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Pencil drawn microelectrode on paper and its application in two-electrode electrochemical sensors

Abstract

A simple approach for fabricating inexpensive, disposable pencil drawn microelectrode on paper for two-electrode electrochemical system is developed. The morphology of the fabricated microelectrode was evaluated by optical microscopy and scanning electron microscopy. The electrochemical behaviors of the pencil drawn microelectrode have been investigated by cyclic voltammetry using ferrocyanide /ferricyanide as redox probes. Moreover, Prussian blue was successfully electrochemically deposited onto the pencil drawn microelectrode to detect hydrogen peroxide with a low detection limit of 0.05 µM and a wide linear range from 1.0 µM to 1300 µM (R = 0.997). This cheap and effective microelectrode fabrication method may offer a wide channel for developing lab-on paper application through appropriate combination of graphite pencil traces and paper properties.

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Publication details

The article was received on 07 Mar 2017, accepted on 12 May 2017 and first published on 12 May 2017


Article type: Paper
DOI: 10.1039/C7AY00605E
Citation: Anal. Methods, 2017, Accepted Manuscript
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    Pencil drawn microelectrode on paper and its application in two-electrode electrochemical sensors

    E. Y. Y. Jomma, N. Bao and S. Ding, Anal. Methods, 2017, Accepted Manuscript , DOI: 10.1039/C7AY00605E

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