Search results for "ELASTIC NEUTRON-SCATTERING"

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Hydration dependent dynamics in sol-gel encapsulated myoglobin.

2008

In this work we study the effect of hydration on the dynamics of a protein in confined geometry, i.e. encapsulated in a porous silica matrix. Using elastic neutron scattering we investigate the temperature dependence of the mean square displacements of non-exchangeable hydrogen atoms of sol-gel encapsulated met-myoglobin. The study is extended to samples at 0.2, 0.3 and 0.5 g water/g protein fractions and comparison is made with met-myoglobin powders at the same average hydration and with a dry powder sample. Elastic data are analysed using a model of dynamical heterogeneity to take into account deviations of elastic intensity from gaussian behaviour in a large momentum transfer range and r…

HydrogenBiophysicsHydrationchemistry.chemical_elementSol–gelNeutron scatteringELASTIC NEUTRON-SCATTERINGPROTEIN HYDRATIONAnimalsDynamical heterogeneityPorositySol-gelSPECTROSCOPYMyoglobinProtein dynamicsSolvent dynamicMomentum transferTemperatureWaterGeneral MedicineElasticityCrystallographyNeutron DiffractionSolvation shellchemistryChemical physicsProtein dynamicSilica hydrogelsGelsTRANSITIONHydrogenEuropean biophysics journal : EBJ
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