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Issue 4, 2010
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Electrochemical sensing in paper-based microfluidic devices

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Abstract

This paper describes the fabrication and the performance of microfluidic paper-based electrochemical sensing devices (we call the microfluidic paper-based electrochemical devices, µPEDs). The µPEDs comprise paper-based microfluidic channels patterned by photolithography or wax printing, and electrodes screen-printed from conducting inks (e.g., carbon or Ag/AgCl). We demonstrated that the µPEDs are capable of quantifying the concentrations of various analytes (e.g., heavy-metal ions and glucose) in aqueous solutions. This low-cost analytical device should be useful for applications in public health, environmental monitoring, and the developing world.

Graphical abstract: Electrochemical sensing in paper-based microfluidic devices

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Article information


Submitted
19 Aug 2009
Accepted
04 Nov 2009
First published
03 Dec 2009

Lab Chip, 2010,10, 477-483
Article type
Paper

Electrochemical sensing in paper-based microfluidic devices

Z. Nie, C. A. Nijhuis, J. Gong, X. Chen, A. Kumachev, A. W. Martinez, M. Narovlyansky and G. M. Whitesides, Lab Chip, 2010, 10, 477
DOI: 10.1039/B917150A

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