Microfluidic Tensiometry Technique for the Characterization of the Interfacial Tension between Immiscible Liquids.

ABSTRACT: The interfacial tension between two immiscible fluids is of critical importance for understanding many natural phenomena as well as in industrial production processes; however, it can be challenging to measure this parameter with high accuracy. Most commonly used techniques have significant shortcomings because of their reliance on other data such as density or viscosity. To overcome these issues, we devise a technique that works with very small sample quantities and does not require any data about either fluid, based on micropipette aspiration techniques. The method facilitates the generation of a droplet of one fluid inside of the other, followed by immediate in situ aspiration of the droplet into a constricted channel. A modified Young-Laplace equation is then used to relate the pressur

SUBMITTER: Honaker LW 

PROVIDER: S-EPMC5940325 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature