Department of Physics Papers
Document Type
Journal Article
Date of this Version
3-1999
Publication Source
Science
Volume
285
Start Page
394
Last Page
397
DOI
10.1126/science.285.5426.394
Abstract
A positively charged, mixed bilayer vesicle in the presence of negatively charged surfaces (for example, colloidal particles) can spontaneously partition into an adhesion zone of definite area, and another zone that repels additional negative objects. Although the membrane itself has nonnegative charge in the repulsive zone, negative counterions on the interior of the vesicle spontaneously aggregate there, and present a net negative charge to the exterior. Beyond the fundamental result that oppositely charged objects can repel, our mechanism helps explain recent experiments on surfactant vesicles.
Recommended Citation
Aranda-Espinoza, H., Chen, Y., Dan, N., Lubesnky, T. C., Nelson, P. C., Ramos, L., & Weitz, D. A. (1999). Electrostatic Repulsion of Positively Charged Vesicles and Negatively Charged Objects. Science, 285 394-397. http://dx.doi.org/10.1126/science.285.5426.394
Date Posted: 07 April 2017
This document has been peer reviewed.