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.

引用

页数：4

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