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Nature. 2005 Dec 15;438(7070):930.

Colloid science: non-spherical bubbles.

Author information

1
Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Abstract

Surface tension gives gas bubbles their perfect spherical shape by minimizing the surface area for a given volume. Here we show that gas bubbles and liquid drops can exist in stable, non-spherical shapes if the surface is covered, or 'armoured', with a close-packed monolayer of particles. When two spherical armoured bubbles are fused, jamming of the particles on the interface supports the unequal stresses that are necessary to stabilize a non-spherical shape.

PMID:
16355208
DOI:
10.1038/438930a

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