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Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels

[Image: see text] We numerically study the translocation dynamics of double emulsion drops with multiple close-packed inner droplets within constrictions. Such liquid architectures, which we refer to as HIPdEs (high-internal phase double emulsions), consist of a ternary fluid, in which monodisperse...

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Autores principales: Montessori, Andrea, Tiribocchi, Adriano, Bogdan, Michał, Bonaccorso, Fabio, Lauricella, Marco, Guzowski, Jan, Succi, Sauro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8503876/
https://www.ncbi.nlm.nih.gov/pubmed/34291636
http://dx.doi.org/10.1021/acs.langmuir.1c01026
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author Montessori, Andrea
Tiribocchi, Adriano
Bogdan, Michał
Bonaccorso, Fabio
Lauricella, Marco
Guzowski, Jan
Succi, Sauro
author_facet Montessori, Andrea
Tiribocchi, Adriano
Bogdan, Michał
Bonaccorso, Fabio
Lauricella, Marco
Guzowski, Jan
Succi, Sauro
author_sort Montessori, Andrea
collection PubMed
description [Image: see text] We numerically study the translocation dynamics of double emulsion drops with multiple close-packed inner droplets within constrictions. Such liquid architectures, which we refer to as HIPdEs (high-internal phase double emulsions), consist of a ternary fluid, in which monodisperse droplets are encapsulated within a larger drop in turn immersed in a bulk fluid. Extensive two-dimensional lattice Boltzmann simulations show that if the area fraction of the internal drops is close to the packing fraction limit of hard spheres and the height of the channel is much smaller than the typical size of the emulsion, the crossing yields permanent shape deformations persistent over long periods of time. Morphological changes and rheological response are quantitatively assessed in terms of the structure of the velocity field, circularity of the emulsion, and rate of energy dissipated by viscous forces. Our results may be used to improve the design of soft mesoscale porous materials, which employ HIPdEs as templates for tissue engineering applications.
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spelling pubmed-85038762021-10-12 Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels Montessori, Andrea Tiribocchi, Adriano Bogdan, Michał Bonaccorso, Fabio Lauricella, Marco Guzowski, Jan Succi, Sauro Langmuir [Image: see text] We numerically study the translocation dynamics of double emulsion drops with multiple close-packed inner droplets within constrictions. Such liquid architectures, which we refer to as HIPdEs (high-internal phase double emulsions), consist of a ternary fluid, in which monodisperse droplets are encapsulated within a larger drop in turn immersed in a bulk fluid. Extensive two-dimensional lattice Boltzmann simulations show that if the area fraction of the internal drops is close to the packing fraction limit of hard spheres and the height of the channel is much smaller than the typical size of the emulsion, the crossing yields permanent shape deformations persistent over long periods of time. Morphological changes and rheological response are quantitatively assessed in terms of the structure of the velocity field, circularity of the emulsion, and rate of energy dissipated by viscous forces. Our results may be used to improve the design of soft mesoscale porous materials, which employ HIPdEs as templates for tissue engineering applications. American Chemical Society 2021-07-22 2021-08-03 /pmc/articles/PMC8503876/ /pubmed/34291636 http://dx.doi.org/10.1021/acs.langmuir.1c01026 Text en © 2021 American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Montessori, Andrea
Tiribocchi, Adriano
Bogdan, Michał
Bonaccorso, Fabio
Lauricella, Marco
Guzowski, Jan
Succi, Sauro
Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title_full Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title_fullStr Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title_full_unstemmed Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title_short Translocation Dynamics of High-Internal Phase Double Emulsions in Narrow Channels
title_sort translocation dynamics of high-internal phase double emulsions in narrow channels
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8503876/
https://www.ncbi.nlm.nih.gov/pubmed/34291636
http://dx.doi.org/10.1021/acs.langmuir.1c01026
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