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Issue 4, 2017
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Temperature controlled tensiometry using droplet microfluidics

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Abstract

We develop a temperature controllable microfluidic device for the accurate measurement of temperature dependent interfacial tensions between two immiscible liquids. A localized temperature control system is integrated with the microfluidic platform to maintain an accurate temperature inside the device. The temperature uniformity and sensitivity are verified by both simulation and experimental results. Temperature dependent interfacial tensions are measured dynamically and rapidly, relying on quantitative analysis of the deformation and retraction dynamics of droplets under extensional flow. Our microfluidic tensiometry offers the capability of measuring temperature dependent interfacial tensions with precise and systematic temperature control in the range of room temperature to 70 °C, which is valuable for studying transient interfacial dynamics, interfacial reactions, and the surfactant adsorption process.

Graphical abstract: Temperature controlled tensiometry using droplet microfluidics

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Article information


Submitted
09 Nov 2016
Accepted
24 Jan 2017
First published
24 Jan 2017

Lab Chip, 2017,17, 717-726
Article type
Paper

Temperature controlled tensiometry using droplet microfluidics

D. Lee, C. Fang, A. S. Ravan, G. G. Fuller and A. Q. Shen, Lab Chip, 2017, 17, 717
DOI: 10.1039/C6LC01384H

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