This title appears in the Scientific Report :
2014
Please use the identifier:
http://hdl.handle.net/2128/22854 in citations.
Please use the identifier: http://dx.doi.org/10.1039/C4SM00621F in citations.
Hydrodynamic simulations of self-phoretic microswimmers
Hydrodynamic simulations of self-phoretic microswimmers
A mesoscopic hydrodynamic model to simulate synthetic self-propelled Janus particles which is thermophoretically or diffusiophoretically driven is here developed. We first propose a model for a passive colloidal sphere which reproduces the correct rotational dynamics together with strong phoretic ef...
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Personal Name(s): | Yang, Mingcheng (Corresponding Author) |
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Wysocki, Adam / Ripoll, Marisol | |
Contributing Institute: |
Theorie der Weichen Materie und Biophysik; IAS-2 Theorie der Weichen Materie und Biophysik; ICS-2 |
Published in: | Soft matter, 10 (2014) 33, S. 6208 - |
Imprint: |
Cambridge
Royal Society of Chemistry (RSC)
2014
|
DOI: |
10.1039/C4SM00621F |
PubMed ID: |
25012361 |
Document Type: |
Journal Article |
Research Program: |
Soft Matter Composites |
Link: |
Restricted OpenAccess Restricted OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1039/C4SM00621F in citations.
A mesoscopic hydrodynamic model to simulate synthetic self-propelled Janus particles which is thermophoretically or diffusiophoretically driven is here developed. We first propose a model for a passive colloidal sphere which reproduces the correct rotational dynamics together with strong phoretic effect. This colloid solution model employs a multiparticle collision dynamics description of the solvent, and combines stick boundary conditions with colloid–solvent potential interactions. Asymmetric and specific colloidal surface is introduced to produce the properties of self-phoretic Janus particles. A comparative study of Janus and microdimer phoretic swimmers is performed in terms of their swimming velocities and induced flow behavior. Self-phoretic microdimers display long range hydrodynamic interactions with a decay of 1/r2, which is similar to the decay of gradient fields generated by self-phoretic particle, and can be characterized as pullers or pushers. In contrast, Janus particles are characterized by short range hydrodynamic interactions with a decay of 1/r3 and behave as neutral swimmers. |