Threaded Rings that Swim in Excitable Media (2019)
Journal Article
Cincotti, A., Maucher, F., Evans, D., Chapin, B. M., Horner, K., Bromley, E., …Sutcliffe, P. (2019). Threaded Rings that Swim in Excitable Media. Physical Review Letters, 123(25), Article 258102. https://doi.org/10.1103/physrevlett.123.258102

Cardiac tissue and the Belousov-Zhabotinsky reaction provide two notable examples of excitable media that support scroll waves, in which a filament core is the source of spiral waves of excitation. Here we consider a novel topological configuration i... Read More about Threaded Rings that Swim in Excitable Media.

Harnessing energy landscape exploration to control the buckling of cylindrical shells (2019)
Journal Article
Panter, J., Chen, J., Zhang, T., & Kusumaatmaja, H. (2019). Harnessing energy landscape exploration to control the buckling of cylindrical shells. Communications Physics, 2, Article 151. https://doi.org/10.1038/s42005-019-0251-4

Even for relatively simple thin shell morphologies, many di↵erent buckled configurations can be stable simultaneously. Which state is observed in practice is highly sensitive to both environmental perturbations and shell imperfections. The complexity... Read More about Harnessing energy landscape exploration to control the buckling of cylindrical shells.

Learning dynamical information from static protein and sequencing data (2019)
Journal Article
Pearce, P., Woodhouse, F., Forrow, A., Kelly, A., Kusumaatmaja, H., & Dunkel, J. (2019). Learning dynamical information from static protein and sequencing data. Nature Communications, 10, Article 5368. https://doi.org/10.1038/s41467-019-13307-x

Many complex processes, from protein folding to neuronal network dynamics, can be described as stochastic exploration of a high-dimensional energy landscape. While efficient algorithms for cluster detection in high-dimensional spaces have been develo... Read More about Learning dynamical information from static protein and sequencing data.

Morphological analysis of chiral rod clusters from a coarse-grained single-site chiral potential (2019)
Journal Article
Sutherland, B., Olesen, S., Kusumaatmaja, H., Morgan, J., & Wales, D. (2019). Morphological analysis of chiral rod clusters from a coarse-grained single-site chiral potential. Soft Matter, 15(40), 8147-8155. https://doi.org/10.1039/c9sm01343a

We present a coarse-grained single-site potential for simulating chiral interactions, with adjustable strength, handedness, and preferred twist angle. As an application, we perform basin-hopping global optimisation to predict the favoured geometries... Read More about Morphological analysis of chiral rod clusters from a coarse-grained single-site chiral potential.

Slow Coarsening in Jammed Athermal Soft Particle Suspensions (2019)
Journal Article
Chacko, R., Sollich, P., & Fielding, S. (2019). Slow Coarsening in Jammed Athermal Soft Particle Suspensions. Physical Review Letters, 123(10), Article 108001. https://doi.org/10.1103/physrevlett.123.108001

We simulate a densely jammed, athermal assembly of repulsive soft particles immersed in a solvent. Starting from an initial condition corresponding to a quench from a high temperature, we find nontrivial slow dynamics driven by a gradual release of s... Read More about Slow Coarsening in Jammed Athermal Soft Particle Suspensions.

Wetting boundaries for a ternary high-density-ratio lattice Boltzmann method (2019)
Journal Article
Bala, N., Pepona, M., Karlin, I., Kusumaatmaja, H., & Semprebon, C. (2019). Wetting boundaries for a ternary high-density-ratio lattice Boltzmann method. Physical Review E, 100(1), Article 013308. https://doi.org/10.1103/physreve.100.013308

We extend a recently proposed ternary free-energy lattice Boltzmann model with high density contrast [Phys. Rev. Lett. 120, 234501 (2018)] by incorporating wetting boundaries at solid walls. The approaches are based on forcing and geometric schemes,... Read More about Wetting boundaries for a ternary high-density-ratio lattice Boltzmann method.

Edge fracture instability in sheared complex fluids: Onset criterion and possible mitigation strategy (2019)
Journal Article
Hemingway, E. J., & Fielding, S. M. (2019). Edge fracture instability in sheared complex fluids: Onset criterion and possible mitigation strategy. Journal of Rheology, 63(5), https://doi.org/10.1122/1.5095717

We perform a detailed theoretical study of the edge fracture instability, which commonly destabilizes the fluid-air interface during strong shear flows of entangled polymeric fluids, leading to unreliable rheological measurements. By means of direct... Read More about Edge fracture instability in sheared complex fluids: Onset criterion and possible mitigation strategy.

Linear instability of shear thinning pressure driven channel flow (2019)
Journal Article
Barlow, H., Hemingway, E., Clarke, A., & Fielding, S. (2019). Linear instability of shear thinning pressure driven channel flow. Journal of Non-Newtonian Fluid Mechanics, 270, 66-78. https://doi.org/10.1016/j.jnnfm.2019.07.004

We study theoretically pressure driven planar channel flow of shear thinning viscoelastic fluids. Combining linear stability analysis and full nonlinear simulation, we study the instability of an initially one-dimensional base state to the of two-dim... Read More about Linear instability of shear thinning pressure driven channel flow.

Revealing Resonance Effects and Intramolecular Dipole Interactions in the Positional Isomers of Benzonitrile-Core Thermally Activated Delayed Fluorescence Materials (2019)
Journal Article
Kukhta, N., Higginbotham, H., Matulaitis, T., Danos, A., Bismillah, A., Haase, N., …Monkman, A. (2019). Revealing Resonance Effects and Intramolecular Dipole Interactions in the Positional Isomers of Benzonitrile-Core Thermally Activated Delayed Fluorescence Materials. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(30), 9184-9194. https://doi.org/10.1039/c9tc02742d

We report on the properties of the three positional isomers of (2,7-di-tert-butyl-9,9-dimethylacridin-10(9H)-yl)benzonitrile, which are found to have comparable donor steric environments and donor–acceptor dihedral angles. An unexpected intramolecula... Read More about Revealing Resonance Effects and Intramolecular Dipole Interactions in the Positional Isomers of Benzonitrile-Core Thermally Activated Delayed Fluorescence Materials.

Multifaceted design optimization for superomniphobic surfaces (2019)
Journal Article
Panter, J., Gizaw, Y., & Kusumaatmaja, H. (2019). Multifaceted design optimization for superomniphobic surfaces. Science Advances, 5(6), Article eaav7328. https://doi.org/10.1126/sciadv.aav7328

Superomniphobic textures are at the frontier of surface design for vast arrays of applications. Despite recent substantial advances in fabrication methods for reentrant and doubly reentrant microstructures, design optimization remains a major challen... Read More about Multifaceted design optimization for superomniphobic surfaces.

Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials (2019)
Journal Article
Etherington, M. K., Kukhta, N. A., Higginbotham, H. F., Danos, A., Bismillah, A. N., Graves, D. R., …Monkman, A. P. (2019). Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials. Journal of Physical Chemistry C, 123(17), 11109-11117. https://doi.org/10.1021/acs.jpcc.9b01458

We expose significant changes in emission color of carbazole-based thermally activated delayed fluorescence (TADF) emitters that arise through the presence of persistent dimer states in thin films and organic light-emitting diodes(OLEDs). Direct phot... Read More about Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials.

Long-lived ionic nano-domains can modulate the stiffness of soft interfaces (2019)
Journal Article
Trewby, W., Faraudo, J., & Voïtchovsky, K. (2019). Long-lived ionic nano-domains can modulate the stiffness of soft interfaces. Nanoscale, 11(10), 4376-4384. https://doi.org/10.1039/c8nr06339g

Metal ions underpin countless processes at bio-interfaces, including maintaining electroneutrality, modifying mechanical properties and driving bioenergetic activity. These processes are typically described by ions behaving as independently diffusing... Read More about Long-lived ionic nano-domains can modulate the stiffness of soft interfaces.

Biophysical insights from supported lipid patches (2019)
Book Chapter
Miller, E., Stubbington, L., Dinet, C., & Staykova, M. (2019). Biophysical insights from supported lipid patches. In A. Iglič, M. Rappolt, & A. J. García-Sáez (Eds.), Advances in Biomembranes and Lipid Self-Assembly (23-48). Elsevier. https://doi.org/10.1016/bs.abl.2019.01.004

Supported lipid bilayer (SLB) patches have emerged in recent years as a convenient system to study membrane-substrate interactions, membrane mechanics, and interaction of membranes with other molecules, due to the possibility of tracking their area c... Read More about Biophysical insights from supported lipid patches.

The Bar-Hinge Motor: A synthetic protein design exploiting conformational switching to achieve directional motility (2019)
Journal Article
Small, L., Zuckermann, M., Sessions, R., Curmi, P., Linke, H., Forde, N., & Bromley, E. (2019). The Bar-Hinge Motor: A synthetic protein design exploiting conformational switching to achieve directional motility. New Journal of Physics, 21, Article 013002. https://doi.org/10.1088/1367-2630/aaf3ca

One challenge to synthetic biology is to design functional machines from natural building blocks, from individual amino acids up to larger motifs such as the coiled coil. Here we investigate a novel bipedal motor concept, the Bar-Hinge Motor (BHM), a... Read More about The Bar-Hinge Motor: A synthetic protein design exploiting conformational switching to achieve directional motility.

Multicomponent flow on curved surfaces: A vielbein lattice Boltzmann approach (2019)
Journal Article
Ambrus, V., Busuioc, S., Wagner, A., Paillusson, F., & Kusumaatmaja, H. (2019). Multicomponent flow on curved surfaces: A vielbein lattice Boltzmann approach. Physical Review E, 100, https://doi.org/10.1103/physreve.100.063306

We develop and implement a novel finite difference lattice Boltzmann scheme to study multicomponent flows on curved surfaces, coupling the continuity and Navier-Stokes equations with the Cahn-Hilliard equation to track the evolution of the binary flu... Read More about Multicomponent flow on curved surfaces: A vielbein lattice Boltzmann approach.