Fullerene Clustering in C70/N-Methyl-2-Pyrrolidone/Toluene Liquid System

The structural behavior of the liquid system based on a C70 in an N-methyl-2-pyrrolidone–toluene mixture has been analyzed, by using the small-angle neutron scattering method. The experimental results testify to the selective solvation in the system. The corresponding mechanisms have been discussed.

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Measurement of the Stiffness of Spin Waves in Amorphous Ferromagnetic Microwires by the Small-Angle Neutron Scattering Method

JETP Letters ◽

10.1134/s0021364019240056 ◽

2019 ◽

Vol 110 (12) ◽

pp. 793-798

Author(s):

S. V. Grigoriev ◽

K. A. Pshenichnyi ◽

I. A. Baraban ◽

V. V. Rodionova ◽

K. A. Chichai ◽

...

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Spin Waves ◽

Scattering Method

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Structural aspects of human lactoferrin in the iron-binding process studied by molecular dynamics and small-angle neutron scattering

The European Physical Journal E ◽

10.1140/epje/i2018-11720-x ◽

2018 ◽

Vol 41 (9) ◽

Cited By ~ 4

Author(s):

Lilia Anghel ◽

Aurel Radulescu ◽

Raul Victor Erhan

Keyword(s):

Molecular Dynamics ◽

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

The Body ◽

Human Lactoferrin ◽

Radius Of Gyration ◽

Scattering Method ◽

Iron Binding ◽

Binding Process

Abstract. Lactoferrin is a non-heme protein known for its ability to bind tightly Fe(III) ions in various physiological environments. Due to this feature lactoferrin plays an important role in the processes of iron regulation at the cellular level preventing the body from damages produced by high levels of free iron ions. The X-ray crystal structure of human lactoferrin shows that the iron-binding process leads to conformational changes within the protein structure. The present study was addressed to conformation stability of human lactoferrin in solution. Using molecular dynamics simulations, it was shown that Arg121 is the key amino acid in the stabilization of the Fe(III) ion in the N-lobe of human lactoferrin. The small-angle neutron scattering method allowed us to detect the structural differences between the open and closed conformation of human lactoferrin in solution. Our results indicate that the radius of gyration of apolactoferrin appears to be smaller than that of the hololactoferrin, $R_{g}=24.16(\pm 0.707)$ R g = 24 . 16 ( ± 0 . 707 ) Å and $R_{g}= 26.20(\pm 1.191)$ R g = 26 . 20 ( ± 1 . 191 ) Å, respectively. The low-resolution three-dimensional models computed for both forms of human lactoferrin in solution also show visible differences, both having a more compact conformation compared to the high-resolution structure. Graphical abstract

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Solutions of Stars Based on C60. Structural Behavior As Revealed by Small Angle Neutron Scattering

Macromolecules ◽

10.1021/ma060557k ◽

2007 ◽

Vol 40 (5) ◽

pp. 1643-1656 ◽

Cited By ~ 12

Author(s):

Claude Picot ◽

Fabrice Audouin ◽

Claude Mathis

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Structural Behavior

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Study of the heavy-fermion compound CeRu2Si2 by the small-angle neutron scattering method

JETP Letters ◽

10.1134/1.2029943 ◽

2005 ◽

Vol 81 (11) ◽

pp. 556-560 ◽

Cited By ~ 4

Author(s):

G. P. Kopitsa ◽

S. V. Grigoriev ◽

V. V. Runov ◽

S. V. Maleyev ◽

V. M. Garamus ◽

...

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Heavy Fermion ◽

Scattering Method ◽

Heavy Fermion Compound

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Multiple small-angle neutron scattering characterization of the densification of ceramics: application to microporous silica

Journal of Applied Crystallography ◽

10.1107/s0021889889007119 ◽

1989 ◽

Vol 22 (6) ◽

pp. 539-545 ◽

Cited By ~ 11

Author(s):

G. G. Long ◽

S. Krueger

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Mercury Porosimetry ◽

Porous Silica ◽

Bimodal Distribution ◽

Scattering Method ◽

Microporous Silica ◽

Order Of Magnitude ◽

Multiple Scattering Method

Multiple small-angle neutron scattering was used to characterize the microstructure evolution of porous silica as a function of thermal processing. This new technique offers a statistically significant determination of microstructure morphology in the 0.08–10 μm range, which was previously inaccessible without increasing the resolution of the currently available scattering spectroscopy beamlines. All of the scatterers, which in the present work are pores within ceramic bodies, are measured whether they are open or closed. Earlier mercury porosimetry and nitrogen desorption measurements of the microporous silica system indicated that there are two major populations of pores in this material, differing in pore size by approximately an order of magnitude. In this work, it was found that densification during the intermediate stages of sintering is accompanied by coarsening to radii > 0.22 μm within the population of large pores in microporous silica. In the late stages of sintering, there are no detectable pores with radii > 0.08 μm, and radii of gyration equal to 33 and 28 nm were measured. Finally, Monte Carlo simulations were carried out to complement the neutron-scattering measurements, to predict the influence on the results of the bimodal distribution, and to explore the sensitivity of the multiple-scattering method.

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On the Measurement of the Stiffness of Spin Waves in the Fe0.75Co0.25Si Helimagnet by the Small-Angle Neutron Scattering Method

JETP Letters ◽

10.1134/s0021364018100107 ◽

2018 ◽

Vol 107 (10) ◽

pp. 640-645 ◽

Cited By ~ 2

Author(s):

S. V. Grigoriev ◽

K. A. Pshenichnyi ◽

E. V. Altynbaev ◽

S.-A. Siegfried ◽

A. Heinemann ◽

...

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Spin Waves ◽

Scattering Method

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Application of the small-angle neutron scattering method to the study of radiation grafted polymer systems

Polymer Science U S S R ◽

10.1016/0032-3950(87)90480-1 ◽

1987 ◽

Vol 29 (4) ◽

pp. 986-991 ◽

Cited By ~ 1

Author(s):

M.M. Agamalyan ◽

G.A. Yevmenenko ◽

I.Yu. Babkin ◽

S.B. Burukhin ◽

V.Ya. Dudarev ◽

...

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Scattering Method ◽

Polymer Systems ◽

Grafted Polymer

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Small-angle neutron scattering method for in situ studies of the dense cores of biological cells and vesicles: application to isolated neurosecretory vesicles

Journal of Applied Crystallography ◽

10.1107/s0021889889007491 ◽

1989 ◽

Vol 22 (6) ◽

pp. 546-555 ◽

Cited By ~ 2

Author(s):

S. Krueger ◽

J. W. Lynn ◽

J. T. Russell ◽

R. Nossal

Keyword(s):

Neutron Scattering ◽

Small Angle ◽

Small Angle Neutron Scattering ◽

Scattering Method ◽

Contrast Variation ◽

Model Calculations ◽

The Core ◽

Dense Cores ◽

Dense State

Small-angle neutron scattering was used to study the structure of the dense cores of intact neurosecretory vesicles (NSV). Contrast-variation techniques were used to minimize the scattering due to vesicle membranes and emphasize that due to the cores. By examination of a suspension of NSV membranes along with the intact NSV, residual membrane scattering was suppressed. The resultant scattering is inconsistent with model calculations which assume that the dense state of the vesicle cores is achieved by random dense packing or crystallization of small globular particles. Rather, the data suggest that the core constituents exist in a disordered state, forming aggregates with radii of gyration significantly larger than 100 Å.

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