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Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics

Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane micro...

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Autores principales: Na, Wonwhi, Kim, Jinsung, Lee, Hoyoon, Yoo, Byeongmin, Shin, Sehyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AIP Publishing LLC 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5812741/
https://www.ncbi.nlm.nih.gov/pubmed/29531636
http://dx.doi.org/10.1063/1.5017902
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author Na, Wonwhi
Kim, Jinsung
Lee, Hoyoon
Yoo, Byeongmin
Shin, Sehyun
author_facet Na, Wonwhi
Kim, Jinsung
Lee, Hoyoon
Yoo, Byeongmin
Shin, Sehyun
author_sort Na, Wonwhi
collection PubMed
description Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane microfluidic system. The pump consists of a rectangular ferromagnetic bar and a fan-shaped chamber with an inlet and outlet. Through various experiments, the net flow was examined as a function of chamber shape, inlet and outlet channel location, rotating center of the magnet, and rotational speed. Using high-speed camera and image analysis, the net flow was found to be generated by the fluid inertia associated with the varying reciprocating speeds of the bar inside the fan-shaped chamber. Depending on the locations of the inlet and outlet, the cycle time taken to circulate the loop was significantly reduced from 200 to 4 s. The flow rate of the micropump ranges from 48–225 μl/min, which is proportional to the rotational speed of the magnet (150–3000 rpm). Using a fluttering bar-driven inertial micropump, the microfluidic system not only provides improved mixing, but also eliminates certain problems associated with external tubing and connection.
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spelling pubmed-58127412018-03-12 Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics Na, Wonwhi Kim, Jinsung Lee, Hoyoon Yoo, Byeongmin Shin, Sehyun Biomicrofluidics Regular Articles Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane microfluidic system. The pump consists of a rectangular ferromagnetic bar and a fan-shaped chamber with an inlet and outlet. Through various experiments, the net flow was examined as a function of chamber shape, inlet and outlet channel location, rotating center of the magnet, and rotational speed. Using high-speed camera and image analysis, the net flow was found to be generated by the fluid inertia associated with the varying reciprocating speeds of the bar inside the fan-shaped chamber. Depending on the locations of the inlet and outlet, the cycle time taken to circulate the loop was significantly reduced from 200 to 4 s. The flow rate of the micropump ranges from 48–225 μl/min, which is proportional to the rotational speed of the magnet (150–3000 rpm). Using a fluttering bar-driven inertial micropump, the microfluidic system not only provides improved mixing, but also eliminates certain problems associated with external tubing and connection. AIP Publishing LLC 2018-02-14 /pmc/articles/PMC5812741/ /pubmed/29531636 http://dx.doi.org/10.1063/1.5017902 Text en © 2018 Author(s). 1932-1058/2018/12(1)/014115/10 All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Regular Articles
Na, Wonwhi
Kim, Jinsung
Lee, Hoyoon
Yoo, Byeongmin
Shin, Sehyun
Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title_full Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title_fullStr Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title_full_unstemmed Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title_short Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
title_sort asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
topic Regular Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5812741/
https://www.ncbi.nlm.nih.gov/pubmed/29531636
http://dx.doi.org/10.1063/1.5017902
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