A fast passive and planar liquid sample micromixer |
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Authors: | Melin Jessica Gimenéz Guillem Roxhed Niclas van der Wijngaart Wouter Stemme Göran |
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Institution: | Microsystem Technology, Department of Signals, Sensors and Systems, Royal Institute of Technology, SE 100 44, Stockholm, Sweden. |
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Abstract: | A novel microdevice for passively mixing liquid samples based on surface tension and a geometrical mixing chamber is presented. Due to the laminar flow regime on the microscale, mixing becomes difficult if not impossible. We present a micromixer where a constantly changing time dependent flow pattern inside a two sample liquid plug is created as the plug simply passes through the planar mixer chamber. The device requires no actuation during mixing and is fabricated using a single etch process. The effective mixing of two coloured liquid samples is demonstrated. |
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