Deuterium magnetic resonance: theory and application to lipid membranes.
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Proton and carbon-13 nmr spectra of unsonicated lipid bilayers and biological membranes are generally dominated by strong proton-proton and proton–carbon dipolar interactions and are rather difficult to analyse.Abstract:
Proton and carbon-13 nmr spectra of unsonicated lipid bilayers and biological membranes are generally dominated by strong proton–proton and proton–carbon dipolar interactions. As a result the spectra contain a large number of overlapping resonances and are rather difficult to analyse. Nevertheless, important information on the structure and dynamic behaviour of lipid systems has been provided by these techniques (Wennerstrom & Lindblom, 1977).read more
Citations
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Journal ArticleDOI
A detailed analysis of the motions of cholesterol in biological membranes by 2H-NMR relaxation.
Erick J. Dufourc,Ian C.P. Smith +1 more
TL;DR: The fastest motion of cholesterol in DMPC could be a very rapid libration, 'wobbling', which does not contribute significantly to the T1z relaxation of cholesterol at physiological temperatures and Larmor frequencies smaller than 50 MHz, but does reduce the ordering of the cholesterol molecule inDMPC from S0 = 1 to S1 = 0.8.
Journal ArticleDOI
Low hydration phase properties of phospholipid mixtures Evidence for dehydration-induced fluid-fluid separations
TL;DR: In this paper, an experimental investigation of the low hydration phase properties of mixed-chain phospholipid mixtures is described, where 2H (D2O) NMR, X-ray diffraction and differential scanning calorimetry are used to elucidate the phase properties.
Journal ArticleDOI
Binding competition to the POPG lipid bilayer of Ca2+, Mg2+, Na+, and K+ in different ion mixtures and biological implication.
TL;DR: The study suggests that the structure of the lipid bilayer is influenced dominantly by the concentration of Ca(2+) ions, which provides a good explanation for a variety of biological processes relevant to Ca( 2+) and Mg(2-) regulations, such as membrane fusion.
Book ChapterDOI
Deuterium NMR in the Study of Site-Specific Natural Isotope Fractionation (SNIF-NMR)
TL;DR: In this paper, the isotope content and the ratio of deuterium and hydrogen atoms in a given molecular species, D/H, are not constant on Earth and the original approaches provided by the NMR study of Site-Specc Natural Isotope Fractionation of hydrogen must be seen in this context.
Journal ArticleDOI
The dynamics of hydrogen bonds and proton transfer in zeolites - joint vistas from solid-state NMR and quantum chemistry
TL;DR: In this article, different aspects of zeolite Bronsted acid sites are reviewed from the perspective of solid-state NMR spectroscopy and quantum-chemical calculations, and the strength of the combined use of these two methods is demonstrated.
References
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Book
Principles of magnetic resonance
TL;DR: In this article, the effect of changing the precession frequency of the magnetic field has been studied using NMR to study rate properties. But the effect is limited to the case of double and double resonance.
Journal ArticleDOI
Molecular motion in spin-labeled phospholipids and membranes
Book
Spin Labeling: Theory And Applications
TL;DR: This special topics volume represents a complete update on new theoretical aspects and applications of the spin-label method and includes an IBM-compatible diskette supplied by David Schneider and Jack Freed which contains fast, accurate, ready-to-use software for slow-motion simulations.