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Issue 19, 2003
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Electrochemistry of immobilised redox droplets: Concepts and applications

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The use of microdroplet modified electrodes provides a simple methodology with which to study the biphasic electrochemistry of a plethora of species, encouraging the use of such techniques to mimic emulsion media. Furthermore, since the droplets may be miniaturised, this approach may assist in the field of biomimetic electrochemistry. For these reasons, this paper reviews the voltammetry of electrodes modified with electrochemically active droplets. The primary focus of the review is of unsupported droplets, where electron transfer processes occur at the three phase boundary, the base circumference of the individual droplets (of a volume range spanning nine orders of magnitude, going from microlitre to femtolitre volumes). The voltammetry of such systems is categorised via a semi-quantitative appreciation of the voltammetric characteristics. Finally, several topical examples illustrating the potential of application of this technology are described.

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Publication details

The article was received on 26 Jun 2003, accepted on 06 Aug 2003 and first published on 03 Sep 2003

Article type: Invited Article
DOI: 10.1039/B307326M
Citation: Phys. Chem. Chem. Phys., 2003,5, 4053-4069
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    Electrochemistry of immobilised redox droplets: Concepts and applications

    C. E. Banks, T. J. Davies, R. G. Evans, G. Hignett, A. J. Wain, N. S. Lawrence, J. D. Wadhawan, F. Marken and R. G. Compton, Phys. Chem. Chem. Phys., 2003, 5, 4053
    DOI: 10.1039/B307326M

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