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Updated: Jun 24, 2026

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles
Published on: March 6, 2016
Axisymmetric flow focusing of particles in a single microchannel
1Institute of Advanced Machinery and Design, Seoul National University, Seoul 151-744, Korea. ywkim77@snu.ac.kr
Abstract:
Axisymmetric flow focusing of particles in a single microchannel has been proposed on the basis of the observation that a particle migrates toward the tube axis when it lags behind the fluid flow, which is supported by demonstrating that more than 90% of the particles are tightly focused within three times the particle diameter when negative electrophoretic mobility is imposed on the particles.
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