Defocusing nano particle image velocimetry for nanochannel flows

Kazuki Shibata, Yutaka Kazoe, Kazuma Mawatari, Takehiko Kitamori

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

Abstract

We developed a novel measurement method of flow velocity distribution in nanochannels exploiting defocusing nanoparticle image. A 20 nm spatial resolution of detecting nanoparticle position using defocusing image with spherical aberration was verified, and from nanoparticle motion, profile of pressure-driven flow in a 400 nm nanochannel was successfully obtained. This method can be used for single molecule tracking with bright signal intensity, and will contribute to understanding of nanoscale molecular behavior and its relationship with continuum fluid.

Original languageEnglish
Title of host publication21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017
PublisherChemical and Biological Microsystems Society
Pages261-262
Number of pages2
ISBN (Electronic)9780692941836
Publication statusPublished - 2020 Jan 1
Externally publishedYes
Event21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 - Savannah, United States
Duration: 2017 Oct 222017 Oct 26

Publication series

Name21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017

Conference

Conference21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017
CountryUnited States
CitySavannah
Period17/10/2217/10/26

Keywords

  • Flow
  • Nanochannel
  • Particle tracking
  • Velocimetry

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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  • Cite this

    Shibata, K., Kazoe, Y., Mawatari, K., & Kitamori, T. (2020). Defocusing nano particle image velocimetry for nanochannel flows. In 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 (pp. 261-262). (21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017). Chemical and Biological Microsystems Society.