High-resolution Dean Flow Fractionation (HiDFF): A novel dean migration phenomenon for small microparticle separation

Hui Min Tay, Kah Kee Tan, Sharad Kharel, Say Chye Joachim Loo, Han Wei Hou*

*Corresponding author for this work

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

Abstract

Inertial focusing of small microparticles (< 1-2 μm) in microfluidics remains a technical challenge as channel dimensions have to be scaled down significantly to experience sufficient inertial forces (FL) for lateral migration. Herein, we introduce a novel Dean migration phenomenon in spiral microchannel, termed as High-resolution Dean Flow Fractionation (HiDFF), for high throughput separation of small microparticles based on differential Dean migration profiles. Efficient separation of 1-3 μm beads mixture was demonstrated using HiDFF. The developed technology was used to size-fractionate different small biological components, including bacteria and drug-loaded nanoparticles (NPs) with superior resolution (∼1 μm) and throughput (∼100 μlmin-1).

Original languageEnglish
Title of host publication20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016
PublisherChemical and Biological Microsystems Society
Pages1519-1520
Number of pages2
ISBN (Electronic)9780979806490
Publication statusPublished - 2016
Externally publishedYes
Event20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016 - Dublin, Ireland
Duration: Oct 9 2016Oct 13 2016

Publication series

Name20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016

Conference

Conference20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016
Country/TerritoryIreland
CityDublin
Period10/9/1610/13/16

ASJC Scopus Subject Areas

  • Control and Systems Engineering

Keywords

  • Cell separation
  • Dean Flow
  • Inertial microfluidics
  • Nanoparticles

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