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Active Particles in Complex and Crowded Environments
- C. Bechinger, R. Leonardo, H. Lowen, C. Reichhardt, G. Volpe, G. Volpe
- Engineering
- 30 January 2016
Differently from passive Brownian particles, active particles, also known as self-propelled Brownian particles or microswimmers and nanoswimmers, are capable of taking up energy from their…
Effective interactions between electric double layers.
This review summarizes and assesses recent theoretical and experimental advances, with special emphasis on the effective interaction between charge-stabilized colloids, in the bulk or in confined…
Brownian motion of a self-propelled particle.
- Borge ten Hagen, S. V. Teeffelen, H. Lowen
- Mathematics
- 8 May 2010
Overdamped Brownian motion of a self-propelled particle is studied by solving the Langevin equation analytically. On top of translational and rotational diffusion, in the context of the presented…
Effective Cahn-Hilliard Equation for the Phase Separation of Active Brownian Particles
- T. Speck, Julian Bialk'e, A. Menzel, H. Lowen
- Physics
- 27 December 2013
The kinetic separation of repulsive active Brownian particles into a dense and a dilute phase is analyzed using a systematic coarse-graining strategy. We derive an effective Cahn-Hilliard equation on…
Dynamics of a Brownian circle swimmer
- S. V. Teeffelen, H. Lowen
- Physics
- 13 March 2008
Self-propelled particles move along circles rather than along a straight line when their driving force does not coincide with their propagation direction. Examples include confined bacteria and…
Homogeneous nucleation of colloidal melts under the influence of shearing fields
- R. Blaak, S. Auer, D. Frenkel, H. Lowen
- Materials Science
- 11 June 2004
We study the effect of shear flow on homogeneous crystal nucleation, using Brownian dynamics simulations in combination with an umbrella sampling-like technique. The symmetry breaking due to shear…
Active colloidal suspensions: Clustering and phase behavior
- Julian Bialk'e, T. Speck, H. Lowen
- Physics
- 25 July 2014
The contact angle of the colloidal liquid–gas interface and a hard wall
- P. Wessels, M. Schmidt, H. Lowen
- Physics
- 7 May 2004
We consider the Asakura–Oosawa–Vrij model of hard sphere colloids and ideal polymer coils in contact with a planar hard wall at (colloidal) liquid–gas coexistence. Using extensive numerical density…
Non-Gaussian behaviour of a self-propelled particle on a substrate
- Borge ten Hagen, S. V. Teeffelen, H. Lowen
- Physics
- 18 June 2009
The overdamped Brownian motion of a self-propelled particle which is driven by a projected internal force is studied by solving the Langevin equation analytically. The “active” particle under study…
Colloidal Brazil-nut effect in sediments of binary charged suspensions
- A. Esztermann, H. Lowen
- Physics
- 2 January 2004
Equilibrium sedimentation density profiles of charged binary colloidal suspensions are calculated by computer simulations and density-functional theory. For deionized samples, we predict a colloidal…
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