Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5371885 | Biophysical Chemistry | 2009 | 6 Pages |
Abstract
The influence of 3-pentadecylphenol (PDP) on the structure and physicochemical properties of the lipid bilayers of DPPC liposomes was studied using ATR-IR and 31P NMR methods. On the basis of analysis of the bands assigned to the CH2 stretching, CH2 scissoring, CO stretching, and PO2â stretching vibrations it was revealed that PDP influences both the hydrophobic and hydrophilic parts of the DPPC liposome bilayer. Analysis of the 31P NMR line-shape indicated a lamellar to non-lamellar phase transition in PDP-doped DPPC dispersions. It was shown that PDP/DPPC isotropic aggregates have similar νCO and νasPO2â band positions and lower gauche populations in the hydrophobic chain region compared with the DPPC bilayer in the liquid-crystal phase.
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Authors
Katarzyna CieÅlik-Boczula, Aleksander Koll,