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

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47 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)641-643
Number of pages3
JournalLab on a Chip - Miniaturisation for Chemistry and Biology
Volume7
Issue number5
DOIs
StatePublished - 2007
Externally publishedYes

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Molds
Microchannels
Fungi
Polydimethylsiloxane
Plasmas
Fabrication
Water
Photolithography
Lab-On-A-Chip Devices
Molding
Lithography
Rapid prototyping
Photoresists
Microfluidics
Costs and Cost Analysis
Equipment and Supplies
Liquids
baysilon
Costs

ASJC Scopus subject areas

  • Clinical Biochemistry

Cite this

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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.",
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