Structure and electrochemistry of self-organized fullerene-lipid bilayer films

Chemistry : a European Journal
T NakanishiN Nakashima

Abstract

The unique properties of C(60)-bearing artificial lipids with three C(16) (lipid 1), C(14) (lipid 2), or C(12) (lipid 3) alkyl chains have been characterized by a variety of techniques, including (13)C NMR, UV/Vis, and FT-IR spectroscopies, differential scanning calorimetry (DSC), X-ray diffraction, and electrochemistry. The (13)C NMR and UV/Vis spectra show that the lipids 1-3 have a closed aziridine structure at a 6/6-ring junction of C(60). The DSC data reveal that cast films of 1 exhibit two endothermic peaks at temperature ranges of 35-40 degrees C (main transition) and 47-49 degrees C (subtransition) in air, water, and 0.5 M aqueous tetraethylammonium chloride solution, while cast films of 2 and 3 each display one endothermic peak at 50-57 degrees C. The results of temperature-dependent FT-IR and UV/Vis studies of cast films of 1-3, together with the above data, reveal that the main peak in the DSC thermogram of a film of 1 can be attributed to a typical phase transition as seen in lipid bilayer membranes, while the sub-endothermic peak seen with 1 and the peaks for 2 and 3 stem from a change in the orientation of the C(60) moieties. X-ray diffraction patterns of each of the cast films of 1-3 show a diffraction peak corre...Continue Reading

Citations

Apr 29, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Yanjing Chen, Geoffrey D Bothun
Aug 9, 2007·Journal of Nanobiotechnology·Ranga ParthaJodie L Conyers
Dec 8, 2005·Chemical Communications : Chem Comm·Takashi NakanishiKatsuhiko Ariga
Mar 13, 2008·Science and Technology of Advanced Materials·Katsuhiko ArigaSomobrata Acharya
Apr 5, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Pu ZhangDaoben Zhu
May 11, 2006·Journal of the American Chemical Society·Takashi NakanishiDirk G Kurth
Dec 23, 2004·Chemistry : a European Journal·Tierui ZhangCharl F J Faul
Mar 1, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Hongguang LiTakashi Nakanishi
May 24, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Hongguang LiTakashi Nakanishi
Dec 29, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Chisato HiranoYutaka Takaguchi
Oct 19, 2007·Bioconjugate Chemistry·Shigekatsu FujiiShunsaku Kimura
Aug 10, 2006·Journal of the American Chemical Society·Tsuyoshi MichinobuKatsuhiko Ariga

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