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Interaction of a small protein with water and other solutes: The case of Glut...
The tripeptide glutathione (GSH) is present in cells at millimolar concentrations, and the ratio of GSH to glutathione disulfide (GSSG) is critical to cellular redox balance.... -
Ageing of Laponite-water solutions
We require beam time on NIMROD in order to complete and continue a previous experiment (RB1010046) on Laponite - water suspensions. We have succesfully performed the experiment... -
Pressure dependence of the mean kinetic energy of water protons
In a recent experiment [RB810044] we have measured the mean kinetic energy in supercooled bulk water at three pressures values in the range 200-4000 bar in order to shed light... -
Liquid-liquid immiscibility and glass transitions in aqueous solutions
The microscopic structure of a dilute solution of LiCl in water is determined at different thermodynamic states in both the liquid and glassy phases. This solution exhibits... -
Structural characterization of water confined in MCM-41
By combining NDIS experiment and EPSR simulation we have been able to show with a previous experiment (RB 720500) two main phenomena for water confined in the MCM silica matrix.... -
Quantum differences in heavy and light water
The density maximum of water is probably its best known anomaly and attempts to account for this phenomenon go back to Roentgen in 1892 and possibly further. We would like to... -
Dynamics of water protons at low temperature and high pressure
We have recently performed a DINS experiment on water at 268 K, at pressures ranging from 25.6 MPa to 400 MPa. These data show that the mean kinetic energy of protons exhibits... -
Proton dynamics of water approaching the supercooled phase
In a recent DINS experiment (RB520101) we have possibly evidenced a new anomaly of supercooled water. Data at T = 269 and 271 K show clear differences in the proton neutron... -
Arrested states of clay-water suspensions
The unprecedented simultaneous accessibility of the low and high Q region available on NIMROD allows to tackle the issue of ageing of colloidal systems from the point of view of... -
Water proton's environment in Low Density and Very High Density Amorphous Ices
Amorphous polymorphism is one of the key concepts in our understanding of water, its structure, physical properties and anomalies. The basic idea is that liquid water at ambient... -
Solvent density fluctuations and H-bonding between solute molecules in superc...
Supercritical CO2 is an interesting medium for supercritical fluid extraction of aromatic molecules, due to the low temperatures and pressures needed to the process. Methanol is... -
Caffeine and the issue of hydrophobic hydration
Caffeine is a prototypical example of a planar, heteroatomic bicyclic, aromatic ring compound that, although somewhat polar, exhibits limited aqueous solubility and is... -
Measure of momentum distribution and mean kinetic energy of D2O
A careful experiment on Vesuvio has shown an anomalous mean kinetic energy, , excess in moderately supercooled bulk water. This energy excess has a clear signature in the shape...
