Focusing of microparticles at low reynolds numbers

Tianlong Zhang, Yaxiaer Yalikun*, Misuzu Namoto, Kazunori Okano, Yo Tanaka, Ming Li*, Yoichiroh Hosokawa

*Corresponding author for this work

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

Abstract

Microfluidic focusing of particles, control over the positions of particles in a focused stream, may serve as a necessary step for the downstream processing, such as detection, counting and separation. Here, we demonstrated the focusing of polystyrene particles (PS) and live cells at low Reynolds numbers (Re < 0.2) in a microfluidic channel with open v-shaped microstructures achieved by femtosecond pulse (fs) laser micromachining. The developed microfluidic chip is hoped to be integrated with detection components, such as contact imaging and fluorescence lifetime-resolved imaging, where particle focusing at a relatively low flow rate is required.

Original languageEnglish
Title of host publication24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Place of PublicationSan Diego, California
PublisherChemical and Biological Microsystems Society
Pages336-337
Number of pages2
ISBN (Electronic)9781733419017
Publication statusPublished - 2020
Event24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020 - Virtual, Online
Duration: 4 Oct 20209 Oct 2020

Conference

Conference24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020
CityVirtual, Online
Period4/10/209/10/20

Keywords

  • Focusing
  • Low Reynolds numbers
  • Femtosecond pulse laser
  • Micromachining

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