Small-angle neutron scattering from heavy water in the vicinity of the critical point

2000 ◽  
Vol 112 (1) ◽  
pp. 268-274 ◽  
Author(s):  
M. Bonetti ◽  
G. Romet-Lemonne ◽  
P. Calmettes ◽  
M.-C. Bellissent-Funel
Keyword(s):  
Neutron Scattering ◽  
Critical Point ◽  
Heavy Water ◽  
Small Angle ◽  
Small Angle Neutron Scattering

Octamer formation in lysozyme solutions at the initial crystallization stage detected by small-angle neutron scattering

2017 ◽  
Vol 73 (7) ◽  
pp. 591-599 ◽  
Author(s):  
Anastasiia S. Boikova ◽  
Yulia A. Dyakova ◽  
Kseniia B. Ilina ◽  
Petr V. Konarev ◽  
Alyona E. Kryukova ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Heavy Water ◽  
Small Angle ◽  
Maximum Concentration ◽  
Small Angle Neutron Scattering ◽  
Protein Concentration ◽  
Optimal Conditions ◽  
Optimal Temperature ◽  
A Minor ◽  
Crystallization Stage

Solutions of lysozyme in heavy water were studied by small-angle neutron scattering (SANS) at concentrations of 40, 20 and 10 mg ml−1with and without the addition of precipitant, and at temperatures of 10, 20 and 30°C. In addition to the expected protein monomers, dimeric and octameric species were identified in solutions at the maximum concentration and close to the optimal conditions for crystallization. An optimal temperature for octamer formation was identified and both deviation from this temperature and a reduction in protein concentration led to a significant decrease in the volume fractions of octamers detected. In the absence of precipitant, only monomers and a minor fraction of dimers are present in solution.

Droplet Interactions in Water-in-Carbon Dioxide Microemulsions Near the Critical Point:  A Small-Angle Neutron Scattering Study

2001 ◽  
Vol 105 (17) ◽  
pp. 3540-3548 ◽  
Author(s):  
C. T. Lee, ◽  
K. P. Johnston ◽  
H. J. Dai ◽  
H. D. Cochran ◽  
Y. B. Melnichenko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Neutron Scattering ◽  
Critical Point ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Scattering Study ◽  
Neutron Scattering Study
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