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Issue 20, 2013
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Paper-based electroanalytical devices with an integrated, stable reference electrode

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Abstract

This paper describes the development of a referenced Electrochemical Paper-based Analytical Device (rEPAD) comprising a sample zone, a reference zone, and a connecting microfluidic channel that includes a central contact zone. We demonstrated that the rEPADs provide a simple system for direct and accurate voltammetric measurements that are referenced by an electrode with a constant, well-defined potential. The performance of the rEPADs is comparable to commercial electrochemical cells, and the layout can be easily integrated into systems that permit multiplexed analysis and pipette-free sampling. The cost of this portable device is sufficiently low that it could be for single-use, disposable applications, and its method of fabrication is compatible with that used for other paper-based systems.

Graphical abstract: Paper-based electroanalytical devices with an integrated, stable reference electrode

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Publication details

The article was received on 27 Jun 2013, accepted on 07 Aug 2013 and first published on 08 Aug 2013


Article type: Paper
DOI: 10.1039/C3LC50771H
Citation: Lab Chip, 2013,13, 4103-4108
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    Paper-based electroanalytical devices with an integrated, stable reference electrode

    W. Lan, E. J. Maxwell, C. Parolo, D. K. Bwambok, A. B. Subramaniam and G. M. Whitesides, Lab Chip, 2013, 13, 4103
    DOI: 10.1039/C3LC50771H

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