Self-assembled aggregates and molecular bilayer films of a double-chain fullerene lipid: Structure and electrochemistry
Self-assembled aggregates and molecular bilayer films of a double-chain fullerene lipid: Structure and electrochemistry
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DOI：
10.1002/asia.200600229
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发表时间：
2006-12-01
影响因子：
4.1
通讯作者：
Nakashima, Naotoshi
中科院分区：
文献类型：
--
作者：
Murakami, Hiroto;Nakanishi, Takashi;Nakashima, Naotoshi
描述了C-60、带有两个十八烷基链的富勒烯(脂1)的自聚集行为以及1的铸膜层的结构和电化学性质。我们还研究了三个以前报道的化合物在有机溶剂中的自聚集行为：C-60分别具有三个十六基(脂2)、十四基(脂3)或十二基(脂4)链。醇中的富勒烯类脂自发形成球形聚集体，其直径与烷基链长、富勒烯类脂的浓度和溶剂a的极性有关。聚集体的形貌表现出温度依赖性。1的铸膜层形成了多分子双层结构，经历了典型的脂类双层膜的相变。在水介质中，1的铸膜层在电极上的电化学行为表现出温度依赖性。
The self-aggregation behavior of C-60, fullerenes that bear two octadecyl chains (lipid 1) as well as the structures and electrochemical properties of cast films of 1 are described. We also examined the self-aggregation behavior in organic solvents of three previously reported compounds: C-60 with three each of hexadecyl (lipid 2), tetradecyl (lipid 3), or dodecyl (lipid 4) chains. The fullerene lipids in alcohols spontaneously formed spherical aggregates, whose diameters are related to the alkyl-chain lengths, concentrations of the fullerene lipids, and the solvent a polarity. The morphologies of the aggregates showed temperature dependence. Cast films of 1 formed multimolecular bilayer structures that undergo a phase transition typical of lipid bilayer membranes. The electrochemistry of cast films of 1 on an electrode in aqueous medium exhibits temperature dependence.