十二烷基磺基琥珀酸二辛基钠(气溶胶- ot)在对甲苯磺酸和磷脂酰胆碱中的非平衡微结构的结构研究

M. Temgire, C. Manohar, J. Bellare, S. Joshi
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引用次数: 3

摘要

当难溶的固体表面活性剂与水接触时,在界面上形成了几种微观结构。其中一类微观结构被称为“髓鞘结构”;当磷脂酰胆碱与水接触时,观察到这些变化。虽然髓磷脂最初是简单的杆状,但复杂的形式如螺旋、线圈等。出现在后期。最后,髓磷脂融合在一起形成一个复杂的马赛克状结构。用冷冻扫描电镜对其横切面进行研究,发现髓鞘内呈同心圆形。(二辛基十二烷基磺基膦酸钠)AOT/水体系髓鞘内部结构的截面丢失。当对甲苯磺酸(PTS) 2 wt%存在于水相时,AOT髓磷脂显示出内部微结构。它具有环状同心圆状结构,中心有一个核心轴突。进一步的研究首次揭示了在单髓磷脂链中具有多个轴突的新微观结构。
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Structural Studies on Nonequilibrium Microstructures of Dioctyl Sodium Dodecyl Sulfosuccinate (Aerosol-OT) in p-Toluenesulfonic Acid and Phosphatidylcholine
Several microstructures are evolved at the interface when sparingly soluble solid surfactants come in contact with water. One class of these microstructures is termed as “myelin figures”; these were observed when phosphatidylcholine came in contact with water. Although the myelins are initially simple rod-like, complex forms like helices, coils and so forth. appear in the later stage. Finally, the myelins fuse together to form a complex mosaic-like structure. When studied by taking a cross-section using cryoscanning electron microscopy, it revealed concentric circular pattern inside the myelin figures. The cross-sections of (dioctyl sodium dodecyl sulfosiccinate) AOT/water system myelin internal structures were lost. When p-toluenesulfonic acid (PTS) 2 wt% was present in the water phase, AOT myelins revealed the internal microstructures. It has annular concentric ring-like structure with a core axon at the centre. Further investigation revealed new microstructures for the first time having multiple axons in the single-myelin strand.
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