传感技术学报2011，Vol.27Issue(8)：1098-1101,4.DOI:10.3969/j.issn.1004-1699.2011.08.003
基于声表面波技术的微流体混合及仿真
Microfluidic Mixing and Simulation via Surface Acoustic Wave Driving
摘要
Abstract
This work reported an effective approach using surface acoustic waves based on focused interdigital transducers(IDTs)in microfluidic systems. The device was fabricated using lift-off and soft lithography technologies on the piezoelectric IiNbO3 single-crystal substrate. Finite element analysis software (COMSOL Multiphysics) was employed to simulate the generation and distribution of the surface acoustic waves for focused and parallel IDTs, respectively. It demonstrated that the intensity of surface acoustic waves was dramatically enhanced by the focused IDTs, comparing with the parallel IDTs under the same conditions. The experiment results showed that the focused IDTs can mix polystyrene microparticles rapidly with several seconds. The device provides an affordable lab-on-chip system for biological applications.关键词
声表面波/叉指换能器/模拟/混合/微流体系统Key words
surface acoustic wave/interdigital transducers/simulation/mixing/microfluidec system分类
化学化工引用本文复制引用
郑利,张正,李丹,艾林,曾谦,朱红伟,国世上..基于声表面波技术的微流体混合及仿真[J].传感技术学报,2011,27(8):1098-1101,4.基金项目
国家自然科学基金项目(10804087) （10804087）
