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Monolithic microfabricated valves and pumps by multilayer soft lithography
Author(s): Unger MA, Chou HP, Thorsen T, Scherer A, Quake SR
Source: SCIENCE    Volume: 288    Issue: 5463    Pages: 113-116    Published: APR 7 2000  
Times Cited: 940     References: 35     
Abstract: Soft Lithography is an alternative to silicon-based micromachining that uses replica molding of nontraditional elastomeric materials to fabricate stamps and microfluidic channels. We describe here an extension to the soft Lithography. paradigm. multilayer soft lithography, with which devices consisting of multiple Layers may be fabricated from soft materials. We used this technique to build active microfluidic systems containing on-off valves, switching valves, and pumps entirely out of elastomer. The softness of these materials allows the device areas to be reduced by more than two orders of magnitude compared with silicon-based devices. The other advantages of soft Lithography, such as rapid prototyping, ease of fabrication, and biocompatibility, are retained.
Document Type: Article
Language: English
Reprint Address: Quake, SR (reprint author), CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA
Addresses:
1. CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA
Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
Subject Category: Multidisciplinary Sciences
IDS Number: 302VT
ISSN: 0036-8075
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