Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4866045
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Funding
- Pioneer Research Center Program through the National Research Foundation of Korea
- Ministry of Science, ICT & Future Planning [2013M3C1A3064777]
- National Research Foundation of Korea [2013K2A1A2053078]
- National Research Foundation of Korea [2013M3C1A3064777] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper demonstrates a method of modulating hydrophoretic focusing and sorting by inertial forces in a microfluidic device. At low Reynolds number (Re), hydrophoresis enables size-based sorting by generating specific equilibrium positions for differently sized particles. As increasing Re, hydrophoresis becomes coupled with inertial effects that bias the equilibrium positions to create a narrow focusing stream. Using this method, we achieved both size-based sorting and sheathless focusing in a device. (C) 2014 AIP Publishing LLC.
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