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- J A van Meel, B Charbonneau, A Fortini, P Charbonneau
- Physical review. E, Statistical, nonlinear, and…
- 2009

We recently found that crystallization of monodisperse hard spheres from the bulk fluid faces a much higher free-energy barrier in four than in three dimensions at equivalent supersaturation, due to the increased geometrical frustration between the simplex-based fluid order and the crystal [J. A. van Meel, D. Frenkel, and P. Charbonneau, Phys. Rev. E 79,… (More)

- Alexandra Schweikart, Andrea Fortini, Alexander Wittemann, Matthias Schmidt, Andreas Ferya
- 2012

We created hierarchically ordered structures of nanoparticles on smooth plan ar hydrophilic substrates by drying colloidal dispersions in confinement under macroscopic stamps with microscopically wrinkled surfaces. Experiments were carried out with model nano-particle suspensions that possess high colloidal stability and mono-dispersity. The structures… (More)

- Andrea Fortini, Eduardo Sanz, Marjolein Dijkstra
- Physical review. E, Statistical, nonlinear, and…
- 2008

We systematically study the relationship between equilibrium and nonequilibrium phase diagrams of a system of short-ranged attractive colloids. Using Monte Carlo and Brownian dynamics simulations we find a window of enhanced crystallization that is limited at high interaction strength by a slowing down of the dynamics and at low interaction strength by the… (More)

- Ingmar Schwarz, Andrea Fortini, Claudia Simone Wagner, Alexander Wittemann, Matthias Schmidt
- The Journal of chemical physics
- 2011

We consider a theoretical model for a binary mixture of colloidal particles and spherical emulsion droplets. The hard sphere colloids interact via additional short-ranged attraction and long-ranged repulsion. The droplet-colloid interaction is an attractive well at the droplet surface, which induces the Pickering effect. The droplet-droplet interaction is a… (More)

- Andrea Fortini, Marjolein Dijkstra
- Journal of physics. Condensed matter : an…
- 2006

We study the phase behaviour of hard spheres confined between two parallel hard plates using extensive computer simulations. We determine the full equilibrium phase diagram for arbitrary densities and plate separations from one to five hard-sphere diameters using free energy calculations. We find a first-order fluid-solid transition, which corresponds to… (More)

- Hai Pham, Andrea Fortini, Matthias Schmidt, Gert Jan Vroege
- 2017

We study the cluster structures of one-patch colloidal particles generated by droplet evaporation using Monte Carlo simulations. The addition of anisotropic patch–patch interaction between the colloids produces different cluster configurations. We find a well-defined category of sphere packing structures that minimize the second moment of mass distribution… (More)

- Andrea Fortini, Ignacio Martín-Fabiani, +6 authors Richard P Sear
- Physical review letters
- 2016

In simulations and experiments, we study the drying of films containing mixtures of large and small colloidal particles in water. During drying, the mixture stratifies into a layer of the larger particles at the bottom with a layer of the smaller particles on top. We developed a model to show that a gradient in osmotic pressure, which develops dynamically… (More)

- André Utgenannt, Ross Maspero, +7 authors Joseph L. Keddie
- 2016

- André Utgenannt, Ross Maspero, +7 authors Joseph L Keddie
- ACS nano
- 2016

When fabricating photonic crystals from suspensions in volatile liquids using the horizontal deposition method, the conventional approach is to evaporate slowly to increase the time for particles to settle in an ordered, periodic close-packed structure. Here, we show that the greatest ordering of 10 nm aqueous gold nanoparticles (AuNPs) in a template of… (More)

- Andrea Fortini, Daniel de Las Heras, Joseph M Brader, Matthias Schmidt
- Physical review letters
- 2014

Theoretical approaches to nonequilibrium many-body dynamics generally rest upon an adiabatic assumption, whereby the true dynamics is represented as a sequence of equilibrium states. Going beyond this simple approximation is a notoriously difficult problem. For the case of classical Brownian many-body dynamics, we present a simulation method that allows us… (More)