Hydration structures around F-actin and myosin subfragment-1 (S1), which play central roles as counterparts in muscle contraction, were investigated by small-angle X-ray scattering (SAXS) and small-angle neutron scattering (SANS). The radius of gyration of chymotryptic S1 was evaluated to be 41.3±1.1 Å for SAXS, 40.1±3.0 Å for SANS in H2O, and 37.8±0.8 Å for SANS in D2O, respectively. The value...

Introduction In the past 15 years, much attention has been paid to the effects of shear flow on the structure of the lyotropic phase of surfactant systems, especially on the lamellar phase. Among them, the most striking result may be the transition from the lamellar phase to the "onion phase" where all the space is filled by multilamellar vesicles alone [1]. Although this type of transition has...

Due to the condition of the original material, there are unavoidable flaws in this reproduction. We have made every effort possible to provide you with the best copy available. If you are dissatisfied with this product and find it unusable, please contact Document Services as soon as possible. ABSTRACT Simultaneous determination of the lamellar morphological length scale and the grain size of s...

microscopy X rays Vis Infrared UV Neutrons scattering spectroscopy calorimetry chromatography density measurements 2 OUTLINE A host of characterization methods are used to investigate nanoscale structures at the morphological and/or molecular levels. These are listed here into broad categories: Some of these methods are briefly described here. SCATTERING METHODS This author's research interests...

The structure of crotapotin, a protein extracted, from the venom of the Crotalus durissus terrificus, in solution at pH = 1.5, was studied by SAXS. The experimental results yield structural parameter values of the molecular radius of gyration Rg = 13.6 A, volume v = 16.2 x 10(3) A3 A3 and maximal dimension Dmax = 46 A. The distance distribution function deduced from the scattering measurements ...