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Lab Chip. 2015 Dec 7;15(23):4461-6. doi: 10.1039/c5lc01115a.

Two-ply channels for faster wicking in paper-based microfluidic devices.

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Department of Chemistry & Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93401, USA.
Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.


This article describes the development of porous two-ply channels for paper-based microfluidic devices that wick fluids significantly faster than conventional, porous, single-ply channels. The two-ply channels were made by stacking two single-ply channels on top of each other and were fabricated entirely out of paper, wax and toner using two commercially available printers, a convection oven and a thermal laminator. The wicking in paper-based channels was studied and modeled using a modified Lucas-Washburn equation to account for the effect of evaporation, and a paper-based titration device incorporating two-ply channels was demonstrated.

[Indexed for MEDLINE]

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