Fusogenic Metallosupramolecular Brush Vesicles

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• 作者：Lipeng He ; Shuai Bi ; Hui Wang ; Baochun Ma ; Weisheng Liu ; Weifeng Bu
• 刊名：Langmuir
• 出版年：2012
• 出版时间：October 9, 2012
• 年：2012
• 卷：28
• 期：40
• 页码：14164-14171
• 全文大小：448K
• 年卷期：v.28,no.40(October 9, 2012)
• ISSN：1520-5827

文摘

The electrostatic combination of a cationic metallosupramolecular polyelectrolyte (Fe-MSP) with sulfonate-terminated polymers leads to the formation of metallosupramolecular brushes (MSBs). The resulting MSBs can self-assemble into vesicular structures in chloroform/methanol (v/v = 1:1) mixture solvents. The rigid-rod Fe-MSP chain has to bend for the formation of the vesicles, which accompanies the presence of a lateral tension and thus induces a spontaneous vesicle fusion with an hour-scale fusion time. For this much longer fusion process, the arrow-like protrusion, stalk-like intermediate, and hemifusion diaphragm are clearly observed by transmission electron microscopy. The complete fusion into larger vesicles significantly releases the lateral tension.