Abstract

Abstract A micromixer based on a surface acoustic wave (SAW) has attracted a great deal of attention because of their ability to mix liquids and multiphase flows with very high mixing efficiency. However, since microfluidic channels cloud only be formed directly on the piezoelectric substrate in conventional SAW devices, contamination problems have arisen. In this study, by placing a solution that propagates sound waves between the microfluidic channel and the SAW excitation substrate, vibrations caused by SAWs are propagated into the micro-well to form a micro-mixing system. This system can provide a micromixer that is removable, replaceable, and contamination-free.

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