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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Carrilho, Emanuel [1, 2] ; Martinez, Andres W. [2] ; Whitesides, George M. [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13566590 Sao Carlos, SP - Brazil
[2] Harvard Univ, Dept Chem & Biol Chem, Cambridge, MA 02138 - USA
Total Affiliations: 2
Document type: Journal article
Source: Analytical Chemistry; v. 81, n. 16, p. 7091-7095, AUG 15 2009.
Web of Science Citations: 813
Abstract

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. (AU)