Publications

Nima H Siboni, Alice L Thorneywork, Alicia Damm, Roel PA Dullens, and Juergen Horbach

Phys. Rev. E 2020 101 042609

The effect of hydrodynamic interactions (HI) on the long-time self-diffusion in quasi-two-dimensional fluids of paramagnetic colloidal particles is investigated using a combination of experiments and ...

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Adam E Stones, Roel PA Dullens, and Dirk GAL Aarts

Phys. Rev. Lett. 2019 123 098002

We report a straightforward, model-free approach for measuring pair potentials from particle-coordinate data, based on enforcing consistency between the pair distribution function measured separately ...

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Joshua L Abbott, Arthur V Straube, Dirk GAL Aarts, and Roel PA Dullens

New J. Phys. 2019 21 083027

A colloidal particle is driven across a temporally oscillating one-dimensional optical potential energy landscape and its particle motion is analysed. Different modes of dynamic mode locking are obser ...

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Francois A Lavergne, Arran Curran, Dirk GAL Aarts, and Roel PA Dullens

Eur. Phys. J. B 2019 92 142

We discuss the various mechanisms involved in the spontaneous shrinkage of circular grain boundaries in two-dimensional colloidal crystals. We provide experimental evidence that these grain boundary l ...

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Yanyan Liu, Taiki Yanagishima, Arran Curran, Kazem V Edmond, Stefano Sacanna, and Roel PA Dullens

Langmuir 2019 35 7962

We describe the synthesis and application of 3-(trimethoxysilyl)propyl methacrylate (TPM) particles as a colloidal model system for three-dimensional (3D) confocal scanning laser microscopy. The effec ...

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Carla Fernandez-Rico, Taiki Yanagishima, Arran Curran, Dirk GAL Aarts, and Roel PA Dullens

Adv. Mater. 2019 31 1807514

The bulk synthesis of fluorescent colloidal SU-8 polymer rods with tunable dimensions is described. The colloidal SU-8 rods are prepared by shearing an emulsion of SU-8 polymer droplets and then expos ...

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Joshua L Abbott, James A Spiers, Yongxiang Gao, Dirk GAL Aarts, and Roel PA Dullens

J. Phys. D: Appl. Phys 2019 52 024002

We study the static and dynamic behaviour of colloidal rods in an optical potential energy landscape. We explore the stable states of a colloidal rod in a single optical trap close to a flat wall. Her ...

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Kira E Klop, Roel PA Dullens, Paul M Lettinga, Sergei A Sergei, and Dirk GAL Aarts

Mol. Phys. 2018 116 2864

We confine a colloidal liquid crystal between parallel plates separated down to several times the rod length. By connecting the system to a reservoir we effectively create a grand canonical system, in ...

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Yongxiang Gao, Roel PA Dullens, and Dirk GAL Aarts

Soft Matter 2018 14 7119

Colloidal particles with asymmetric catalytic activities are emerging micro/nanomotors that harvest chemical energy for propulsion in fluids. It is of general interest to produce such particles with h ...

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Alice L Thorneywork, Simon K Schnyder, Dirk GAL Aarts, Juergen Horbach, Roland Roth, and Roel PA Dullens

Mol. Phys. 2018 116 3245

Hard disks are one of the simplest interacting many-body model system in two dimensions (2D). Here, we present a comprehensive set of measurements of the static structure factors for quasi-2D monodisp ...

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