49 citations · 251 across the 14 of their papers we have counts for
14 papers
Cyclically sheared colloidal gels: structural change and delayed failure time
Himangsu Bhaumik, James E. Hallett, Tanniemola B. Liverpool +2
We present experiments and simulations on cyclically sheared colloidal gels, and probe their behaviour on several different length scales. The shearing induces structural changes i…
Colloidoscope: Detecting Dense Colloids in 3d with Deep Learning
Abdelwahab Kawafi, Lars Kürten, Levke Ortlieb +4
Colloidoscope is a deep learning pipeline employing a 3D residual Unet architecture, designed to enhance the tracking of dense colloidal suspensions through confocal microscopy. Th…
The human factor: results of a small-angle scattering data analysis Round Robin
Brian R. Pauw, Glen J. Smales, Andy S. Anker +46
A Round Robin study has been carried out to estimate the impact of the human element in small-angle scattering data analysis. Four corrected datasets were provided to participants…
Real Space Analysis of Colloidal Gels: Triumphs, Challenges and Future Directions
C. Patrick Royall, Malcolm A. Faers, Sian L. Fussell +1
Colloidal gels constitute an important class of materials found in many contexts and with a wide range of applications. Yet as matter far from equilibrium, gels exhibit a variety o…
Relaxation mechanisms in supercooled liquids past the Mode--Coupling Crossover: Cooperatively Re--arranging Regions vs Excitations
Levke Ortlieb, Trond S. Ingebrigtsen, James E. Hallett +2
Among the challenges in discriminating between theoretical approaches to the glass transition is obtaining suitable data. In particular, particle--resolved data in liquids supercoo…
Solidification and superlubricity with molecular alkane films
Alexander M. Smith, James E. Hallett, Susan Perkin
Hydrocarbon films confined between smooth mica surfaces have long provided an experimental playground for model studies of structure and dynamics of confined liquids. However funda…
The Devil is in the details: Pentagonal bipyramids and dynamic arrest
James E. Hallett, Francesco Turci, C. Patrick Royall
Colloidal suspensions have long been studied as a model for atomic and molecular systems, due to the ability to fluorescently label and individually track each particle, yielding p…
Competing Active and Passive Interactions Drive Amoeba-like Living Crystallites and Ordered Bands
Abraham Mauleon-Amieva, Majid Mosayebi, James E. Hallett +4
Swimmers and self-propelled particles are physical models for the collective behaviour and motility of a wide variety of living systems, such as bacteria colonies, bird flocks and…
Experimental Determination of Configurational Entropy in a Two-Dimensional Liquid under Random Pinning
Ian Williams, Francesco Turci, James E. Hallett +4
A quasi two-dimensional colloidal suspension is studied under the influence of immobilisation (pinning) of a random fraction of its particles. We introduce a novel experimental met…
Coupling between criticality and gelation in "sticky" spheres: A structural analysis
David Richard, James Hallett, Thomas Speck +1
We combine experiments and simulations to study the link between criticality and gelation in sticky spheres. We employ confocal microscopy to image colloid-polymer mixtures, and Mo…
Charge regulation of nonpolar colloids
James Hallett, David Gillespie, Robert Richardson +1
Individual colloids often carry a charge as a result of the dissociation (or adsorption) of weakly-ionized surface groups. The magnitude depends on the precise chemical environment…
Effects of vertical confinement on gelation and sedimentation of colloids
Azaima Razali, Christopher J. Fullerton, Francesco Turci +3
We consider the sedimentation of a colloidal gel under confinement in the direction of gravity. The confinement allows us to compare directly experiments and computer simulations,…
Experimental Evidence for a Structural-Dynamical Transition in Trajectory Space
Rattachai Pinchaipat, Matteo Campo, Francesco Turci +3
Among the key insights into the glass transition has been the identification of a non-equilibrium phase transition in trajectory space which reveals phase coexistence between the n…
Counterion Condensation on Spheres in the Salt-free Limit
David A. J. Gillespie, James E. Hallett, Oluwapemi Elujoba +3
A highly-charged spherical colloid in a salt-free environment exerts such a powerful attraction on its counterions that a certain fraction condenses onto the surface of a particle.…