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A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump
A liquid-metal based spiral magnetohydrodynamic (MHD) micropump is proposed in this work. The micropump was fabricated in a polydimethylsiloxane (PDMS)-glass hybrid microfluidic chip. This pump utilized two parallel liquid-metal-filled channels as electrodes to generate a parallel electrical field a...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6187872/ https://www.ncbi.nlm.nih.gov/pubmed/30400555 http://dx.doi.org/10.3390/mi8120365 |
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author | Zhou, Xuyan Gao, Meng Gui, Lin |
author_facet | Zhou, Xuyan Gao, Meng Gui, Lin |
author_sort | Zhou, Xuyan |
collection | PubMed |
description | A liquid-metal based spiral magnetohydrodynamic (MHD) micropump is proposed in this work. The micropump was fabricated in a polydimethylsiloxane (PDMS)-glass hybrid microfluidic chip. This pump utilized two parallel liquid-metal-filled channels as electrodes to generate a parallel electrical field across the pumping channel between the two electrodes. To prevent contact and cross contamination between the liquid metal in the electrode channel and the sample fluid in the pumping channel, a PDMS gap was designed between the liquid metal and the sample fluid. To minimize the chip size, the parallel electrode and pumping channels were designed in a spiral shape. To test pumping performance, NaCl aqueous solution containing fluorescent particles (0.5 μm in diameter) was filled into the pumping channel as the working sample fluid. When a pair of identical magnets (0.4 T) was placed onto both top and bottom surfaces of the chip, the pump was able to drive the sample fluid at a flow velocity of 233.26 μm/s at 3000 V. The pump has no moving parts, and the electrodes are easily fabricated, making the pump suitable for miniaturization and integration into microfluidic systems. |
format | Online Article Text |
id | pubmed-6187872 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61878722018-11-01 A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump Zhou, Xuyan Gao, Meng Gui, Lin Micromachines (Basel) Article A liquid-metal based spiral magnetohydrodynamic (MHD) micropump is proposed in this work. The micropump was fabricated in a polydimethylsiloxane (PDMS)-glass hybrid microfluidic chip. This pump utilized two parallel liquid-metal-filled channels as electrodes to generate a parallel electrical field across the pumping channel between the two electrodes. To prevent contact and cross contamination between the liquid metal in the electrode channel and the sample fluid in the pumping channel, a PDMS gap was designed between the liquid metal and the sample fluid. To minimize the chip size, the parallel electrode and pumping channels were designed in a spiral shape. To test pumping performance, NaCl aqueous solution containing fluorescent particles (0.5 μm in diameter) was filled into the pumping channel as the working sample fluid. When a pair of identical magnets (0.4 T) was placed onto both top and bottom surfaces of the chip, the pump was able to drive the sample fluid at a flow velocity of 233.26 μm/s at 3000 V. The pump has no moving parts, and the electrodes are easily fabricated, making the pump suitable for miniaturization and integration into microfluidic systems. MDPI 2017-12-18 /pmc/articles/PMC6187872/ /pubmed/30400555 http://dx.doi.org/10.3390/mi8120365 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhou, Xuyan Gao, Meng Gui, Lin A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title | A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title_full | A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title_fullStr | A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title_full_unstemmed | A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title_short | A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump |
title_sort | liquid-metal based spiral magnetohydrodynamic micropump |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6187872/ https://www.ncbi.nlm.nih.gov/pubmed/30400555 http://dx.doi.org/10.3390/mi8120365 |
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