This title appears in the Scientific Report :
2021
Please use the identifier:
http://hdl.handle.net/2128/28125 in citations.
Please use the identifier: http://dx.doi.org/10.1140/epje/s10189-021-00043-8 in citations.
Collective behavior of thermophoretic dimeric active colloids in three-dimensional bulk
Collective behavior of thermophoretic dimeric active colloids in three-dimensional bulk
Colloids driven by phoresis constitute one of the main avenues for the design of synthetic microswimmers. For these swimmers, the specific form of the phoretic and hydrodynamic interactions dramatically influences their dynamics. Explicit solvent simulations allow the investigation of the different...
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Personal Name(s): | Wagner, Martin |
---|---|
Roca, Sergi / Ripoll, Marisol (Corresponding author) | |
Contributing Institute: |
Theoretische Physik der Lebenden Materie; IBI-5 |
Published in: | The European physical journal / E, 44 (2021) 3, S. 43 |
Imprint: |
Heidelberg
Springer
2021
|
DOI: |
10.1140/epje/s10189-021-00043-8 |
Document Type: |
Journal Article |
Research Program: |
Information Processing in Distributed Systems |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1140/epje/s10189-021-00043-8 in citations.
Colloids driven by phoresis constitute one of the main avenues for the design of synthetic microswimmers. For these swimmers, the specific form of the phoretic and hydrodynamic interactions dramatically influences their dynamics. Explicit solvent simulations allow the investigation of the different behaviors of dimeric Janus active colloids. The phoretic character is modified from thermophilic to thermophobic, and this, together with the relative size of the beads, strongly influences the resulting solvent velocity fields. Hydrodynamic flows can change from puller-type to pusher-type, although the actual flows significantly differ from these standard flows. Such hydrodynamic interactions combined with phoretic interactions between dimers result in several interesting phenomena in three-dimensional bulk conditions. Thermophilic dimeric swimmers are attracted to each other and form large and stable aggregates. Repulsive phoretic interactions among thermophobic dimeric swimmers hinder such clustering and lead, together with long- and short-ranged attractive hydrodynamic interactions, to short-lived, aligned swarming structures. |