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      Lamellar sheet exfoliation of single lipid vesicles by a membrane-active peptide

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      Author
      Tabaei, Seyed Ruhollah
      Cho, Nam Joon
      Date of Issue
      2015
      School
      School of Chemical and Biomedical Engineering
      School of Materials Science and Engineering
      Related Organization
      Centre for Biomimetic Sensor Science
      Abstract
      Using total internal fluorescence microscopy, highly parallel measurements of single lipid vesicles unexpectedly reveal that a small fraction of vesicles rupture in multiple discrete steps when destabilized by a membrane-active peptide which is in contrast to classical solubilization models. To account for this surprizing kinetic behaviour, we identified that this vesicle subpopulation consists of multilamellar vesicles, and that the outermost lamella is more susceptible to rupture than unilamellar vesicles of even smaller size. This finding sheds light on the multiple ways in which membrane configuration can influence strain in the bilayer leaflet and contribute to nm-scale membrane curvature sensing.
      Subject
      Nanostructures
      Type
      Journal Article
      Series/Journal Title
      Chemical Communications
      Rights
      © 2015 The Royal Society of Chemistry.
      Collections
      • MSE Journal Articles
      • SCBE Journal Articles
      http://dx.doi.org/10.1039/C5CC02769A
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