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Microfluidic interfacial tensiometry



Steven D. Hudson, J Cabral, Kathryn L. Beers, W Goodrum, Eric J. Amis


A microfluidic approach to measure interfacial tension of immiscible fluids rapidly is reported. This method rests upon quantitative real-time analysis of two-phase flow and drop-shape dynamics. Drops of prescribed dimension and spacing are produced, accelerated, and deformed under extensional flow. These measurements compare well with existing published data and demonstrate a wide range of accessible interfacial tension e.g., from (2.5 to 60) mN/m.
Applied Physics Letters


drops, finite-size effects, immiscible fluids, interfacial tension, microfludics, surface tension


Hudson, S. , Cabral, J. , Beers, K. , Goodrum, W. and Amis, E. (2005), Microfluidic interfacial tensiometry, Applied Physics Letters, [online], (Accessed July 23, 2024)


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Created August 17, 2005, Updated February 19, 2017