Selected videos

The isotropic - nematic transition for a system of hard cut spheres (a simple model of a discotic liquid crystal, e.g. a dispersed mineral like clay or Gibbsite). The system is slowly being squeezed, gradually increasing pressure until the transition occurs. Interestingly, the system's compressibility (related to the inverse of the slope of the plot on the right) is greater after the transition.

Snapshots of the 6 largest nematic micro-domains are shown just before the isotropic - nematic transition in systems of hard disks with different thicknesses. This shows nematic pre-ordering in the isotropic phase just before the transition is sensitive to the disk's shape.

Amine adsorption into MCM-41 with increasing number of amine molecules. A liquid-like bridge forms at higher densities, indicative of capilliary condensation. This shows that the performance of a carbon capture system based on this system is sensitive to the amine vapour pressure.

Formation of an equilibrium cluster fluid in a system of particles with competing short-range attractive and long-range repulsive interactions (an SALR fluid). Notice that the clusters form spontaneously here. Cluster size can be predicted quite accurately using an equation in our 2014 JCP paper. Recent experimental work (see papers by J. Sefcik at the University of Strathclyde) suggests that some amino acid solutions can display giant clusters similar to these.

Proof of the existence of the cluster vapour - cluster solid phase transition predicted by our 2014 JCP paper, although there are large fluctuations in the cluster crystal. This simulation is initiated from a central slab of particles, but the same result is obtained when initiated from a uniform dispersion. A cluster liquid phase is also predicted to exist; see our 2016 JCP paper for details.

wetting layer absorption
polymer-platelet nanocomposites
novel free energy methods