Cacace, T., Paturzo, M., Memmolo, P., Vassalli, M. , Ferraro, P., Fraldi, M. and Mensitieri, G. (2017) Digital holography as 3D tracking tool for assessing acoustophoretic particle manipulation. Optics Express, 25(15), pp. 17746-17752. (doi: 10.1364/OE.25.017746) (PMID:28789266)
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Abstract
The integration of digital holography (DH) imaging and the acoustic manipulation of micro-particles in a microfluidic environment is investigated. The ability of DH to provide efficient 3D tracking of particles inside a microfluidic channel is exploited to measure the position of multiple objects moving under the effect of stationary ultrasound pressure fields. The axial displacement provides a direct verification of the numerically computed positions of the standing wave’s node, while the particles’ transversal movement highlights the presence of nodes in the planar direction. Moreover, DH is used to follow the aggregation dynamics of trapped spheres in such nodes by using aggregation rate metrics.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Vassalli, Professor Massimo |
Authors: | Cacace, T., Paturzo, M., Memmolo, P., Vassalli, M., Ferraro, P., Fraldi, M., and Mensitieri, G. |
College/School: | College of Science and Engineering > School of Engineering > Biomedical Engineering |
Journal Name: | Optics Express |
Publisher: | Optical Society of America |
ISSN: | 1094-4087 |
ISSN (Online): | 1094-4087 |
Published Online: | 14 July 2017 |
Copyright Holders: | Copyright © 2017 Optical Society of America |
First Published: | First published in Optics Express |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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