Measurement of ion diffusivity at the electrolyte-glass interface by evanescent wave molecular tagging

Hiroki Fukumura, Mitsuhisa Ichiyanagi, Yohei Sato

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

A new measurement technique for ion velocity and diffusivity in the vicinity of interface is proposed for investigation of transport phenomena near the wall surface. This technique, which is called evanescent wave molecular tagging, utilizes caged fluorescent dye and evanescent wave illumination. Evanescent wave molecular tagging was performed in stationary flow and electroosmotic flow, and compared to molecular tagging with epi-fluorescent illumination. The ion diffusion near the wall surface can be also affected by the velocity gradient of the flow.

Original languageEnglish
Pages801-803
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

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Keywords

  • Caged fluorescent dye
  • Electric double layer
  • Evanescent wave
  • Ion diffusion
  • Nanoscale

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

Cite this

Fukumura, H., Ichiyanagi, M., & Sato, Y. (2006). Measurement of ion diffusivity at the electrolyte-glass interface by evanescent wave molecular tagging. 801-803. Paper presented at 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, Tokyo, Japan.