Metastability of Multi-Lamellar Vesicles in a Nonionic System

Luigi Filippelli, Bruno Medronho, Cesare Oliviero Rossi, Maria G. Miguel, Ulf Olsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review


Nuclear magnetic resonance spectroscopy and rheological analysis have been used to investigate the stability of mechanically induced tri-ethylene-glycol-mono-n-decyl-ether (C10E3)/deuterium oxide (D2O) multi-lamellar vesicles (MLVs) and the transition from MLVs to planar lamellae. It was found that MLVs prepared by vortex stirring, relax back to the lamellar phase in a few hours while the relaxation of the shear induced MLVs takes days. Pulsed gradient spin echo and water self-diffusion coefficient experiments, revealed that the MLVs texture, obtained by vortex stirring, is composed of large size structures. These data indicate that the kinetics of lamellar re-formation depend on the MLVs number density.
Original languageEnglish
Title of host publicationMolecular Crystals and Liquid Crystals
PublisherTaylor & Francis
Publication statusPublished - 2009
Event8th National Meeting of the Italian-Liquid-Crystal-Society - Acitrezza, ITALY
Duration: 2008 Jun 42008 Jun 7

Publication series

ISSN (Print)1543-5318
ISSN (Electronic)1542-1406


Conference8th National Meeting of the Italian-Liquid-Crystal-Society

Subject classification (UKÄ)

  • Physical Chemistry

Free keywords

  • rheo-NMR
  • MLVs
  • C10E3
  • relaxation time
  • lamellar phase


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