Imperial College London
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Professor Fernando Bresme

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemical Physics
 
 
 
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Contact

 

+44 (0)20 7594 5886f.bresme Website

 
 
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Assistant

 

Miss Ravinder Dhaliwal +44 (0)20 7594 5717

 
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Location

 

207CMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Olarte-Plata:2020:10.1063/5.0008237,
author = {Olarte-Plata, JD and Bresme, F},
doi = {10.1063/5.0008237},
journal = {Journal of Chemical Physics},
pages = {204902--204902},
title = {Orientation of Janus particles under thermal fields: The role of internal mass anisotropy.},
url = {http://dx.doi.org/10.1063/5.0008237},
volume = {152},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Janus particles (JPs) are a special kind of colloids that incorporate two hemispheres with distinct physical properties. These particles feature a complex phase behavior, and they can be propelled with light by heating them anisotropically when one of the hemispheres is metallic. It has been shown that JPs can be oriented by a homogeneous thermal field. We show using multiscale simulations and theory that the internal mass gradient of the JPs can enhance and even reverse the relative orientation of the particle with the thermal field. This effect is due to a coupling of the internal anisotropy of the particle with the heat flux. Our results help rationalize previous experimental observations and open a route to control the behavior of JPs by exploiting the synergy of particle-fluid interactions and particle internal mass composition.
AU  - Olarte-Plata,JD
AU  - Bresme,F
DO  - 10.1063/5.0008237
EP  - 204902
PY  - 2020///
SN  - 0021-9606
SP  - 204902
TI  - Orientation of Janus particles under thermal fields: The role of internal mass anisotropy.
T2  - Journal of Chemical Physics
UR  - http://dx.doi.org/10.1063/5.0008237
UR  - https://www.ncbi.nlm.nih.gov/pubmed/32486665
UR  - https://aip.scitation.org/doi/10.1063/5.0008237
UR  - http://hdl.handle.net/10044/1/79936
VL  - 152
ER  -
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