Metastability of Multi-Lamellar Vesicles in a Nonionic System

Filippelli, L.; Rossi, C. O.; Miguel, Maria Graça; Olsson, U.

http://hdl.handle.net/10400.1/6386

Use this identifier to reference this record.

Name:	Description:	Size:	Format:
Metastability of Multi Lamellar Vesicles in a Nonionic System.pdf		632.61 KB	Adobe PDF	Download

Send Feedback

Authors

Abstract(s)

Nuclear magnetic resonance spectroscopy and rheological analysis have been used to investigate the stability of mechanically induced tri-ethylene-glycol-mono-n-decyl-ether (C(10)E(3))/deuterium oxide (D(2)O) 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.