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Issue 6, 2016
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Determination of mosaicity in oriented stacks of lipid bilayers

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Abstract

Two methods of measuring the misorientation of domains in oriented multilamellar stacks of lipid bilayers superficially appeared to give different values for the mosaic spread. It is first shown that the traditional rocking method and a newer ring method give the same value of the mosaic spread when the two types of data are similarly analyzed. Both indicate a long-tailed, nearly Lorentzian, mosaic distribution function. Our primary innovation is the analysis of ring data as a function of the rocking angle. For our best oriented DOPC sample, this analysis is consistent with a single Lorentzian mosaic distribution function with width 0.05°. In contrast, samples of DMPC indicate a more complex mosaic distribution and larger widths.

Graphical abstract: Determination of mosaicity in oriented stacks of lipid bilayers

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Article information


Submitted
15 Sep 2015
Accepted
01 Dec 2015
First published
01 Dec 2015

Soft Matter, 2016,12, 1884-1891
Article type
Paper
Author version available

Determination of mosaicity in oriented stacks of lipid bilayers

J. F. Nagle, K. Akabori, B. W. Treece and S. Tristram-Nagle, Soft Matter, 2016, 12, 1884
DOI: 10.1039/C5SM02336J

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