19F nuclear magnetic resonance studies of lipid bilayer systems. 1

M. P.N. Gent, I. M. Armitage, J. H. Prestegard

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A fluorinated lipid, 1-palmitoyl-2-8,8-difiuoropalmitoyl-sn-glycero-3-phosphorylcholine, has been synthesized and the dynamic properties of lipid bilayer systems containing this molecule have been studied using fluorine-19 NMR. Spin-lattice relaxation rates and nuclear Overhauser effects have been measured over a range of temperatures and the results have been interpreted in terms of correlation times for specific motions involving the gem-difluoromethylene group. The correlation times are shown to be consistent with and 13C relaxation data of similar lipid bilayer systems. The data, however, prove to be particularly valuable in characterizing a motion on the time scale of translational diffusion.

Original languageEnglish (US)
Pages (from-to)3749-3755
Number of pages7
JournalJournal of the American Chemical Society
Issue number13
StatePublished - Jun 1 1976


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