Campisi, Michele and Accoto, Dino and Damiani, Francesco and Dario, Paolo (2010) A soft-lithographed chaotic electrokinetic micromixer for efficient chemical reactions in lab-on-chips. Journal of Micro-Nano Mechatronics, 5 (3). pp. 69-76.
Mixing is one of the basic functions which automated lab-on-chips require for the effective management of liquid samples. In this paper we report on the working principle, design, fabrication and experimental characterization of a soft-lithographed micromixer for microfluidic applications. The device effectively mixes two liquids by means of chaotic advection obtained as an implementation of a Linked Twisted Map (LTM). In this sense it is chaotic. The liquids are electrokinetically displaced by generating rolls through AC electroosmosis on co-planar electrodes. The device performance has been tested on dyed DI-water for several voltages, frequencies and flow-rates, displaying good mixing properties in the range of 10Ã·100Â kHz, at low peak-to-peak voltages (â¼15Ã·20Â volts). Low voltage supply, small dimensions and possibility of fabrication via standard lithographic techniques make the device highly integrable in lab-on-a-chip platforms.
|Uncontrolled Keywords:||Micromixing · Lab-on-chip · Soft lithography · Chaotic advection · AC electroosmosis|
|Subjects:||Physical Science > Nanoelectronics|
Physical Science > Nanomagnetics
Material Science > Nanostructured materials
|Deposited On:||21 Oct 2010 09:11|
|Last Modified:||21 Oct 2010 09:11|
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