Schönfeld, F. ; Hardt, Steffen ; Böhm, M. ; Püschl, R. J. ; Walder, M. ; Wenclawiak, B. (2006)
Electroosmotic flow patterning using microfluidic delay loops.
In: Lab on a chip, 6 (12)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A theoretical and experimental investigation of alternating electroosmotic flow patterns by means of specially designed delay loops is presented. Using elementary methods of compact network modeling and detailed FEM simulations the flow behavior and, in particular, the rearrangement of sample plugs is modeled. The proposed designs rely on flow splitting in combination with electroosmotic delay loops leading to a runtime difference or phase shift between two sub-streams. Due to this phase shift, a new fluid interface is generated at the merging point. The approach is experimentally validated by injection of a Rhodamine 6G solution into an aqueous sodium tetraborate buffer.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2006 |
| Autor(en): | Schönfeld, F. ; Hardt, Steffen ; Böhm, M. ; Püschl, R. J. ; Walder, M. ; Wenclawiak, B. |
| Art des Eintrags: | Bibliographie |
| Titel: | Electroosmotic flow patterning using microfluidic delay loops |
| Sprache: | Englisch |
| Publikationsjahr: | 2006 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Lab on a chip |
| Jahrgang/Volume einer Zeitschrift: | 6 |
| (Heft-)Nummer: | 12 |
| URL / URN: | http://dx.doi.org/10.1039/b609423f |
| Kurzbeschreibung (Abstract): | A theoretical and experimental investigation of alternating electroosmotic flow patterns by means of specially designed delay loops is presented. Using elementary methods of compact network modeling and detailed FEM simulations the flow behavior and, in particular, the rearrangement of sample plugs is modeled. The proposed designs rely on flow splitting in combination with electroosmotic delay loops leading to a runtime difference or phase shift between two sub-streams. Due to this phase shift, a new fluid interface is generated at the merging point. The approach is experimentally validated by injection of a Rhodamine 6G solution into an aqueous sodium tetraborate buffer. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Zentrale Einrichtungen 16 Fachbereich Maschinenbau > Fachgebiet Nano- und Mikrofluidik (NMF) |
| Hinterlegungsdatum: | 12 Apr 2011 11:53 |
| Letzte Änderung: | 06 Feb 2019 13:48 |
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