Microfluidic centrifuge of nano-particles using rotating flow in a microchamber

Jung Hwan Lee, Jin Bong Ha, Yeon Kyeung Bahk, Sung Hwan Yoon, Takahiro Arakawa, Jong Soo Ko, Bo Sung Shin, Shuich Shoji, Jeung Sang Go*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


This paper presents the centrifugation of the nano-particles using the rotating flow in the microchamber. The feasibility of the microfluidic centrifuge was demonstrated numerically and experimentally. The centrifugation of the nano-particles of 300 and 500 nm was visualized by using a high-speed CCD camera and a micro-PIV. In addition, its performance was characterized quantitatively. The experimental results of the mechanical contact-free microfluidic centrifuge showed the same physical phenomena with the conventional one even in its small size. Also, a new finding was obtained that the transient motion influenced the stable operation of the microfluidic centrifuge.

Original languageEnglish
Pages (from-to)525-530
Number of pages6
JournalSensors and Actuators, B: Chemical
Issue number2
Publication statusPublished - 2008 Jun 16


  • Centrifuge
  • Micro-PIV
  • Microfluidic
  • Nano-particle
  • Rotational flow

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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