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Nano Lett. 2012 Mar 14;12(3):1372-8. doi: 10.1021/nl203983e. Epub 2012 Feb 24.

Radial sizing of lipid nanotubes using membrane displacement analysis.

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  • 1Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden.


We report a novel method for the measurement of lipid nanotube radii. Membrane translocation is monitored between two nanotube-connected vesicles, during the expansion of a receiving vesicle, by observing a photobleached region of the nanotube. We elucidate nanotube radii, extracted from SPE vesicles, enabling quantification of membrane composition and lamellarity. Variances of nanotube radii were measured, showing a growth of 40-56 nm, upon increasing cholesterol content from 0 to 20%.

© 2012 American Chemical Society

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