Understanding the Collective Behaviour of Catalytically Driven Self Propelled C...
Understanding the Collective Behaviour of Catalytically Driven Self Propelled Colloids From Fine Grained Hydrodynamic Simulations to Effective Field Theoretical Descriptions
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 J...
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Descripción del proyecto
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.