Armored bubbles tailoring

What is it about?

We propose a simple method enabling the synthesis of stable cylindrical armoured bubble embedded in a monolayer of partially wettable particles. This method relies on the strongly modified dynamics of a liquid finger pushed inside a capillary tube, when partially wettable particles are lying on the walls.

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Why is it important?

Armoured-bubbles are of primary interest in industrial processes since they display increased stability, interfacial rigidity and can even sustain non-spherical shapes. This work opens perspective for a low cost bubbles-on-demand technology enabling the synthesis of armoured bubbles with specific sizes, shapes and composition.