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Electro-Optics of Unilamellar Vesicles

Published online by Cambridge University Press:  15 February 2011

N. Asgharian ,
R. L. Meline  and
Z. A. Schelly
N. Asgharian
Affiliation:
Center for Colloidal and Interfacial Dynamics, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019-0065, USA, schelly@uta.edu
R. L. Meline
Affiliation:
Center for Colloidal and Interfacial Dynamics, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019-0065, USA, schelly@uta.edu
Z. A. Schelly
Affiliation:
Center for Colloidal and Interfacial Dynamics, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019-0065, USA, schelly@uta.edu
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Abstract

Electric field-induced transient birefringence and light scattering are reported for aqueous suspensions of synthetic unilamellar bilayer vesicles, prepared from the lipid dioleoylphosphatidylcholine (DOPC). The multiexponential birefringence relaxations observed on the microsecond and millisecond timescales are interpreted in terms of elongation and reorientation of induced dipolar vesicles, their linear chain formation, and electrofusion (and possibly electroporation) of the vesicles. Above certain threshold values of vesicle concentration, field-induced light scattering occurs concomitant with the birefringence. The corresponding transient signals corroborate the linear chain formation and subsequent fusion of the induced dipolar vesicles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 489: Symposium K – Materials Science of the Cell , 1997 , 119
Copyright
Copyright © Materials Research Society 1998

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