Microfluidic methods for generating continuous droplet streams

被引:657
作者
Christopher, G. F. [1 ]
Anna, S. L. [1 ]
机构
[1] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA
关键词
D O I
10.1088/0022-3727/40/19/R01
中图分类号
O59 [应用物理学];
学科分类号
摘要
Microfluidic technologies have emerged recently as a promising new route for the fabrication of uniform emulsions. In this paper, we review microfluidic methods for synthesizing uniform streams of droplets and bubbles, focusing on those that utilize pressure-driven flows. Three categories of microfluidic geometries are discussed, including co-flowing streams, cross-flowing streams, and flow focusing devices. In each category we summarize observations that have been reported to date in experiments and numerical simulations. We describe these results in the context of physical mechanisms for droplet breakup, and simple theoretical models that have been proposed. Applications of droplets in microfluidic devices are briefly reviewed.
引用
收藏
页码:R319 / R336
页数:18
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