Electroosmotic flow in microchannel with black silicon nanostructures

Electroosmotic flow (EOF) is an electrokinetic phenomenon. The fluid motion originates from the electrical body force acting on the excess counterions in the electrical double layer (EDL) when an external electric field is applied across a microchannel. It can be employed in numerous microfluidic ap...

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Main Authors: Lim, An Eng, Lim, Chun Yee, Lam, Yee Cheong, Taboryski, Rafael
Other Authors: School of Mechanical and Aerospace Engineering
Format: Conference or Workshop Item
Language:English
Published: 2017
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Online Access:https://hdl.handle.net/10356/83058
http://hdl.handle.net/10220/43705
https://sciforum.net/conference/optofluidics2017/paper/4158
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-830582023-03-04T17:07:06Z Electroosmotic flow in microchannel with black silicon nanostructures Lim, An Eng Lim, Chun Yee Lam, Yee Cheong Taboryski, Rafael School of Mechanical and Aerospace Engineering 7th International Multidisciplinary Conference on Optofluidics 2017 Electroosmotic flow Reactive ion etching Electroosmotic flow (EOF) is an electrokinetic phenomenon. The fluid motion originates from the electrical body force acting on the excess counterions in the electrical double layer (EDL) when an external electric field is applied across a microchannel. It can be employed in numerous microfluidic applications, ranging from pumping to chemical and biomedical analyses. Nanoscale networks/structures are often integrated within microchannels for a broad range of applications, such as sieving matrices for electrophoretic separation of biomolecules, and its introduction has been known to reduce EOF [1, 2]. Hitherto, the mechanics for EOF reduction due to nanostructured surfaces is still not well understood. To better elucidate the mechanics, we develop a novel fabrication method to produce microchannel with large-area nanostructures for investigation. The micro-/nanostructures produced demonstrate good regularity over a relatively large area and can be mass-produced cost-effectively. Despite the availability of various micro-/nanofabrication techniques, the existing techniques do not satisfy the aforementioned criteria. Accepted version 2017-09-07T08:58:34Z 2019-12-06T15:11:01Z 2017-09-07T08:58:34Z 2019-12-06T15:11:01Z 2017-07-01 2017 Conference Paper Lim, A. E., Lim, C. Y., Lam, Y. C., & Taboryski, R. (2017). Electroosmotic flow in microchannel with black silicon nanostructures. 7th International Multidisciplinary Conference on Optofluidics 2017. https://hdl.handle.net/10356/83058 http://hdl.handle.net/10220/43705 https://sciforum.net/conference/optofluidics2017/paper/4158 200071 en © 2017 The Author(s) ( 7th International Multidisciplinary Conference on Optofluidics 2017). This is the author created version of a work that has been peer reviewed and accepted for publication by 7th International Multidisciplinary Conference on Optofluidics 2017, The Author(s) ( 7th International Multidisciplinary Conference on Optofluidics 2017). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [https://sciforum.net/conference/optofluidics2017/paper/4158]. 2 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Electroosmotic flow
Reactive ion etching
spellingShingle Electroosmotic flow
Reactive ion etching
Lim, An Eng
Lim, Chun Yee
Lam, Yee Cheong
Taboryski, Rafael
Electroosmotic flow in microchannel with black silicon nanostructures
description Electroosmotic flow (EOF) is an electrokinetic phenomenon. The fluid motion originates from the electrical body force acting on the excess counterions in the electrical double layer (EDL) when an external electric field is applied across a microchannel. It can be employed in numerous microfluidic applications, ranging from pumping to chemical and biomedical analyses. Nanoscale networks/structures are often integrated within microchannels for a broad range of applications, such as sieving matrices for electrophoretic separation of biomolecules, and its introduction has been known to reduce EOF [1, 2]. Hitherto, the mechanics for EOF reduction due to nanostructured surfaces is still not well understood. To better elucidate the mechanics, we develop a novel fabrication method to produce microchannel with large-area nanostructures for investigation. The micro-/nanostructures produced demonstrate good regularity over a relatively large area and can be mass-produced cost-effectively. Despite the availability of various micro-/nanofabrication techniques, the existing techniques do not satisfy the aforementioned criteria.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Lim, An Eng
Lim, Chun Yee
Lam, Yee Cheong
Taboryski, Rafael
format Conference or Workshop Item
author Lim, An Eng
Lim, Chun Yee
Lam, Yee Cheong
Taboryski, Rafael
author_sort Lim, An Eng
title Electroosmotic flow in microchannel with black silicon nanostructures
title_short Electroosmotic flow in microchannel with black silicon nanostructures
title_full Electroosmotic flow in microchannel with black silicon nanostructures
title_fullStr Electroosmotic flow in microchannel with black silicon nanostructures
title_full_unstemmed Electroosmotic flow in microchannel with black silicon nanostructures
title_sort electroosmotic flow in microchannel with black silicon nanostructures
publishDate 2017
url https://hdl.handle.net/10356/83058
http://hdl.handle.net/10220/43705
https://sciforum.net/conference/optofluidics2017/paper/4158
_version_ 1759853295186214912