Radial Sizing of Lipid Nanotubes Using Membrane Displacement Analysis

نویسندگان

  • Natalia Stepanyants
  • Gavin D. M. Jeffries
  • Owe Orwar
  • Aldo Jesorka
چکیده

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%.

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عنوان ژورنال:

دوره 12  شماره 

صفحات  -

تاریخ انتشار 2012