The two step synthesis of a new series of bolaamphiphiles derived from alkenyl D-xylosides is described. Yields between 57 and 90% have been reached. Aggregation behavior and membrane interaction properties of a particular sugar-bolaform composed of two xylose heads connected by an ether link to a hydrophobic chain comprising 18 carbon atoms and an insaturation were studied. Its CAC value (∼0.05 mM) is low compared to those of conventional surfactants. Thermodynamic analysis has revealed that the aggregation phenomenon is mainly driven by an entropy process. The compound is able to interact with DPPC monolayers, in particular if their surface pressure is ≥15 mN m−1. Our results highlight the potential of this bolaamphiphile as surfactant and membrane interacting agent.
本研究介绍了从烯基
D-木糖苷衍生出的一系列新的双
酰胺类化合物的两步合成法。产量达到 57% 到 90%。研究了由两个
木糖头通过一个醚键连接到由 18 个碳原子和一个不饱和体组成的疏
水链上的一种特殊糖波拉形式的聚合行为和膜相互作用特性。与传统表面活性剂相比,它的
CAC 值(∼0.05 mM)较低。热力学分析表明,聚集现象主要由熵过程驱动。该化合物能够与
DPPC 单层相互作用,尤其是当其表面压力≥15 mN m-1 时。我们的研究结果凸显了这种双亲化合物作为表面活性剂和膜相互作用剂的潜力。