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Title: Microfluidic generation of monodisperse ultra-low interfacial tension oil droplets in water
Authors: Bolognesi, Guido
Hargreaves, Alex
Ward, Andrew D.
Kirby, Andrew K.
Bain, Colin D.
Ces, Oscar
Issue Date: 2015
Publisher: Royal Society of Chemistry
Citation: BOLOGNESI, G. ... et al, 2015. Microfluidic generation of monodisperse ultra-low interfacial tension oil droplets in water. RSC Advances, 5 (11), pp. 8114 - 8121.
Abstract: We present a novel microfluidic approach for the generation of monodisperse oil droplets in water with interfacial tensions of the order of 1 μN m-1. Using an oil-in-water emulsion containing the surfactant aerosol OT, heptane, water and sodium chloride under conditions close to the microemulsion phase transition, we actively controlled the surface tension at the liquid-liquid interface within the microfluidic device in order to produce monodisperse droplets. These droplets exhibited high levels of stability with respect to rupture and coalescence rates. Confirmation that the resultant emulsions were in the ultra-low tension regime was determined using real space detection of thermally-induced capillary waves at the droplet interface.
Description: This is an open access article published by the Royal Society of Chemistry and distributed under the terms of the Creative Commons Attribution Licence (CC BY 3.0), https://creativecommons.org/licenses/by/3.0/
Sponsor: This work was supported by EPSRC grants EP/I013342/1 and EP/G00465X/1.
Version: Published
DOI: 10.1039/c4ra14967j
URI: https://dspace.lboro.ac.uk/2134/23480
Publisher Link: http://dx.doi.org/10.1039/c4ra14967j
Appears in Collections:Published Articles (Chemical Engineering)

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