Differential inertial focusing of particles in curved low-aspect-ratio microchannels
2009 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 11, 075025- p.Article in journal (Refereed) Published
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.
IdentifiersURN: urn:nbn:se:kth:diva-89921DOI: 10.1088/1367-2630/11/7/075025ISI: 000268699200012OAI: oai:DiVA.org:kth-89921DiVA: diva2:503991
QC 201203122012-02-172012-02-172012-03-12Bibliographically approved