Why the wrinkling transition in partially polymerized membranes is not universal? Fractal-multifractal hierarchy

  • Chaieb S
  • Málková Š
  • Lal J
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Abstract

When partially polymerized membranes wrinkle they exhibit a passage from a conventional buckling (due to an instability caused by chiral symmetry breaking) at low polymerization to a local roughening (due to a frustration in the local packing of the chiral molecules composing the membrane) as a function of the polymerization of the lipids aliphatic tails. This transition was found to be non-universal and here we used neutron scattering to elucidate that this behavior is due to the onset of stretching in the membrane accompanied by a bilayer thickness variation. Close to the percolation limit this deformation is plastic similar to mutated lysozymes. We draw an analogy between this transition and echinocytes in red blood cells. © 2007 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Bilayers
  • Proteins folding
  • Red blood cells

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Authors

  • Sahraoui Chaieb

  • Šárka Málková

  • Jyotsana Lal

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