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Issue 17, 2015
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Jumping acoustic bubbles on lipid bilayers

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Abstract

In the context of sonoporation, we use supported lipid bilayers as a model for biological membranes and investigate the interactions between the bilayer and microbubbles induced by ultrasound. Among the various types of damage caused by bubbles on the surface, our experiments exhibit a singular dynamic interaction process where bubbles are jumping on the bilayer, forming a necklace pattern of alteration on the membrane. This phenomenon was explored with different time and space resolutions and, based on our observations, we propose a model for a microbubble subjected to the combined action of van der Waals, acoustic and hydrodynamic forces. Describing the repeated jumps of the bubble, this model explains the lipid exchanges between the bubble and bilayer.

Graphical abstract: Jumping acoustic bubbles on lipid bilayers

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Article information


Submitted
19 Feb 2015
Accepted
11 Mar 2015
First published
11 Mar 2015

Soft Matter, 2015,11, 3460-3469
Article type
Paper
Author version available

Jumping acoustic bubbles on lipid bilayers

C. Der Loughian, P. Muleki Seya, C. Pirat, C. Inserra, J. Béra and J. Rieu, Soft Matter, 2015, 11, 3460
DOI: 10.1039/C5SM00427F

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