基于MEMS的微流体混合器的研究与进展

介绍了基于MEMS的微流体混合器几年来的研究成果、发展现状和应用前景．微流体控制系统是微机电集成系统(MEMS)一个主要分支，微流体混合器作为微流体控制系统的重要组成部分，可分为静态混合器和动态混合器两类．微流体静态混合器混合机理是以扩散为主，依靠改变混合器中微型管道的几何形状等方法来提高液体的混合效率．而动态混合器原理新颖，在雷诺数较低的情况下仍能实现快速、均匀的混合，适合微型化发展．

Investigation progress of microfiuidic mixers based on MEMS

The research and applications of microfluidic mixers in the past decade are reviewed. Microfluidic control system is the main offshoot of MEMS. As the key part of the microfluidic control system, microfluidic mixers are mainly divided into static micromixers and dynamic micromixers. The mixing of static micromixers depend mostly on diffusion,changing the shape of microchannel can increase the mixing efficiency. Dynamic micromixers are novel in mechanism, suitable for miniaturization. And they can realize the fast and uniform mixing even the Re is very small.