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  • Title: Lipid bilayer tethered inside a nanoporous support: a solid-state nuclear magnetic resonance investigation.
    Author: Wattraint O, Arnold A, Auger M, Bourdillon C, Sarazin C.
    Journal: Anal Biochem; 2005 Jan 15; 336(2):253-61. PubMed ID: 15620890.
    Abstract:
    (31)P and (1)H solid-state nuclear magnetic resonance (NMR) experiments have been designed with the aim of studying directly the formation of supported bilayers tethered inside nanoporous aluminum oxide supports as a model of biomimetic membranes. The static and magic angle spinning (31)P NMR spectra of the supported bilayers have been compared with the experimental and simulated spectra of a simpler model with cylindrical geometry, namely a phospholipid bilayer adsorbed on an oriented polymer sheet. The broadening observed for the nanoporous model is most likely due to the presence of paramagnetic ions in the aluminum oxide. A phospholipid lateral diffusion coefficient of (2.8 +/- 0.4) x 10(-8) cm(2)/s has been measured for the tethered bilayer on a spherical support, indicating a good fluidity as compared with adsorbed membrane models.
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