Imperial College London
Portrait Picture

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{Gonzalez-Colsa:2022:10.1364/OE.446637,
author = {Gonzalez-Colsa, J and Serrera, G and Maria, Saiz J and Ortiz, D and Gonzalez, F and Bresme, F and Moreno, F and Albella, P},
doi = {10.1364/OE.446637},
journal = {Optics Express},
pages = {125--137},
title = {Gold nanodoughnut as an outstanding nanoheater for photothermal applications},
url = {http://dx.doi.org/10.1364/OE.446637},
volume = {30},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Photoinduced hyperthermia is a cancer therapy technique that induces death to cancerous cells via heat generated by plasmonic nanoparticles. While previous studies have shown that some nanoparticles can be effective at killing cancer cells under certain conditions, there is still a necessity (or the need) to improve its heating efficiency. In this work, we perform a detailed theoretical study comparing the thermoplasmonic response of the most effective nanoparticle geometries up to now with a doughnut-shaped nanoparticle. We numerically demonstrate that the latter exhibits a superior tunable photothermal response in practical illumination conditions (unpolarized light). Furthermore, we show that nanoparticle heating in fluidic environments, i.e., nanoparticles undergoing Brownian rotations, strongly depends on the particle orientation with respect to the illumination source. We conclude that nanodoughnuts are the best nanoheaters in our set of structures, with an average temperature increment 40% higher than the second best nanoheater (nanodisk). Furthermore, nanodoughnuts feature a weak dependence on orientation, being therefore ideal candidates for photothermal therapy applications. Finally, we present a designing guide, covering a wide range of toroid designs, which can help on its experimental implementation.
AU  - Gonzalez-Colsa,J
AU  - Serrera,G
AU  - Maria,Saiz J
AU  - Ortiz,D
AU  - Gonzalez,F
AU  - Bresme,F
AU  - Moreno,F
AU  - Albella,P
DO  - 10.1364/OE.446637
EP  - 137
PY  - 2022///
SN  - 1094-4087
SP  - 125
TI  - Gold nanodoughnut as an outstanding nanoheater for photothermal applications
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/OE.446637
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000738278500011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-30-1-125&id=466202
UR  - http://hdl.handle.net/10044/1/93860
VL  - 30
ER  -
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