The standing acoustic surface waves, because of their non-contact nature and the biocompatibility, are widely used in the field of microfluidic control, with a broad application prospect in the fields of biomedicine and diagnostics. The formation of surface standing waves and the control mechanism of particles in microfluidics are reviewed. The advantages of surface standing waves over other physical means in the field of microfluidic control are analyzed. Finally, the future research directions of standing wave in the field of microfluidics are suggested.

surface acoustic waves  /  microfluidics  /  interdigital transducer  /  standing acoustic surface waves  /  microparticle manipulation