Jump to main content
Jump to site search

Issue 31, 2015

Dynamics of fatty acid vesicles in response to pH stimuli

Author affiliations

Abstract

We investigate the dynamics of decanoic acid/decanoate (DA) vesicles in response to pH stimuli. Two types of dynamic processes induced by the micro-injection of NaOH solutions are sequentially observed: deformations and topological transitions. In the deformation stage, DA vesicles show a series of shape deformations, i.e., prolate–oblate–stomatocyte-sphere. In the topological transition stage, spherical DA vesicles follow either of the two pathways, pore formation and vesicle fusion. The pH stimuli modify a critical aggregation concentration of DA molecules, which causes the solubilization of DA molecules in the outer leaflet of the vesicle bilayers. This solubilization decreases the outer surface area of the vesicle, thereby increasing surface tension. A kinetic model based on area difference elasticity theory can accurately describe the dynamics of DA vesicles triggered by pH stimuli.

Graphical abstract: Dynamics of fatty acid vesicles in response to pH stimuli

Supplementary files

Article information


Submitted
22 May 2015
Accepted
06 Jul 2015
First published
06 Jul 2015

Soft Matter, 2015,11, 6327-6334
Article type
Paper
Author version available

Dynamics of fatty acid vesicles in response to pH stimuli

K. Ikari, Y. Sakuma, T. Jimbo, A. Kodama, M. Imai, P. Monnard and S. Rasmussen, Soft Matter, 2015, 11, 6327 DOI: 10.1039/C5SM01248A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements