Showing 2016 · cond-mat.softShow all

21 papers · 2 filters

cond-mat.soft2016★ 20 cited

Compression and reswelling of microgel particles after an osmotic shock

Jelle F. Sleeboom, Panayiotis Voudouris, Melle T. J. J. M. Punter +4

We use dedicated microfluidic devices to expose soft hydrogel particles to a rapid change in the externally applied osmotic pressure and observe a non-monotonic response: After an…

cond-mat.soft2016★ 31 cited

Van't Hoff's law for active suspensions: the role of the solvent chemical potential

Jeroen Rodenburg, Marjolein Dijkstra, René van Roij

We extend Van't Hoff's law for the osmotic pressure to a suspension of active Brownian particles. The propelled particles exert a net reaction force on the solvent, and thereby eit…

cond-mat.soft2016★ 63 cited

Reversible heating in electric double layer capacitors

Mathijs Janssen, René van Roij

A detailed comparison is made between different viewpoints on reversible heating in electric double layer capacitors. We show in the limit of slow charging that a combined Poisson-…

cond-mat.soft2016★ 83 cited

Chemical potential in active systems: predicting phase equilibrium from bulk equations of state?

Siddharth Paliwal, Jeroen Rodenburg, René van Roij +1

We derive a microscopic expression for a quantity that plays the role of chemical potential of Active Brownian Particles (ABPs) in a steady state in the absence of vortices. We…

cond-mat.soft2016★ 16 cited

Interplay between adsorption and hydrodynamics in nanochannels: towards tunable membranes

Sela Samin, René van Roij

We study how adsorption of a near-critical binary mixture in a nanopore is modified by flow inside the pore. We identify three types of steady states upon variation of the pore Péc…

cond-mat.soft2016★ 35 cited

Vapour-Liquid Coexistence of an Active Lennard-Jones fluid

Vasileios Prymidis, Siddharth Paliwal, Marjolein Dijkstra +1

We study a three-dimensional system of self-propelled Lennard-Jones particles using Brownian Dynamics simulations. Using recent theoretical results for active matter, we calculate…

cond-mat.soft2016★ 7 cited

Alternating strings and clusters in suspensions of charged colloids

Jeffrey C. Everts, Marjolein N. van der Linden, Alfons van Blaaderen +1

We report the formation of alternating strings and clusters in a binary suspension of repulsive charged colloids with double layers larger than the particle size. Within a binary c…

cond-mat.soft2016★ 10 cited

Stochastic Lag Time in Nucleated Linear Self-Assembly

Nitin S. Tiwari, Paul van der Schoot

Protein aggregation is of great importance in biology, e.g., in amyloid fibrillation. The aggregation processes that occur at the cellular scale must be highly stochastic in nature…

cond-mat.soft2016★ 10 cited

Reversible Pore Gating in Aqueous Mixtures via External Potential

Sela Samin, Yoav Tsori

We examine theoretically porous membranes in aqueous mixtures. We show that large membrane pores can be reversibly gated from `off' (co-solvent-rich, poor conductor of ions and oth…

cond-mat.soft2016★ 1 cited

Dynamic Landau Theory for Supramolecular Self-Assembly

Nitin S. Tiwari, Koen Merkus, Paul van der Schoot

Although pathway-specific kinetic theories are fundamentally important to describe and under- stand reversible polymerisation kinetics, they come in principle at a cost of having a…

cond-mat.soft2016★ 5 cited

Reply to Comment on "Anomalous Discontinuity at the Percolation Critical Point of Active Gels"

M. Sheinman, A. Sharma, F. C. MacKintosh

In this reply we discuss definition and estimation of the Fisher exponent in the no-enclaves percolation (NEP) model.

cond-mat.soft2016★ 6 cited

Stabilizing the Hexagonal Close Packed Structure of Hard Spheres with Polymers : Phase diagram, Structure, and Dynamics

John R Edison, Tonnishtha Dasgupta, Marjolein Dijkstra

We study the phase behaviour of a binary mixture of colloidal hard spheres and freely-jointed chains of beads using Monte Carlo simulations. Recently Panagiotopoulos and coworkers…

cond-mat.soft2016★ 20 cited

Dense ionic fluids confined in planar capacitors: in- and out-of-plane structure from classical density functional theory

Andreas Härtel, Sela Samin, Rene van Roij

The ongoing scientific interest in the properties and structure of electric double layers (EDLs) stems from their pivotal role in (super)capacitive energy storage, energy harvestin…

cond-mat.soft2016

Removing grain boundaries from three-dimensional colloidal crystals using active dopants

Berend van der Meer, Marjolein Dijkstra, Laura Filion

Using computer simulations we explore how grain boundaries can be removed from three-dimensional colloidal crystals by doping with a small fraction of active colloids. We show that…

cond-mat.soft2016★ 6 cited

Dynamics of a double-stranded DNA segment in a shear flow

Debabrata Panja, Gerard T. Barkema, J. M. J. van Leeuwen

We study the dynamics of a double-stranded DNA (dsDNA) segment, as a semiflexible polymer, in a shear flow, the strength of which is customarily expressed in terms of the dimension…

cond-mat.soft2016★ 19 cited

Tuning colloid-interface interactions by salt partitioning

Jeffrey Everts, Sela Samin, René van Roij

We show that the interaction of an oil-dispersed colloidal particle with an oil-water interface is highly tunable from attractive to repulsive, either by varying the sign of the co…

cond-mat.soft2016★ 13 cited

Sedimentation stacking diagrams of binary mixtures of thick and thin hard rods

Tara Drwenski, Patrick Hooijer, René van Roij

We use Onsager theory and the local density approximation to study sedimentation-diffusion equilibrium density profiles of binary mixtures of thick and thin hard rods. We construct…

cond-mat.soft2016★ 35 cited

Fabrication of colloidal Laves phases via hard tetramers and hard spheres: bulk phase diagram and sedimentation behaviour

Guido Avvisati, Tonnishtha Dasgupta, Marjolein Dijkstra

Colloidal photonic crystals display peculiar optical properties which make them particularly suitable for application in different fields. However, the low packing fraction of the…

cond-mat.soft2016★ 21 cited

A Landau-de Gennes theory for hard colloidal rods: defects and tactoids

Jeffrey Everts, Melle Punter, Sela Samin +2

We construct a phenomenological Landau-de Gennes theory for hard colloidal rods by performing an order parameter expansion of the chemical-potential dependent grand potential. By f…

cond-mat.soft2016★ 18 cited

Efficient shapes for microswimming: from three-body swimmers to helical flagella

Bram Bet, Gijs Boosten, Marjolein Dijkstra +1

We combine a general formulation of microswimmmer equations of motion with a numerical bead-shell model to calculate the hydrodynamic interactions with the fluid, from which the sw…

cond-mat.soft2016★ 35 cited

Energetically favoured defects in dense packings of particles on spherical surfaces

Stefan Paquay, Halim Kusumaatmaja, David J. Wales +2

The dense packing of interacting particles on spheres has proved to be a useful model for virus capsids and colloidosomes. Indeed, icosahedral symmetry observed in virus capsids co…