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The Effect of 3-pentadecylphenol on DPPC Bilayers ATR-IR and 31P NMR Studies

The Effect of 3-pentadecylphenol on DPPC Bilayers ATR-IR and 31P NMR Studies

Katarzyna Cieślik-Boczula, Aleksander Koll

Biophys Chem. 2009 Mar;140(1-3):51-6.

PMID: 19073358

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 (31)P NMR methods. On the basis of analysis of the bands assigned to the CH(2) stretching, CH(2) scissoring, C=O stretching, and PO(2)(-) stretching vibrations it was revealed that PDP influences both the hydrophobic and hydrophilic parts of the DPPC liposome bilayer. Analysis of the (31)P 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 nuC=O and nu(as)PO(2)(-) band positions and lower gauche populations in the hydrophobic chain region compared with the DPPC bilayer in the liquid-crystal phase.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP501246	3-Pentadecylphenol		501-24-6	Price

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