Eur. Phys. J. E 1, 87-91
Chain length dependence of anomalous swelling in multilamellar lipid vesicles
S.S. Korreman - D. Posselt
Department of Mathematics and Physics (IMFUFA), Roskilde University, P.O. box 260, 4000
Roskilde, Denmark
stine@ruc.dk,
dorthe@ruc.dk
Received 13 January 1999 and Received in final form 6 September 1999
Abstract
Using small-angle
X-ray scattering, the repeat distance vs. temperature is
measured for a homologous series of multilamellar
vesicles of lecithins with varying acyl chain length in excess
water condition around the lipid main transition. A systematic
chain length dependence is found which is in accordance with
a bending rigidity renormalization and critical
unbinding of the lamellae close to the transition, as previously
suggested in
Hønger et al. [Phys. Rev. Lett. 72, 3911 (1994)].
PACS
87.16.-b Subcellular structure and processes -
64.70.Md Transitions in liquid crystals -
61.10.Eq X-ray scattering (including small-angle scattering)
Copyright EDP Sciences, Società Italiana di Fisica, Springer-Verlag
