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Publication Citation: Microfluidic interfacial tensiometry

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Author(s): Steven D. Hudson; J Cabral; Kathryn L. Beers; W Goodrum; Eric J. Amis;
Title: Microfluidic interfacial tensiometry
Published: August 17, 2005
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.
Citation: Applied Physics Letters
Volume: 87
Pages: pp. 081905-1 - 081905-3
Keywords: drops,finite-size effects,immiscible fluids,interfacial tension,microfludics,surface tension
Research Areas: Nanofluidics
PDF version: PDF Document Click here to retrieve PDF version of paper (122KB)