Effect of wetting on capillary pumping in microchannels

We investigate capillary pumping in microchannels both experimentally and numerically. Putting two droplets of different sizes at the in/outlet of a microchannel, there will in general be a flow from the smaller droplet to the larger one due to the Laplace pressure difference. We show that an unusua...

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Detalles Bibliográficos
Autores principales: Javadi, Arman, Habibi, Mehdi, Taheri, Fereshte Samadi, Moulinet, Sébastien, Bonn, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3593213/
https://www.ncbi.nlm.nih.gov/pubmed/23475181
http://dx.doi.org/10.1038/srep01412
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author Javadi, Arman
Habibi, Mehdi
Taheri, Fereshte Samadi
Moulinet, Sébastien
Bonn, Daniel
author_facet Javadi, Arman
Habibi, Mehdi
Taheri, Fereshte Samadi
Moulinet, Sébastien
Bonn, Daniel
author_sort Javadi, Arman
collection PubMed
description We investigate capillary pumping in microchannels both experimentally and numerically. Putting two droplets of different sizes at the in/outlet of a microchannel, there will in general be a flow from the smaller droplet to the larger one due to the Laplace pressure difference. We show that an unusual flow from a larger droplet into a smaller one is possible by manipulating the wetting properties, notably the contact line pinning. In addition, we propose a way to actively control the flow by electrowetting.
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spelling pubmed-35932132013-03-11 Effect of wetting on capillary pumping in microchannels Javadi, Arman Habibi, Mehdi Taheri, Fereshte Samadi Moulinet, Sébastien Bonn, Daniel Sci Rep Article We investigate capillary pumping in microchannels both experimentally and numerically. Putting two droplets of different sizes at the in/outlet of a microchannel, there will in general be a flow from the smaller droplet to the larger one due to the Laplace pressure difference. We show that an unusual flow from a larger droplet into a smaller one is possible by manipulating the wetting properties, notably the contact line pinning. In addition, we propose a way to actively control the flow by electrowetting. Nature Publishing Group 2013-03-11 /pmc/articles/PMC3593213/ /pubmed/23475181 http://dx.doi.org/10.1038/srep01412 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
spellingShingle Article
Javadi, Arman
Habibi, Mehdi
Taheri, Fereshte Samadi
Moulinet, Sébastien
Bonn, Daniel
Effect of wetting on capillary pumping in microchannels
title Effect of wetting on capillary pumping in microchannels
title_full Effect of wetting on capillary pumping in microchannels
title_fullStr Effect of wetting on capillary pumping in microchannels
title_full_unstemmed Effect of wetting on capillary pumping in microchannels
title_short Effect of wetting on capillary pumping in microchannels
title_sort effect of wetting on capillary pumping in microchannels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3593213/
https://www.ncbi.nlm.nih.gov/pubmed/23475181
http://dx.doi.org/10.1038/srep01412
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