微細操作に向けたオンチップ音響振動の評価システム構築

抄録

In this paper, we propose evaluation system for on-chip acoustic vibrations. In recent years, microfluidic chip has been researched in the fields of biomedical or biochemical. To manipulate microparticles in a microfluidic chip, acoustofluidics is attracting attention because of its high throughput, low invasive and simple system characteristics. However, temperature variation in the microchannel and diffraction of the acoustic waves cause manipulation force for the particles unstable. In this study, we constructed and improved evaluation system based on schlieren method to investigate acoustic waves in a microfluidic chip. We succeeded in visualizing the standing waves. In addition, the acoustic pressure amplitudes were quantitatively evaluated by obtaining light intensity of the schlieren images.