Issue 5, 2007
From the journal:

Lab on a Chip

Rapid fabrication of microchannels using microscale plasma activated templating (μPLAT) generated water molds†‡

Shih-hui Chao,*ab   Robert Carlsonb  and  Deirdre R. Meldrumab  

* Corresponding authors

a Microscale Life Sciences Center, University of Washington, Seattle, USA
E-mail: joechao@u.washington.edu
Fax: +1-206-221-5264
Tel: +1-206-685-6885

b Department of Electrical Engineering, University of Washington, Seattle, USA

Abstract

Poly(dimethylsiloxane) (PDMS) is a common material used in fabricating microfluidic devices. The predominant PDMS fabrication method, soft lithography, relies on photolithography for fabrication of micropatterned molds. In this technical note, we report an alternative molding technique using microscale PLasma Activated Templating (μPLAT). The use of photoresist in soft lithography is replaced by patterned water droplets created using μPLAT. When liquid PDMS encapsulates patterned water and then solidifies, the cavities occupied by water become structures such as microchannels. Using this method, device fabrication is less time consuming, more cost efficient and flexible, and ideal for rapid prototyping. An additional important feature of the water-molding process is that it yields structural profiles that are difficult to achieve using photolithography.

Graphical abstract: Rapid fabrication of microchannels using microscale plasma activated templating (μPLAT) generated water molds

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Article information

DOI
https://doi.org/10.1039/B618269K
Article type
Technical Note
Submitted
14 Dec 2006
Accepted
07 Feb 2007
First published
05 Apr 2007

Lab Chip, 2007,7, 641-643

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Rapid fabrication of microchannels using microscale plasma activated templating (μPLAT) generated water molds

S. Chao, R. Carlson and D. R. Meldrum, Lab Chip, 2007, 7, 641 DOI: 10.1039/B618269K

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