ArticleBiophysical journal1997
Water translational motion at the bilayer interface: an NMR relaxation dispersion measurement.
Article in Biophysical journal, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Spatially Heterogeneous Surface Water Diffusivity around Structured Protein Surfaces at Equilibrium.Journal of the American Chemical Society · 2017Article
- Hydration Dynamics of a Peripheral Membrane Protein.Journal of the American Chemical Society · 2016Article
- Anomalously Rapid Hydration Water Diffusion Dynamics Near DNA Surfaces.Journal of the American Chemical Society · 2015Article
- Ion specific effects: decoupling ion-ion and ion-water interactions.Physical chemistry chemical physics : PCCP · 2015Article
- Nanometer-scale water- and proton-diffusion heterogeneities across water channels in polymer electrolyte membranes.Angewandte Chemie (International ed. in English) · 2015Article
- Coupled diffusion in lipid bilayers upon close approach.Journal of the American Chemical Society · 2015Article
- Cholesterol enhances surface water diffusion of phospholipid bilayers.The Journal of chemical physics · 2014Article
- Probing water density and dynamics in the chaperonin GroEL cavity.Journal of the American Chemical Society · 2014Article
- Specific ions modulate diffusion dynamics of hydration water on lipid membrane surfaces.Journal of the American Chemical Society · 2014Article
- Hydration dynamics as an intrinsic ruler for refining protein structure at lipid membrane interfaces.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- Quantitative cw Overhauser effect dynamic nuclear polarization for the analysis of local water dynamics.Progress in nuclear magnetic resonance spectroscopy · 2013Review
- Nonlinear scaling of surface water diffusion with bulk water viscosity of crowded solutions.Journal of the American Chemical Society · 2013Article
- Diffusional mechanisms augment the fluorine MR relaxation in paramagnetic perfluorocarbon nanoparticles that provides a "relaxation switch" for detecting cellular endosomal activation.Journal of magnetic resonance imaging : JMRI · 2011Article
- Site-specific hydration dynamics in the nonpolar core of a molten globule by dynamic nuclear polarization of water.Journal of the American Chemical Society · 2011Article
- Water-proton-spin-lattice-relaxation dispersion of paramagnetic protein solutions.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2011Article
- Local Water Dynamics in Coacervated Polyelectrolytes Monitored Through Dynamic Nuclear Polarization-Enhanced H NMR.Macromolecules · 2009Article
- Relaxation of protons by radicals in rotationally immobilized proteins.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2007Article
- High frequency dynamics in hemoglobin measured by magnetic relaxation dispersion.Biophysical journal · 2005Article
- A model for water motion in crystals of lysozyme based on an incoherent quasielastic neutron-scattering study.Biophysical journal · 2002Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Nuclear magnetic relaxation rates for water protons in aqueous palmitoyloleoylphosphatidylcholine vesicle suspensions containing different nitroxide free radical spin labels are reported as a function of magnetic field strength corresponding to proton Larmor frequencies from 10 kHz to 30 MHz. Under these conditions the water proton relaxation rate is determined by the magnetic coupling between the water protons and the paramagnetic nitroxide fixed on the phospholipid. This coupling is made time-dependent by the relative translational motion of the water proton spins past the nitroxide radical. Using theories developed by Freed and others, we interpret the NMR relaxation data in terms of localized water translational motion and find that the translational diffusion constant for water within approximately 10 A of the phospholipid surface is 6 x 10(-10) m2 s(-1) at 298 K. Similar results are obtained for three different nitroxide labels positioned at different points on the lipid. The diffusion is a thermally activated process with an activation energy only slightly higher than that for bulk water.
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