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 publicationMicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages336-337
Number of pages2
ISBN (Electronic)9781733419017
Publication statusAccepted/In press - 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

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

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