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Issue 21, 2009
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Dynamic patterns in a supported lipid bilayer driven by standing surface acoustic waves

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Abstract

In the past decades supported lipid bilayers (SLBs) have been an important tool in order to study the physical properties of biological membranes and cells. So far, controlled manipulation of SLBs is very limited. Here we present a new technology to create lateral patterns in lipid membranes controllable in both space and time. Surface acoustic waves (SAWs) are used to generate lateral standing waves on a piezoelectric substrate which create local “traps” in the lipid bilayer and lead to a lateral modulation in lipid concentration. We demonstrate that pattern formation is reversible and does not affect the integrity of the lipid bilayer as shown by extracting the diffusion constant of fluid membranes. The described method could possibly be used to design switchable interfaces for the lateral transport and organization of membrane bound macromolecules to create dynamic bioarrays and control biofilm formation.

Graphical abstract: Dynamic patterns in a supported lipid bilayer driven by standing surface acoustic waves

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Publication details

The article was received on 08 Apr 2009, accepted on 29 Jun 2009 and first published on 30 Jul 2009


Article type: Method
DOI: 10.1039/B907157A
Citation: Lab Chip, 2009,9, 3050-3053
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    Dynamic patterns in a supported lipid bilayer driven by standing surface acoustic waves

    M. Hennig, J. Neumann, A. Wixforth, J. O. Rädler and M. F. Schneider, Lab Chip, 2009, 9, 3050
    DOI: 10.1039/B907157A

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