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...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2017
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/83058 http://hdl.handle.net/10220/43705 https://sciforum.net/conference/optofluidics2017/paper/4158 |
| _version_ | 1811677617738219520 |
|---|---|
| author | Lim, An Eng Lim, Chun Yee Lam, Yee Cheong Taboryski, Rafael |
| 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 |
| author_sort | Lim, An Eng |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T02:40:13Z |
| format | Conference Paper |
| id | ntu-10356/83058 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:40:13Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-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 |
| 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 |
| title | 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_short | Electroosmotic flow in microchannel with black silicon nanostructures |
| title_sort | electroosmotic flow in microchannel with black silicon nanostructures |
| topic | Electroosmotic flow Reactive ion etching |
| url | https://hdl.handle.net/10356/83058 http://hdl.handle.net/10220/43705 https://sciforum.net/conference/optofluidics2017/paper/4158 |
| work_keys_str_mv | AT limaneng electroosmoticflowinmicrochannelwithblacksiliconnanostructures AT limchunyee electroosmoticflowinmicrochannelwithblacksiliconnanostructures AT lamyeecheong electroosmoticflowinmicrochannelwithblacksiliconnanostructures AT taboryskirafael electroosmoticflowinmicrochannelwithblacksiliconnanostructures |