Displacement of particles in microfluidics by laser-generated tandem bubbles.
Abstract
The dynamic interaction between laser-generated tandem bubble and individual polystyrene
particles of 2 and 10 μm in diameter is studied in a microfluidic channel (25 μm height)
by high-speed imaging and particle image velocimetry. The asymmetric collapse of the
tandem bubble produces a pair of microjets and associated long-lasting vortices that
can propel a single particle to a maximum velocity of 1.4 m∕s in 30 μs after the bubble
collapse with a resultant directional displacement up to 60 μm in 150 μs. This method
may be useful for high-throughput cell sorting in microfluidic devices.
Type
Journal articlePermalink
https://hdl.handle.net/10161/3246Published Version (Please cite this version)
10.1063/1.3511538Publication Info
(2010). Displacement of particles in microfluidics by laser-generated tandem bubbles. Appl Phys Lett, 97(18). pp. 183701. 10.1063/1.3511538. Retrieved from https://hdl.handle.net/10161/3246.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
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Show full item recordScholars@Duke
Pei Zhong
Professor in the Department of Mechanical Engineering and Materials Science
My research focuses on engineering and technology development with applications in
the non-invasive or minimally invasive treatment of kidney stone disease via shock
wave and laser lithotripsy, high-intensity focused ultrasound (HIFU) and immunotherapy
for cancer treatment, acoustic and optical cavitation, and ultrasound neuromodulation
via sonogenetics.
We are taking an integrated and translational approach that combines fundamental research
with engineering and applied technol
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