Understanding Wax Printing: A Simple Micropatterning Process for Paper-Based Microfluidics

This technical note describes a detailed study on wax printing, a simple and inexpensive method for fabricating microfluidic devices in paper using a commercially available printer and hot plate. The printer prints patterns of solid wax on the surface of the paper, and the hot plate melts the wax so...

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Veröffentlicht in:Analytical chemistry (Washington) 2009-08, Vol.81 (16), p.7091-7095
Hauptverfasser: Carrilho, Emanuel, Martinez, Andres W, Whitesides, George M
Format: Artikel
Sprache:eng
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Zusammenfassung:This technical note describes a detailed study on wax printing, a simple and inexpensive method for fabricating microfluidic devices in paper using a commercially available printer and hot plate. The printer prints patterns of solid wax on the surface of the paper, and the hot plate melts the wax so that it penetrates the full thickness of the paper. This process creates complete hydrophobic barriers in paper that define hydrophilic channels, fluid reservoirs, and reaction zones. The design of each device was based on a simple equation that accounts for the spreading of molten wax in paper.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac901071p