Effect of electric double layer on near-wall ph in microfluidic device measured by nano-LIF

R. Kuriyama, Y. Tanaka, S. Akiyama, Y. Sato

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The present study experimentally investigated the effect of electric double layer (EDL) on pH in the vicinity of microchannel wall. Nanoscale laser induced fluorescence (nano-LIF) imaging technique was utilized for near-wall pH measurement. The fluorescent dye whose intensity depends on pH value was excited by the evanescent wave and the intensity was converted to pH value via a calibration curve. This technique was first applied to the steady flow field and additionally to the unsteady mixing flow field. The obtained results indicate that the near-wall pH distribution is totally lower than bulk pH due to the EDL.

本文言語English
ホスト出版物のタイトル15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
ページ215-217
ページ数3
出版ステータスPublished - 2011 12月 1
イベント15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 - Seattle, WA, United States
継続期間: 2011 10月 22011 10月 6

出版物シリーズ

名前15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
1

Other

Other15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
国/地域United States
CitySeattle, WA
Period11/10/211/10/6

ASJC Scopus subject areas

  • 制御およびシステム工学

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