A facile microfluidic strategy for measuring interfacial tension

被引：29
|
作者：
Zhou, Hongbo [1 ,2 ]
Yao, Yuan [1 ]
Chen, Qiang [2 ]
Li, Gang [2 ]
Yao, Shuhuai [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Hong Kong, Peoples R China
[2] Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 23期
基金：
美国国家科学基金会;
关键词：
Facile method - Immiscible fluids - Low costs - Micro-fluidic devices - Oil/water systems - Tensiometry;
D O I：
10.1063/1.4838616
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report a facile method for measuring interfacial tension (IFT, gamma) of immiscible fluids using a microfluidic device. The IFT is determined by monitoring the pressure drop across a microchannel, where a pair of modified Laplace sensors (formed by tapered channels) are connected, and the curvatures of the interfaces in the tapered channels. The method was tested with the model oil/water systems, and the results agreed well with a commercial tensiometry. We expect this method to be easily implemented in common microfluidic laboratories and supply a low-cost and fast way for interfacial tension measurement. (C) 2013 AIP Publishing LLC.
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页数：4
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