Author:
Bakhtiari Amirabas,Kähler Christian J.
Abstract
AbstractWe present an advanced single-particle positioning technique that uses ultrasound-driven microstreaming induced by two microbubbles to position microparticles across the width of a microchannel or to direct them to desired exits of a Y-shaped microchannel. An open-loop control algorithm has been devised to facilitate the automatic detection, tracking, and precise positioning of microparticles in the presence of two microbubbles. Our control system is capable of performing particle positioning in multiple steps, individually for each microparticle, with arbitrary starting positions without requiring prior particle focusing or flow conditioning. We have also evaluated the accuracy enhancement of particle positioning using two microbubbles, in comparison to the system’s results using only one microbubble.
Funder
Universität der Bundeswehr München
Publisher
Springer Science and Business Media LLC
Subject
Materials Chemistry,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
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