A particle tracking velocimetry for extended nanochannel flows using evanescent wave illumination

Y. Kazoe, K. Iseki, K. Mawatari, T. Kitamori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Understanding fluid flows in extended nanospace (10-1000 nm) is important for novel nanofluidic devices. Considering the fluid slip and unique liquid properties with heterogeneous liquid structure reported previously, extended- nanoscale fluid dynamics with molecular picture is required. Here, we developed an evanescent wave-based particle tracking velocimetry for extended nanochannel flows. The velocity distribution of pressure-driven flows in a 410 nm fused-silica channel was successfully measured. The results indicated slip velocities even in hydrophilic channel. We suggest a possibility for appearance of moelculear behavior in the fluid near the wall within 100-molecular thickness, which is close to the limit of continuum regime.

Original languageEnglish
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PublisherChemical and Biological Microsystems Society
Pages104-106
Number of pages3
ISBN (Print)9781632666246
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: 2013 Oct 272013 Oct 31

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume1

Other

Other17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
CountryGermany
CityFreiburg
Period13/10/2713/10/31

Keywords

  • Evanescent wave
  • Flow
  • Nanochannel
  • Particle tracking

ASJC Scopus subject areas

  • Bioengineering

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  • Cite this

    Kazoe, Y., Iseki, K., Mawatari, K., & Kitamori, T. (2013). A particle tracking velocimetry for extended nanochannel flows using evanescent wave illumination. In 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 (pp. 104-106). (17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013; Vol. 1). Chemical and Biological Microsystems Society.