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Issue 16, 2015
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Direct writing electrodes using a ball pen for paper-based point-of-care testing

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Abstract

The integration of paper with an electrochemical device has attracted growing attention for point-of-care testing, where it is of great importance to fabricate electrodes on paper in a low-cost, easy and versatile way. In this work, we report a simple strategy for directly writing electrodes on paper using a pressure-assisted ball pen to form a paper-based electrochemical device (PED). This method is demonstrated to be capable of fabricating electrodes on paper with good electrical conductivity and electrochemical performance, holding great potential to be employed in point-of-care applications, such as in human health diagnostics and food safety detection. As examples, the PEDs fabricated using the developed method are applied for detection of glucose in artificial urine and melamine in sample solutions. Furthermore, our developed strategy is also extended to fabricate PEDs with multi-electrode arrays and write electrodes on non-planar surfaces (e.g., paper cup, human skin), indicating the potential application of our method in other fields, such as fabricating biosensors, paper electronics etc.

Graphical abstract: Direct writing electrodes using a ball pen for paper-based point-of-care testing

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Supplementary files

Article information


Submitted
30 Mar 2015
Accepted
24 May 2015
First published
27 May 2015

Analyst, 2015,140, 5526-5535
Article type
Paper

Direct writing electrodes using a ball pen for paper-based point-of-care testing

Z. Li, F. Li, J. Hu, W. H. Wee, Y. L. Han, B. Pingguan-Murphy, T. J. Lu and F. Xu, Analyst, 2015, 140, 5526
DOI: 10.1039/C5AN00620A

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