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Steven D. Hudson, J Cabral, Kathryn L. Beers, W Goodrum, Eric J. Amis
Abstract
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.
Hudson, S.
, Cabral, J.
, Beers, K.
, Goodrum, W.
and Amis, E.
(2005),
Microfluidic interfacial tensiometry, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852424
(Accessed October 2, 2025)