Moving contact line dynamics: from diffuse to sharp interfaces (2015)
Journal Article
Kusumaatmaja, H., Hemingway, E., & Fielding, S. (2016). Moving contact line dynamics: from diffuse to sharp interfaces. Journal of Fluid Mechanics, 788, 209-227. https://doi.org/10.1017/jfm.2015.697

We reconcile two scaling laws that have been proposed in the literature for the slip length associated with a moving contact line in diffuse interface models, by demonstrating each to apply in a different regime of the ratio of the microscopic interf... Read More about Moving contact line dynamics: from diffuse to sharp interfaces.

Multi-scale Approaches to Dynamical Transmission of Protein Allostery (2015)
Conference Proceeding
Townsend, P., Rodgers, T., Pohl, E., Wilson, M., Cann, M., & McLeish, T. (2015). Multi-scale Approaches to Dynamical Transmission of Protein Allostery. In L. Olivares-Quiroz, O. Guzmán-López, & H. E. Jardón-Valadez (Eds.), Physical Biology of Proteins and Peptides: Theory, Experiment, and Simulation (141-152). https://doi.org/10.1007/978-3-319-21687-4_8

We review the idea that allosteric interactions can be transmitted not by structural switching but by the more subtle route of modulation of the amplitude of thermally-activated global dynamical modes in allosteric proteins. The effect is naturally a... Read More about Multi-scale Approaches to Dynamical Transmission of Protein Allostery.

Are there ergodic limits to evolution? Ergodic exploration of genome space and convergence (2015)
Journal Article
McLeish, T. (2015). Are there ergodic limits to evolution? Ergodic exploration of genome space and convergence. Interface Focus, 5(6), Article 20150041. https://doi.org/10.1098/rsfs.2015.0041

We examine the analogy between evolutionary dynamics and statistical mechanics to include the fundamental question of ergodicity—the representative exploration of the space of possible states (in the case of evolution this is genome space). Several p... Read More about Are there ergodic limits to evolution? Ergodic exploration of genome space and convergence.

Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure (2015)
Journal Article
Elbourne, A., Cronshaw, S., Voïtchovsky, K., Warr, G., & Atkin, R. (2015). Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure. Physical Chemistry Chemical Physics, 17(40), 26621-26628. https://doi.org/10.1039/c5cp04786b

In situ amplitude modulated-atomic force microscopy (AM-AFM) has been used to probe the nanostructure of mixtures of propylammonium nitrate (PAN) with n-alkanols near a mica surface. PAN is a protic ionic liquid (IL) which has a bicontinuous sponge-l... Read More about Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure.

Dynamic Transmission of Protein Allostery without Structural Change: Spatial Pathways or Global Modes? (2015)
Journal Article
McLeish, T., Cann, M., & Rodgers, T. (2015). Dynamic Transmission of Protein Allostery without Structural Change: Spatial Pathways or Global Modes?. Biophysical Journal, 109(6), 1240-1250. https://doi.org/10.1016/j.bpj.2015.08.009

We examine the contrast between mechanisms for allosteric signaling that involve structural change, and those that do not, from the perspective of allosteric pathways. In particular we treat in detail the case of fluctuation-allostery by which amplit... Read More about Dynamic Transmission of Protein Allostery without Structural Change: Spatial Pathways or Global Modes?.

Clustering and phase behaviour of attractive active particles with hydrodynamics (2015)
Journal Article
Matas Navarro, R., & Fielding, S. M. (2015). Clustering and phase behaviour of attractive active particles with hydrodynamics. Soft Matter, 11(38), 7525-7546. https://doi.org/10.1039/c5sm01061f

We simulate clustering, phase separation and hexatic ordering in a monolayered suspension of active squirming disks subject to an attractive Lennard-Jones-like pairwise interaction potential, taking hydrodynamic interactions between the particles ful... Read More about Clustering and phase behaviour of attractive active particles with hydrodynamics.

The role of protein-ligand contacts in allosteric regulation of the Escherichia coli Catabolite Activator Protein (2015)
Journal Article
Townsend, P., Rodgers, T., Glover, L., Korhonen, H., Richards, S., Colwell, L., …Cann, M. (2015). The role of protein-ligand contacts in allosteric regulation of the Escherichia coli Catabolite Activator Protein. Journal of Biological Chemistry, 290(36), 22225-22235. https://doi.org/10.1074/jbc.m115.669267

Allostery is a fundamental process by which ligand binding to a protein alters its activity at a distant site. Both experimental and theoretical evidence demonstrate that allostery can be communicated through altered slow relaxation protein dynamics... Read More about The role of protein-ligand contacts in allosteric regulation of the Escherichia coli Catabolite Activator Protein.

Growth and dissolution of calcite in the presence of adsorbed stearic acid (2015)
Journal Article
Ricci, M., Segura, J., Erickson, B., Fantner, G., Stellacci, F., & Voïtchovsky, K. (2015). Growth and dissolution of calcite in the presence of adsorbed stearic acid. Langmuir, 31(27), 7563-7571. https://doi.org/10.1021/acs.langmuir.5b01732

The interaction of organic molecules with the surface of calcite plays a central role in many geochemical, petrochemical and industrial processes and in biomineralization. Adsorbed organics, typically fatty acids, can interfere with the evolution of... Read More about Growth and dissolution of calcite in the presence of adsorbed stearic acid.

The search for affirming narratives for the future governance of thechnology : reflections from a science-theology persective on GMFuturos (2015)
Book Chapter
McLeish, T. (2016). The search for affirming narratives for the future governance of thechnology : reflections from a science-theology persective on GMFuturos. In P. Macnaghten, & S. Carro-Ripalda (Eds.), Governing agricultural sustainability : global lessons from GM crops (192-197). Routledge

A dimensionless ordered pull-through model of the mammalian lens epithelium evidences scaling across species and explains the age-dependent changes in cell density in the human lens (2015)
Journal Article
Wu, J., Wu, W., Tholozan, F., Saunter, C., Girkin, J., & Quinlan, R. (2015). A dimensionless ordered pull-through model of the mammalian lens epithelium evidences scaling across species and explains the age-dependent changes in cell density in the human lens. Journal of the Royal Society. Interface, 12(108), https://doi.org/10.1098/rsif.2015.0391

We present a mathematical (ordered pull-through; OPT) model of the cell-density profile for the mammalian lens epithelium together with new experimental data. The model is based upon dimensionless parameters, an important criterion for inter-species... Read More about A dimensionless ordered pull-through model of the mammalian lens epithelium evidences scaling across species and explains the age-dependent changes in cell density in the human lens.

Free energy pathways of a Multistable Liquid Crystal Device (2015)
Journal Article
Kusumaatmaja, H., & Majumdar, A. (2015). Free energy pathways of a Multistable Liquid Crystal Device. Soft Matter, 11(24), 4809-4817. https://doi.org/10.1039/c5sm00578g

The planar bistable device [Tsakonas et al., Appl. Phys. Lett., 2007, 90, 111913] is known to have two distinct classes of stable equilibria: the diagonal and rotated solutions. We model this device within the two-dimensional Landau-de Gennes theory,... Read More about Free energy pathways of a Multistable Liquid Crystal Device.

Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy (2015)
Journal Article
Kaku, K., Williams, A., Mendis, B., & Groves, C. (2015). Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy. Journal of Materials Chemistry C Materials for optical and electronic devices, 3(23), 6077-6085. https://doi.org/10.1039/c5tc00348b

In this article we present 1/f noise spectroscopy measurements relating to charge transport networks in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) space-charge limited diode (SCLD) and organic photovoltaic (OPV) devices... Read More about Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy.

Nanostructure of the Ionic Liquid-Graphite Stern Layer (2015)
Journal Article
Elbourne, A., McDonald, S., Voïtchovsky, K., Endres, F., Warr, G., & Atkin, R. (2015). Nanostructure of the Ionic Liquid-Graphite Stern Layer. ACS Nano, 9(7), 7608-7620. https://doi.org/10.1021/acsnano.5b02921

Ionic liquids (ILs) are attractive solvents for devices such as lithium ion batteries and capacitors, but their uptake is limited, partially because their Stern layer nanostructure is poorly understood compared to molecular solvents. Here, in situ am... Read More about Nanostructure of the Ionic Liquid-Graphite Stern Layer.

Motor properties from persistence: a linear molecular walker lacking spatial and temporal asymmetry (2015)
Journal Article
Zuckermann, M., Angstmann, C., Schmitt, R., Blab, G., Bromley, E., Forde, N., …Curmi, P. (2015). Motor properties from persistence: a linear molecular walker lacking spatial and temporal asymmetry. New Journal of Physics, 17(5), Article 055017. https://doi.org/10.1088/1367-2630/17/5/055017

The stepping direction of linear molecular motors is usually defined by a spatial asymmetry of the motor, its track, or both. Here we present a model for a molecular walker that undergoes biased directional motion along a symmetric track in the prese... Read More about Motor properties from persistence: a linear molecular walker lacking spatial and temporal asymmetry.

In-situ mapping of the molecular arrangement of amphiphilic dye molecules at the TiO2 surface of dye sensitized solar cells (2015)
Journal Article
Voïtchovsky, K., Ashari Astani, N., Tavernelli, I., Tetreault, N., Rothlisberger, U., Stellacci, F., …Arne Harms, H. (2015). In-situ mapping of the molecular arrangement of amphiphilic dye molecules at the TiO2 surface of dye sensitized solar cells. ACS Applied Materials and Interfaces, 7(20), 10834-10842. https://doi.org/10.1021/acsami.5b01638

Amphiphilic sensitizers are central to the function of dye-sensitized solar cells. It is known that the cell’s performance depends on the molecular arrangement and the density of the dye on the semiconductor surface, but a molecular-level picture of... Read More about In-situ mapping of the molecular arrangement of amphiphilic dye molecules at the TiO2 surface of dye sensitized solar cells.

Age-Dependent Modes of Extensional Necking Instability in Soft Glassy Materials (2015)
Journal Article
Hoyle, D. M., & Fielding, S. M. (2015). Age-Dependent Modes of Extensional Necking Instability in Soft Glassy Materials. Physical Review Letters, 114(15), Article 158301. https://doi.org/10.1103/physrevlett.114.158301

We study the instability to necking of an initially cylindrical filament of soft glassy material subject to extensional stretching. By numerical simulation of the soft glassy rheology model and a simplified fluidity model, and by analytical predictio... Read More about Age-Dependent Modes of Extensional Necking Instability in Soft Glassy Materials.

Surveying the free energy landscapes of continuum models: Application to soft matter systems (2015)
Journal Article
Kusumaatmaja, H. (2015). Surveying the free energy landscapes of continuum models: Application to soft matter systems. The Journal of Chemical Physics, 142(12), https://doi.org/10.1063/1.4916389

A variety of methods are developed for characterising the free energy landscapes of continuum, Landau-type free energy models. Using morphologies of lipid vesicles and a multistable liquid crystal device as examples, I show that the methods allow sys... Read More about Surveying the free energy landscapes of continuum models: Application to soft matter systems.

High-resolution AFM in liquid: what about the tip? (2015)
Journal Article
Voïtchovsky, K. (2015). High-resolution AFM in liquid: what about the tip?. Nanotechnology, 26(10), Article 100501. https://doi.org/10.1088/0957-4484/26/10/100501

Atomic Force Microscopy relies on a nanoscale tip to image and probe samples, often down to the sub-nanometre level. The measurement process depends on the precise geometry and chemical nature of the tip apex, and is therefore difficult to control. I... Read More about High-resolution AFM in liquid: what about the tip?.

Active Viscoelastic Matter: From Bacterial Drag Reduction to Turbulent Solids (2015)
Journal Article
Hemingway, E., Maitra, A., Banerjee, S., Marchetti, M., Ramaswamy, S., Fielding, S., & Cates, M. (2015). Active Viscoelastic Matter: From Bacterial Drag Reduction to Turbulent Solids. Physical Review Letters, 114(9), Article 098302. https://doi.org/10.1103/physrevlett.114.098302

A paradigm for internally driven matter is the active nematic liquid crystal, whereby the equations of a conventional nematic are supplemented by a minimal active stress that violates time-reversal symmetry. In practice, active fluids may have not on... Read More about Active Viscoelastic Matter: From Bacterial Drag Reduction to Turbulent Solids.

Global low-frequency motions in protein allostery: CAP as a model system (2015)
Journal Article
Townsend, P., Rogers, T., Pohl, E., Wilson, M., McLeish, T., & Cann, M. (2015). Global low-frequency motions in protein allostery: CAP as a model system. Biophysical Reviews, 7(2), 175-182. https://doi.org/10.1007/s12551-015-0163-9

Allostery is a fundamental process by which ligand binding to a protein alters its activity at a distant site. There is considerable evidence that allosteric cooperativity can be communicated by the modulation of protein dynamics without conformation... Read More about Global low-frequency motions in protein allostery: CAP as a model system.