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Generating power from transdermal extracts using a multi-electrode miniature enzymatic fuel cell


Reference:

Du Toit, H., Rashidi, R. B., Ferdani, D. W., Delgado-Charro, M. B., Sangan, C. M. and Di Lorenzo, M., 2016. Generating power from transdermal extracts using a multi-electrode miniature enzymatic fuel cell. Biosensors and Bioelectronics, 78, pp. 411-417.

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    Official URL:

    http://dx.doi.org/10.1016/j.bios.2015.11.074

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    Abstract

    The development of self-powered wearable biodevices is highly attractive for a number of applications, such as health monitoring and drug delivery. Enzymatic fuel cells (EFCs) hold great potential as power sources for such devices, since they can generate power from physiological fluids and operate at body temperature. In this study, we present a cascade of three EFCs embedded in a compact and handy single channel device and we demonstrate for the first time power generation from iontophoresis extracts obtained from pig skin. The EFCs implement non-toxic highly-porous gold electrodes; an easy-to-reproduce procedure is adopted for the immobilization of glucose oxidase and laccase at the anode and cathode respectively; no external mediators are used; and the system design can easily be further miniaturized. When electrically connected in parallel, the EFCs generated a power output close to the sum of the power generated by each unit, with peak values of 0.7 µW (flow-through mode) and 0.4 µW (batch mode), at a glucose concentration of 27 mM. When the device was fed with transdermal extracts, containing only 30 μM of glucose, the average peak power was proportionally lower (0.004 µW).

    Details

    Item Type Articles
    CreatorsDu Toit, H., Rashidi, R. B., Ferdani, D. W., Delgado-Charro, M. B., Sangan, C. M. and Di Lorenzo, M.
    DOI10.1016/j.bios.2015.11.074
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    URLURL Type
    http://dx.doi.org/10.1016/j.bios.2015.11.074Free Full-text
    Uncontrolled Keywordsenzymatic fuel cell; glucose oxidase; laccase; highly porous gold; reverse iontophoresis
    DepartmentsFaculty of Engineering & Design > Chemical Engineering
    Faculty of Science > Chemistry
    Faculty of Science > Pharmacy & Pharmacology
    Faculty of Engineering & Design > Mechanical Engineering
    Research CentresCentre for Sustainable Chemical Technologies
    Aerospace Engineering Research Centre
    EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    ?? WIRC ??
    Centre for Mathematical Biology
    RefereedYes
    StatusPublished
    ID Code48378

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