首页> 外文期刊>Biophysical Chemistry: An International Journal Devoted to the Physical Chemistry of Biological Phenomena >The effect of 3-pentadecylphenol on DPPC bilayers ATR-IR and 31P NMR studies.
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The effect of 3-pentadecylphenol on DPPC bilayers ATR-IR and 31P NMR studies.

机译:3-十五烷基苯酚对DPPC双层ATR-IR和31P NMR研究的影响。

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摘要

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.
机译:使用ATR-IR和(31)P NMR方法研究了3-十五烷基苯酚(PDP)对DPPC脂质体脂质双层结构和理化性质的影响。根据分配给CH(2)拉伸,CH(2)剪式,C = O拉伸和PO(2)(-)拉伸振动的谱带分析,发现PDP影响疏水和亲水部分DPPC脂质体双层。对(31)P NMR线形的分析表明,在PDP掺杂的DPPC分散体中存在从层状到非层状的相变。结果表明,与DPPC双层在液晶相中相比,PDP / DPPC各向同性聚集体在疏水链区域具有相似的nuC = O和nu(as)PO(2)(-)能带位置和较低的薄纱种群。

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