Effects of surface modification on electroosmotic flow and zeta potential in microchannel

Seiichi Sasaki, Yohei Sato

Research output: Contribution to conferencePaper

Abstract

Surface modifications on a poly(dimethylsiloxane) (PDMS) microchannel were conducted by O2 plasma treatment, silanization with silane coupling agent and PEGylation with poly(ethyleneglycol) (PEG) sequentially. The effects were quantitatively examined by measuring the electroosmotic flow velocity using micron-resolution particle image velocimetry (micro-PIV) and the zeta-potential. The electroosmotic flow velocity and the zeta-potential were changed significantly due to the surface compositions.

Original languageEnglish
Pages239-241
Number of pages3
Publication statusPublished - 2006 Jan 1
Event10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 - Tokyo, Japan
Duration: 2006 Nov 52006 Nov 9

Other

Other10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006
CountryJapan
CityTokyo
Period06/11/506/11/9

Keywords

  • Electroosmotic flow
  • Micro-PIV
  • Surface Modification
  • Zeta-potential

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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  • Cite this

    Sasaki, S., & Sato, Y. (2006). Effects of surface modification on electroosmotic flow and zeta potential in microchannel. 239-241. Paper presented at 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, Tokyo, Japan.