP - 283

    EP - 289

    JO - Mikrochimica Acta

    T2 - Mikrochimica Acta

    JF - Mikrochimica Acta

    SN - 0026-3672

    IS - 3-4

    ER -