Abstract
We study electro osmotic shear flow in micro channels by chemically and electrically modifying the surface charge of the channel walls. For chemical modification one of the channel walls was treated with cationic polymer. For electric modification, we patterned gate electrodes on one of the channel walls. The applied shear stress is controlled either by the electro osmotic flow (EOF) driving field or by the gate voltage. Such a system can work as an in situ microrheometer for lab on a chip devices.
| Original language | English |
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| Title of host publication | 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, MicroTAS 2010 |
| Editors | Sabeth Verpoorte, Helen Andersson-Svahn, Jenny Emnéus, Nicole Pamme |
| Publisher | The Chemical and Biological Microsystems Society |
| Pages | 1124-1126 |
| Number of pages | 3 |
| ISBN (Electronic) | 978-0-9798064-3-8 |
| ISBN (Print) | 978-1-6183906-2-2 |
| Publication status | Published - 3 Oct 2010 |
| Event | 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2010 - Groningen, Netherlands Duration: 3 Oct 2010 → 7 Oct 2010 Conference number: 14 |
Publication series
| Name | International Conference on Miniaterized Systems for Chemistry and Life Sciences : [proceedings] |
|---|---|
| Publisher | The Chemical and Biological Microsystems Society |
| Volume | 2010 |
| ISSN (Print) | 1556-5904 |
Conference
| Conference | 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2010 |
|---|---|
| Abbreviated title | MicroTAS 2010 |
| Country/Territory | Netherlands |
| City | Groningen |
| Period | 3/10/10 → 7/10/10 |
Keywords
- Electro osmotic flow
- Shear flow
- Gate electrodes