Specific Alkali Cation Effects in the Transition from Micelles to Vesicles through Salt Addition | Zendy

A. Recourt | Zendy; Nina Vlachy | Zendy; P. Bauduin | Zendy; Markus Drechsler | Zendy; D. Touraud | Zendy; JeanMarc Verbavatz | Zendy; M. Dubois | Zendy; Werner Kunz | Zendy; Barry W. Ninham | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Specific Alkali Cation Effects in the Transition from Micelles to Vesicles through Salt Addition

Author(s) -

A. Recourt,

Nina Vlachy,

P. Bauduin,

Markus Drechsler,

D. Touraud,

JeanMarc Verbavatz,

M. Dubois,

Werner Kunz,

Barry W. Ninham

Publication year - 2007

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la062837z

Subject(s) - chemistry , counterion , pulmonary surfactant , micelle , hofmeister series , alkali metal , vesicle , salt (chemistry) , bromide , inorganic chemistry , sodium , ion , chromatography , organic chemistry , aqueous solution , membrane , biochemistry

The transition of ionic micelles to vesicles with added salts is explored in this paper. The catanionic surfactant solution was comprised of sodium dodecylsulfate (SDS) and dodecyltrimethylammonium bromide (DTAB) with an excess of SDS. The micellar size increased with concentration for all salts. No anion specificity was found, probably because of the excess of SDS. However, when the cation of the added salt was varied, large differences were observed in the hydrodynamic radii of the aggregates. A classification of the cations according to their ability to increase the measured hydrodynamic radii follows a Hofmeister series. The change in aggregate size can be explained by modified counterion binding and dehydration of the surfactant headgroups.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research