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Understanding the Collective Behaviour of Catalytically-Driven, Self-Propelled Colloids: From Fine-Grained Hydrodynamic Simulations to Effective Field-Theoretical Descriptions

Total Cost €


EC-Contrib. €






Project "HydroCat" data sheet

The following table provides information about the project.


Organization address
postcode: EH8 9YL

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 183˙454 €
 EC max contribution 183˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-11-16   to  2017-11-15


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF EDINBURGH UK (EDINBURGH) coordinator 183˙454.00


 Project objective

HydroCat proposes a simulation and theory study into the collective behaviour of catalytically-driven, self-propelled colloids. The first step of the investigation focusses on understanding the mechanism by which platinum-coated Janus particles self-propel on a single-particle level. This will be accomplished by modelling the two candidates for the mechanism, self-diffusiophoresis and self-electrophoresis, and directly comparing the behaviour of the hybrid-model to experimental results. Once sufficient insight has been achieved, the focus of the project will shift to the description of the collective behaviour of these particles. Here, HydroCat follows a three-pronged strategy: (i) development of a finely-resolved lattice-Boltzmann (LB) simulation that takes into account all relevant physical effects and is capable of simulating a large number of particles; (ii) coarse-grained molecular dynamics simulations to study the collective behaviour of these Janus colloids, which are benchmarked against the fine LB simulations; and (iii) a fully coarse-grained, field-theoretical description that uses input from both (i) and (ii). HydroCat will result in an improved understanding of the catalytic self-propulsion, which will serve as a solid foundation for the description of experiments and the development of applications.


year authors and title journal last update
List of publications.
2017 Joost de Graaf, Joakim Stenhammar
Lattice-Boltzmann simulations of microswimmer-tracer interactions
published pages: 23302, ISSN: 2470-0045, DOI: 10.1103/PhysRevE.95.023302
Physical Review E 95/2 2019-06-13
2016 Joost de Graaf, Arnold J. T. M. Mathijssen, Marc Fabritius, Henri Menke, Christian Holm, Tyler N. Shendruk
Understanding the onset of oscillatory swimming in microchannels
published pages: 4704-4708, ISSN: 1744-683X, DOI: 10.1039/C6SM00939E
Soft Matter 12/21 2019-06-13
2017 Ran Niu, Patrick Kreissl, Aidan T. Brown, Georg Rempfer, Denis Botin, Christian Holm, Thomas Palberg, Joost de Graaf
Microfluidic pumping by micromolar salt concentrations
published pages: 1505-1518, ISSN: 1744-683X, DOI: 10.1039/C6SM02240E
Soft Matter 13/7 2019-06-13
2016 Sven Erik Ilse, Christian Holm, Joost de Graaf
Surface roughness stabilizes the clustering of self-propelled triangles
published pages: 134904, ISSN: 0021-9606, DOI: 10.1063/1.4963804
The Journal of Chemical Physics 145/13 2019-06-13
2016 Aidan Thomas Brown, Wilson Poon, Christian Holm, Joost de Graaf
Ionic Screening and Dissociation are Crucial for Understanding Chemical Self-Propulsion in Polar Solvents
published pages: , ISSN: 1744-683X, DOI: 10.1039/C6SM01867J
Soft Matter 2019-06-13
2016 Georg Rempfer, Sascha Ehrhardt, Christian Holm, Joost de Graaf
Nanoparticle Translocation through Conical Nanopores: A Finite Element Study of Electrokinetic Transport
published pages: , ISSN: 1022-1344, DOI: 10.1002/mats.201600051
Macromolecular Theory and Simulations 2019-06-13
2017 Joost de Graaf, Joakim Stenhammar
Stirring by periodic arrays of microswimmers
published pages: 487-498, ISSN: 0022-1120, DOI: 10.1017/jfm.2016.797
Journal of Fluid Mechanics 811 2019-06-13
2016 Patrick Kreissl, Christian Holm, Joost de Graaf
The efficiency of self-phoretic propulsion mechanisms with surface reaction heterogeneity
published pages: 204902, ISSN: 0021-9606, DOI: 10.1063/1.4951699
The Journal of Chemical Physics 144/20 2019-06-13
2016 Michael Kuron, Georg Rempfer, Florian Schornbaum, Martin Bauer, Christian Godenschwager, Christian Holm, Joost de Graaf
Moving charged particles in lattice Boltzmann-based electrokinetics
published pages: 214102, ISSN: 0021-9606, DOI: 10.1063/1.4968596
The Journal of Chemical Physics 145/21 2019-06-13

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