Epoxy coating to prolog actuation time in degas-driven PDM micropums

To enhance the portability of Lab-on-a-Chip technology, avoiding bulky electronic flow control systems is crucial. Self-powered microfluidics can significantly improve portability by eliminating the need for electronic components. Traditionally, self-powered microsystems handle small fluid volumes f...

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Autores: Álvarez Braña, Yara, Benavent Claró, Andreu, Benito López, Fernando, Hernández Machado, Aurora, Basabe Desmonts, Lourdes
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/227987
Acesso em linha:https://hdl.handle.net/2445/227987
Access Level:acceso abierto
Palavra-chave:Microprocessadors
Microelectrònica
Microprocessors
Microelectronics
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spelling Epoxy coating to prolog actuation time in degas-driven PDM micropumsÁlvarez Braña, YaraBenavent Claró, AndreuBenito López, FernandoHernández Machado, AuroraBasabe Desmonts, LourdesMicroprocessadorsMicroelectrònicaMicroprocessorsMicroelectronicsTo enhance the portability of Lab-on-a-Chip technology, avoiding bulky electronic flow control systems is crucial. Self-powered microfluidics can significantly improve portability by eliminating the need for electronic components. Traditionally, self-powered microsystems handle small fluid volumes for up to one or two hours. However, many experiments, such as cell culture or real-time biomarker detection assays, require flow control for longer periods. In this study, we demonstrate that polymeric micropumps can provide self-powered flow control for intermediate durations, ranging from several to more than 10 hours. By monitoring the fluid front dynamics of a solution flowing through a microchannel over 1.5 meters long, we developed calibration curves for various micropump types. Our findings reveal that the pump's actuation time is influenced by degassing time, and effective surface area. Using these calibration curves, we compare mathematical models to predict flow rates and actuation times, facilitating the design of customized self-powered microsystems for both short and long-term applications. Epoxy-coated PDMS pumps represent a notable example of a long-operating self-powered microsystem, which holds significant potential for applications requiring controlled flow over extended periods.Royal Society of Chemistry2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/227987Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1039/D5SM00964BSoft Matter, 2026, vol. 22, num.7https://doi.org/10.1039/D5SM00964Bcc by-nc (c) Y Alvarez-Braña et al., 2026http://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2279872026-05-27T06:46:51Z
dc.title.none.fl_str_mv Epoxy coating to prolog actuation time in degas-driven PDM micropums
title Epoxy coating to prolog actuation time in degas-driven PDM micropums
spellingShingle Epoxy coating to prolog actuation time in degas-driven PDM micropums
Álvarez Braña, Yara
Microprocessadors
Microelectrònica
Microprocessors
Microelectronics
title_short Epoxy coating to prolog actuation time in degas-driven PDM micropums
title_full Epoxy coating to prolog actuation time in degas-driven PDM micropums
title_fullStr Epoxy coating to prolog actuation time in degas-driven PDM micropums
title_full_unstemmed Epoxy coating to prolog actuation time in degas-driven PDM micropums
title_sort Epoxy coating to prolog actuation time in degas-driven PDM micropums
dc.creator.none.fl_str_mv Álvarez Braña, Yara
Benavent Claró, Andreu
Benito López, Fernando
Hernández Machado, Aurora
Basabe Desmonts, Lourdes
author Álvarez Braña, Yara
author_facet Álvarez Braña, Yara
Benavent Claró, Andreu
Benito López, Fernando
Hernández Machado, Aurora
Basabe Desmonts, Lourdes
author_role author
author2 Benavent Claró, Andreu
Benito López, Fernando
Hernández Machado, Aurora
Basabe Desmonts, Lourdes
author2_role author
author
author
author
dc.subject.none.fl_str_mv Microprocessadors
Microelectrònica
Microprocessors
Microelectronics
topic Microprocessadors
Microelectrònica
Microprocessors
Microelectronics
description To enhance the portability of Lab-on-a-Chip technology, avoiding bulky electronic flow control systems is crucial. Self-powered microfluidics can significantly improve portability by eliminating the need for electronic components. Traditionally, self-powered microsystems handle small fluid volumes for up to one or two hours. However, many experiments, such as cell culture or real-time biomarker detection assays, require flow control for longer periods. In this study, we demonstrate that polymeric micropumps can provide self-powered flow control for intermediate durations, ranging from several to more than 10 hours. By monitoring the fluid front dynamics of a solution flowing through a microchannel over 1.5 meters long, we developed calibration curves for various micropump types. Our findings reveal that the pump's actuation time is influenced by degassing time, and effective surface area. Using these calibration curves, we compare mathematical models to predict flow rates and actuation times, facilitating the design of customized self-powered microsystems for both short and long-term applications. Epoxy-coated PDMS pumps represent a notable example of a long-operating self-powered microsystem, which holds significant potential for applications requiring controlled flow over extended periods.
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/227987
url https://hdl.handle.net/2445/227987
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1039/D5SM00964B
Soft Matter, 2026, vol. 22, num.7
https://doi.org/10.1039/D5SM00964B
dc.rights.none.fl_str_mv cc by-nc (c) Y Alvarez-Braña et al., 2026
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc by-nc (c) Y Alvarez-Braña et al., 2026
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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