Rapid prototyping of microfluidic channel using atmospheric pressure plasma jet

Ya Shen Yu, Mu Chien Wu, Jong Shinn Wu, Chia-Hung Tsai*

*Corresponding author for this work

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

3 Scopus citations

Abstract

A method for rapidly fabricating a microfluidic system using a plasma jet is proposed in this work. Plasma is known for being able to modify the hydrophilicity of a surface. We extended such a feature to treating only local regions with plasma and used it to create micro-scale fluidic system on the surface of a chip. Instead of a traditional low-pressure plasma, which requires a vacuum chamber, an atmospheric-pressure plasma jet is utilized here. According to the results, the channel width of 533 μm was achieved by downsizing the jet nozzle to 600 μm. It is also found that the channel width is directly related to the duration of plasma treatment. To ensure the feasibility of the proposed method, the aging of surface hydrophilicity was investigated. Finally, an application of microfluidic mixing chip was fabricated using the proposed method.

Original languageEnglish
Title of host publication22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
PublisherChemical and Biological Microsystems Society
Pages551-554
Number of pages4
ISBN (Electronic)9781510897571
StatePublished - Nov 2018
Event22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 - Kaohsiung, Taiwan
Duration: 11 Nov 201815 Nov 2018

Publication series

Name22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
Volume1

Conference

Conference22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
Country/TerritoryTaiwan
CityKaohsiung
Period11/11/1815/11/18

Keywords

  • Atmospheric-pressure plasma jet
  • Hydrophilicity
  • Microfluidics

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