Membrane properties of sodium 2- and 6-(poly)prenyl-substituted polyprenyl phosphates
作者:Saho Takajo、Hajime Nagano、Olivier Dannenmuller、Sangita Ghosh、Anne Marie Albrecht、Yoichi Nakatani、Guy Ourisson
DOI:10.1039/b101802g
日期:——
The
amphiphilic 2- and 6-(poly)prenyl-substituted polyprenyl phosphates and their isomers, spontaneously form vesicles. Vesicle formation depends on the pH of the buffer and the structural features of the hydrophobic chains such
as their lengths and the double bond positions. The compactness of the vesicles was estimated by measuring their water permeability, evaluating the intramolecular attractive van der Waals forces between the highly branched chains and measuring the spin–lattice relaxation times in 13C NMR spectra.
两亲性的 2-和 6-(多)炔基取代的聚炔基磷酸盐及其异构体可自发形成囊泡。囊泡的形成取决于缓冲液的 pH 值和疏水链的结构特征,如长度和双键位置。通过测量囊泡的透水性、评估高度支化链之间的分子内吸引范德华力以及测量 13C NMR 光谱中的自旋晶格弛豫时间,对囊泡的致密性进行了估计。