Search Results - "Dullens, Roel P A"

Towards Glasses with Permanent Stability by Yanagishima, Taiki, Russo, John, Dullens, Roel P. A., Tanaka, Hajime

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Two-Dimensional Melting of Colloidal Hard Spheres by Thorneywork, Alice L, Abbott, Joshua L, Aarts, Dirk G A L, Dullens, Roel P A

“…We study the melting of quasi-two-dimensional colloidal hard spheres by considering a tilted monolayer of particles in sedimentation-diffusion equilibrium. In…”
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Particle-Level Visualization of Hydrodynamic and Frictional Couplings in Dense Suspensions of Spherical Colloids by Yanagishima, Taiki, Liu, Yanyan, Tanaka, Hajime, Dullens, Roel P. A.

“…The rotational Brownian motion of colloidal spheres in dense suspensions reflects local hydrodynamics and contact forces, which are both key to nonlinear…”
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Anomalous Grain Growth in a Polycrystalline Monolayer of Colloidal Hard Spheres by Lavergne, François A., Aarts, Dirk G. A. L., Dullens, Roel P. A.

“…Understanding grain growth is key for controlling the microstructure and the mechanical properties of most polycrystalline materials, including metals, alloys,…”
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Core-Shell Particles for Simultaneous 3D Imaging and Optical Tweezing in Dense Colloidal Materials by Liu, Yanyan, Edmond, Kazem V., Curran, Arran, Bryant, Charles, Peng, Bo, Aarts, Dirk G. A. L., Sacanna, Stefano, Dullens, Roel P. A.

“…A new colloidal system that consists of core–shell “probe” particles embedded in an optically transparent “host” particle suspension is developed. This system…”
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A Landau–Squire Nanojet by Laohakunakorn, Nadanai, Gollnick, Benjamin, Moreno-Herrero, Fernando, Aarts, Dirk G. A. L, Dullens, Roel P. A, Ghosal, Sandip, Keyser, Ulrich F

“…Fluid jets are found in nature at all length scales from microscopic to cosmological. Here we report on an electroosmotically driven jet from a single glass…”
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Layer-by-Layer Growth of Binary Colloidal Crystals by Velikov, Krassimir P, Christova, Christina G, Dullens, Roel P A, van Blaaderen, Alfons

“…We report the growth of binary colloidal crystals with control over the crystal orientation through a simple layer-by-layer process. Well-ordered single binary…”
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Direct Observation of Grain Rotation-Induced Grain Coalescence in Two-Dimensional Colloidal Crystals by Moore, Lee J., Dear, Richard D., Summers, Michael D., Dullens, Roel P. A., Ritchie, Grant A. D.

“…A spatially modulated laser is used to produce multiple localized thermal gradients in a colloidal sample placed above a gold surface. We use an optical…”
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The effect of colloidal aggregates on fat crystal networks by Chauhan, Raamanand R, Dullens, Roel P A, Velikov, Krassimir P, Aarts, Dirk G A L

“…We investigate the role of a colloidal model system in the crystallization and network formation of lipids. This system consists of fractal fumed silica…”
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Colloidal Hard-Sphere Crystal Growth Frustrated by Large Spherical Impurities by Volkert W. A. de Villeneuve, Roel P. A. Dullens, Dirk G. A. L. Aarts, Groeneveld, Esther, Scherff, Johannes H., Kegel, Willem K., Henk N. W. Lekkerkerker

“…Impurities affect the nucleation, growth, and structure of crystals. Here we report the effect of large, spherical, polymethylmethacrylate impurities on the…”
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Synthesis of Rough Colloidal SU‑8 Rods and Bananas via Nanoprecipitation by Fernández-Rico, Carla, Urbach, Jeffrey S, Dullens, Roel P. A

“…Surface roughness plays an important role in determining the mechanical properties, wettability, and self-assembly in colloidal systems. In this work, we…”
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Colloidal Organosilica Spheres for Three-Dimensional Confocal Microscopy by Liu, Yanyan, Yanagishima, Taiki, Curran, Arran, Edmond, Kazem V, Sacanna, Stefano, Dullens, Roel P. A

“…We describe the synthesis and application of 3-(trimethoxysilyl)­propyl methacrylate (TPM) particles as a colloidal model system for three-dimensional (3D)…”
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Effect of Hydrodynamic Interactions on Self-Diffusion of Quasi-Two-Dimensional Colloidal Hard Spheres by Thorneywork, Alice L, Rozas, Roberto E, Dullens, Roel P A, Horbach, Jürgen

“…We compare experimental results from a quasi-two-dimensional colloidal hard sphere fluid to a Monte Carlo simulation of hard disks with small particle…”
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Model-Free Measurement of the Pair Potential in Colloidal Fluids Using Optical Microscopy by Stones, Adam Edward, Dullens, Roel P. A., Aarts, Dirk G. A. L.

“…We report a straightforward, model-free approach for measuring pair potentials from particle-coordinate data, based on enforcing consistency between the pair…”
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Spearheading a new era in complex colloid synthesis with TPM and other silanes by Kamp, Marlous, Sacanna, Stefano, Dullens, Roel P. A.

“…Colloid science has recently grown substantially owing to the innovative use of silane coupling agents (SCAs), especially 3-trimethoxysilylpropyl…”
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Transport of a colloidal particle driven across a temporally oscillating optical potential energy landscape by Abbott, Joshua L, Straube, Arthur V, Aarts, Dirk G A L, Dullens, Roel P A

“…A colloidal particle is driven across a temporally oscillating one-dimensional optical potential energy landscape and its particle motion is analysed…”
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Segregated Ice Growth in a Suspension of Colloidal Particles by Schollick, Julia M. H, Style, Robert W, Curran, Arran, Wettlaufer, John S, Dufresne, Eric R, Warren, Patrick B, Velikov, Krassimir P, Dullens, Roel P. A, Aarts, Dirk G. A. L

“…We study the freezing of a dispersion of colloidal silica particles in water, focusing on the formation of segregated ice in the form of ice lenses. Local…”
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Equilibrium Grain Boundary Segregation and Clustering of Impurities in Colloidal Polycrystalline Monolayers by Lavergne, François A, Diana, Samuel, Aarts, Dirk G. A. L, Dullens, Roel P. A

“…We investigate the segregation of impurities to grain boundaries in colloidal polycrystalline monolayers using video microscopy. A model colloidal alloy is…”
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Quantitative real-space analysis of self-assembled structures of magnetic dipolar colloids by Klokkenburg, Mark, Dullens, Roel P A, Kegel, Willem K, Erné, Ben H, Philipse, Albert P

“…We present the first real-space analysis on a single-particle level of the dipolar chains and branched clusters self-assembling in magnetic fluids in zero…”
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Confinement induced splay-to-bend transition of colloidal rods by Dammone, Oliver J, Zacharoudiou, Ioannis, Dullens, Roel P A, Yeomans, Julia M, Lettinga, M P, Aarts, Dirk G A L

“…We study the nematic phase of rodlike f d-virus particles confined to channels with wedge-structured walls. Using laser scanning confocal microscopy we observe…”
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