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Updated: Sep 12, 2025

Visualization of High Speed Liquid Jet Impaction on a Moving Surface
Published on: April 17, 2015
Superstability of micrometre jets surrounded by a polymeric shell
A Rubio1, J M Montanero1, M Vakili2,3
1Departamento de Ingeniería Mecánica, Energética y de los Materiales, Instituto de Computación Científica Avanzada (ICCAEx), Universidad de Extremadura, E-06006 Badajoz, Spain.
Abstract:
We have produced superstable compound liquid microjets with a 3D-printed coaxial flow-focusing injector. The aqueous jet core is surrounded by a shell, a few hundred nanometres in thickness, of a low-concentration aqueous solution of a low-molecular-weight polymer. Due to the stabilizing effect of the polymeric shell, the minimum liquid flow rate leading to stable flow-focusing is decreased by one order of magnitude, resulting in much thinner and longer jets. Possible applications of this technique for serial femtosecond X-ray crystallography are discussed.
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