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Differential inertial focusing of particles in curved low-aspect-ratio microchannels
BioMEMS Resource Center, Center for Engineering in Medicine and Surgical Services, Massachusetts General Hospital.
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2009 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 11, 075025- p.Article in journal (Refereed) Published
Abstract [en]

Microfluidic-based manipulation of particles is of great interest due to the insight it provides into the physics of hydrodynamic forces. Here, we study a particle-size-dependent phenomenon based on differential inertial focusing that utilizes the flow characteristics of curved, low aspect ratio (channel width >> height), microfluidic channels. We report the emergence of two focusing points along the height of the channel (z-plane), where different sized particles are focused and ordered in evenly spaced trains at correspondingly different lateral positions within the channel cross-section. We applied the system for continuous ordering and separation of suspension particles.

Place, publisher, year, edition, pages
2009. Vol. 11, 075025- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:kth:diva-89921DOI: 10.1088/1367-2630/11/7/075025ISI: 000268699200012OAI: oai:DiVA.org:kth-89921DiVA: diva2:503991
Note
QC 20120312Available from: 2012-02-17 Created: 2012-02-17 Last updated: 2017-12-07Bibliographically approved

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