Vesicle formation and other structures in aqueous dispersios of monoolein and sodium oleate
(2003) In Journal of Colloid and Interface Science 257(2). p.310-320- Abstract
- The macroscopic appearance and microstructure in the dilute corner of the ternary monoolein (MO)-sodium oleate (NaO)-water ((H2O)-H-2) system have been investigated by visual inspection and by using direct structural imaging with light microscopy and cryogenic transmission electron microscopy. The microstructural transformations that take place between the micellar phase (binary NaO-(H2O)-H-2 axis) and the dispersed cubic phase (binary MO-(H2O)-H-2 axis) upon increasing the ratio of MO to NaO are micelles, ruptured multilamellar vesicles together with flexible threads, various vesicle structures, vesicles in equilibrium with densely packed layers that either represent bilayers or domains of H-
I tubes visible from the side, and... (More) - The macroscopic appearance and microstructure in the dilute corner of the ternary monoolein (MO)-sodium oleate (NaO)-water ((H2O)-H-2) system have been investigated by visual inspection and by using direct structural imaging with light microscopy and cryogenic transmission electron microscopy. The microstructural transformations that take place between the micellar phase (binary NaO-(H2O)-H-2 axis) and the dispersed cubic phase (binary MO-(H2O)-H-2 axis) upon increasing the ratio of MO to NaO are micelles, ruptured multilamellar vesicles together with flexible threads, various vesicle structures, vesicles in equilibrium with densely packed layers that either represent bilayers or domains of H-
I tubes visible from the side, and finally a pattern that may be either a cubic
phase or domains of HII tubes visible in a cross section. Spontaneously
formed uni- and multilamellar vesicles that show long-term stability
are found to be the dominant structure for mixed dispersions over
almost the entire concentration range. The addition of NaOH to the
non-bilayer-forming system, the ternary MO-OA (oleic acid)-(H2O)-H-2
system, leads to the fort-nation of vesicles. Vesicles were also
observed in other ternary MO-aqueous-based systems with potassium
oleate, cetyltrimethylammonium bromide, sodium taurodeoxycholate, or
dipalmitoylphosphatidylcholine instead of NaO. (C) 2003 Elsevier
Science (USA). All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/121949
- author
- Borné, Johanna LU ; Nylander, Tommy LU and Khan, Ali LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Colloid and Interface Science
- volume
- 257
- issue
- 2
- pages
- 310 - 320
- publisher
- Elsevier
- external identifiers
-
- wos:000180947700017
- scopus:0037440359
- ISSN
- 1095-7103
- DOI
- 10.1016/S0021-9797(02)00036-X
- language
- English
- LU publication?
- yes
- id
- 163daa43-a191-4d16-9d21-ea220aa024af (old id 121949)
- date added to LUP
- 2016-04-01 11:37:06
- date last changed
- 2022-01-26 07:43:04
@article{163daa43-a191-4d16-9d21-ea220aa024af, abstract = {{The macroscopic appearance and microstructure in the dilute corner of the ternary monoolein (MO)-sodium oleate (NaO)-water ((H2O)-H-2) system have been investigated by visual inspection and by using direct structural imaging with light microscopy and cryogenic transmission electron microscopy. The microstructural transformations that take place between the micellar phase (binary NaO-(H2O)-H-2 axis) and the dispersed cubic phase (binary MO-(H2O)-H-2 axis) upon increasing the ratio of MO to NaO are micelles, ruptured multilamellar vesicles together with flexible threads, various vesicle structures, vesicles in equilibrium with densely packed layers that either represent bilayers or domains of H-<br/><br> I tubes visible from the side, and finally a pattern that may be either a cubic<br/><br> phase or domains of HII tubes visible in a cross section. Spontaneously<br/><br> formed uni- and multilamellar vesicles that show long-term stability<br/><br> are found to be the dominant structure for mixed dispersions over<br/><br> almost the entire concentration range. The addition of NaOH to the<br/><br> non-bilayer-forming system, the ternary MO-OA (oleic acid)-(H2O)-H-2<br/><br> system, leads to the fort-nation of vesicles. Vesicles were also<br/><br> observed in other ternary MO-aqueous-based systems with potassium<br/><br> oleate, cetyltrimethylammonium bromide, sodium taurodeoxycholate, or<br/><br> dipalmitoylphosphatidylcholine instead of NaO. (C) 2003 Elsevier<br/><br> Science (USA). All rights reserved.}}, author = {{Borné, Johanna and Nylander, Tommy and Khan, Ali}}, issn = {{1095-7103}}, language = {{eng}}, number = {{2}}, pages = {{310--320}}, publisher = {{Elsevier}}, series = {{Journal of Colloid and Interface Science}}, title = {{Vesicle formation and other structures in aqueous dispersios of monoolein and sodium oleate}}, url = {{http://dx.doi.org/10.1016/S0021-9797(02)00036-X}}, doi = {{10.1016/S0021-9797(02)00036-X}}, volume = {{257}}, year = {{2003}}, }