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{Galteland:2020:10.1021/acs.langmuir.0c02243,
author = {Galteland, O and Bresme, F and Hafskjold, B},
doi = {10.1021/acs.langmuir.0c02243},
journal = {Langmuir: the ACS journal of surfaces and colloids},
pages = {14530--14538},
title = {Solvent-mediated forces between ellipsoidal nanoparticles adsorbed at liquid-vapor interfaces.},
url = {http://dx.doi.org/10.1021/acs.langmuir.0c02243},
volume = {36},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Classical capillary theory predicts that a non-neutrally wetting ellipsoidal particle adsorbed at a liquid-vapor interface will deform the interface. The deformation gives rise to anisotropic capillary forces of a quadrupolar nature that induce strong directionality in the particle interactions. Here, we investigate the interactions between nanoparticles with characteristic lengths of 1-5 nm. We show that the near-field interactions are dominated by solvent-mediated forces, which arise from the fluid packing between the nanoparticles and direct nanoparticle-nanoparticle interactions. The solvent-mediated forces are two orders of magnitude larger than the estimated capillary force. We find that interacting ellipsoidal nanoparticles adsorbed at the liquid-vapor interface have a larger repulsion in the depletion region than the nanoparticles submerged in a dense bulk phase and argue that this is because of a negative line tension associated with the three-phase line.
AU  - Galteland,O
AU  - Bresme,F
AU  - Hafskjold,B
DO  - 10.1021/acs.langmuir.0c02243
EP  - 14538
PY  - 2020///
SN  - 0743-7463
SP  - 14530
TI  - Solvent-mediated forces between ellipsoidal nanoparticles adsorbed at liquid-vapor interfaces.
T2  - Langmuir: the ACS journal of surfaces and colloids
UR  - http://dx.doi.org/10.1021/acs.langmuir.0c02243
UR  - https://www.ncbi.nlm.nih.gov/pubmed/33236631
UR  - https://pubs.acs.org/doi/10.1021/acs.langmuir.0c02243
UR  - http://hdl.handle.net/10044/1/84718
VL  - 36
ER  -
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