Formation of dispersions using "flow focusing" in microchannels

被引：1941

作者：

Anna, SL ^{[1
]}

Bontoux, N ^{[1
]}

Stone, HA ^{[1
]}

机构：

[1] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 03期

关键词：

D O I：

10.1063/1.1537519

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A flow-focusing geometry is integrated into a microfluidic device and used to study drop formation in liquid-liquid systems. A phase diagram illustrating the drop size as a function of flow rates and flow rate ratios of the two liquids includes one regime where drop size is comparable to orifice width and a second regime where drop size is dictated by the diameter of a thin "focused" thread, so drops much smaller than the orifice are formed. Both monodisperse and polydisperse emulsions can be produced. (C) 2003 American Institute of Physics.

引用

页码：364 / 366

页数：3

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