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| Titel: |
Microscopic PIV Measurements for Electro-osmotic Flows in PDMS Microchannels |
| Auteur: |
M.J. Kim K.D. Kihm |
| Verschenen in: |
Journal of visualization |
| Paginering: | Jaargang 7 (2004) nr. 2 pagina's 111-118 |
| Jaar: |
2004-09-03 |
| Inhoud: |
Electro-osmosis is the flow produced by the action of an electric field on a fluid with a net charge, which is created by the Zeta potential and confined in the Debye layer. This basic phenomenon in the electro-kinetic transport plays an important role in the microfluidic systems being explored today because it can be applied to a variety of MEMS devices. This paper presents global and point-wise comparisons of experimental measurements of electro-osmotically driven flows in elementary microchannel configurations, which are made by photolithography using poly-di-methyl-siloxane (PDMS). To measure full field velocity distributions in PDMS microchannels, a microscopic particle image velocimetry (μ-PIV) system has been developed to track the fluorescent images of 500 nm diameter particles. Comparisons of experimental results among various micro-configurations show feasibilities of the electro-osmotic flows to use for micro-pumping and micro-fluidic flow control. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 16 van 25 gevonden artikelen
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