Premium
Self‐Assembled Aggregates and Molecular Bilayer Films of a Double‐Chain Fullerene Lipid: Structure and Electrochemistry
Author(s) -
Murakami Hiroto,
Nakanishi Takashi,
Morita Makoto,
Taniguchi Naoya,
Nakashima Naotoshi
Publication year - 2006
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200600229
Subject(s) - fullerene , bilayer , lipid bilayer , electrochemistry , alkyl , chemistry , self assembly , lipid bilayer phase behavior , phase (matter) , membrane , chemical engineering , crystallography , materials science , organic chemistry , electrode , biochemistry , engineering
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 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.