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Formation of a liquid crystalline phase from phosphatidylcholine at the oil-aqueous interface

Benjamins, Jan-Willem LU ; Thuresson, Krister LU and Nylander, Tommy LU (2005) In Langmuir 21(7). p.2804-2810
Abstract
Adsorption of phospholipid (1,2-dioleoyl-sn-glycero-3-phosphatidylcholine) and formation of a surface phase at the oil-water interface has been followed by using ellipsometry. The properties of the interfacial phase were found to depend strongly on whether phospholipid was added to the oil phase or to the aqueous phase as liposomal structures. In the latter case a monolayer formed, while if the phospholipid was supplied from the oil phase a lamellar phase appeared at the interface. The effect on the stabilizing surface phase of a surface-active protein (P-lactoglobulin) was also investigated. The observations are important for understanding stabilizing properties of surface-active compounds commonly used to stabilize emulsions. In addition... (More)
Adsorption of phospholipid (1,2-dioleoyl-sn-glycero-3-phosphatidylcholine) and formation of a surface phase at the oil-water interface has been followed by using ellipsometry. The properties of the interfacial phase were found to depend strongly on whether phospholipid was added to the oil phase or to the aqueous phase as liposomal structures. In the latter case a monolayer formed, while if the phospholipid was supplied from the oil phase a lamellar phase appeared at the interface. The effect on the stabilizing surface phase of a surface-active protein (P-lactoglobulin) was also investigated. The observations are important for understanding stabilizing properties of surface-active compounds commonly used to stabilize emulsions. In addition it has been demonstrated that ellipsometry can be used to study the initial process when a two-phase system consisting of a water and an oil phase is transformed into a three phase system or eventually to a one-phase system. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
21
issue
7
pages
2804 - 2810
publisher
The American Chemical Society
external identifiers
  • wos:000228042400030
  • pmid:15779952
  • scopus:16244421096
ISSN
0743-7463
DOI
10.1021/la048957t
language
English
LU publication?
yes
id
b91e7526-7ba2-4c78-ac0e-a675ba460f5e (old id 157205)
date added to LUP
2007-07-10 17:15:29
date last changed
2017-01-01 04:57:50
@article{b91e7526-7ba2-4c78-ac0e-a675ba460f5e,
  abstract     = {Adsorption of phospholipid (1,2-dioleoyl-sn-glycero-3-phosphatidylcholine) and formation of a surface phase at the oil-water interface has been followed by using ellipsometry. The properties of the interfacial phase were found to depend strongly on whether phospholipid was added to the oil phase or to the aqueous phase as liposomal structures. In the latter case a monolayer formed, while if the phospholipid was supplied from the oil phase a lamellar phase appeared at the interface. The effect on the stabilizing surface phase of a surface-active protein (P-lactoglobulin) was also investigated. The observations are important for understanding stabilizing properties of surface-active compounds commonly used to stabilize emulsions. In addition it has been demonstrated that ellipsometry can be used to study the initial process when a two-phase system consisting of a water and an oil phase is transformed into a three phase system or eventually to a one-phase system.},
  author       = {Benjamins, Jan-Willem and Thuresson, Krister and Nylander, Tommy},
  issn         = {0743-7463},
  language     = {eng},
  number       = {7},
  pages        = {2804--2810},
  publisher    = {The American Chemical Society},
  series       = {Langmuir},
  title        = {Formation of a liquid crystalline phase from phosphatidylcholine at the oil-aqueous interface},
  url          = {http://dx.doi.org/10.1021/la048957t},
  volume       = {21},
  year         = {2005},
}