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arXiv · 2505.20965

Superstability of micrometer jets surrounded by a polymeric shell

A. Rubio·J. M. Montanero·M. Vakili·F. H. M. Koua·S. Bajt·H. N. Chapman·A. M. Gañán-Calvo
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Abstract

We have produced superstable compound liquid microjets with a three-dimensional printed coaxial flow-focusing injector. The aqueous jet core is surrounded by a shell, a few hundred nanometers 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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A. Rubio, J. M. Montanero, M. Vakili, F. H. M. Koua, S. Bajt, H. N. Chapman, A. M. Gañán-Calvo. 2025-05-27. Superstability of micrometer jets surrounded by a polymeric shell. https://arxiv.org/abs/2505.20965

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