Surface treatments of soft molds for high aspect ratio molding of poly-PEGDA

Daniela Castro, David Conchouso Gonzales, Yiqiang Fan, Ian Grant Foulds

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper looks at surface treatments for Polydimethylsiloxane (PDMS) soft molds for cured Poly(ethylene) glycol diacrylate (Poly-PEGDA) to increase reliability of mold filling and decreasing mold permeability. Contact angle of uncured PEGDA on the different mold treatments (deep UV exposure, oxygen plasma and Parylene-C coating) was measured. Out of these, Parylene-C showed to have a good compromise between improved mold filling and durability. Our method allows for the creation of high aspect ratio structures (in excess of 10:1) as well as enclosed microfluidic channels.

Original languageEnglish (US)
Title of host publicationProceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012
PublisherChemical and Biological Microsystems Society
Pages1231-1233
Number of pages3
ISBN (Print)9780979806452
StatePublished - Jan 1 2012
Event16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012 - Okinawa, Japan
Duration: Oct 28 2012Nov 1 2012

Publication series

NameProceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012

Other

Other16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012
CountryJapan
CityOkinawa
Period10/28/1211/1/12

Keywords

  • High aspect ratio
  • PDMS
  • Parylene C
  • Poly-PEGDA

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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