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Appl. Sci. 2017, 7(9), 916; doi:10.3390/app7090916

Ion-Mediated Aggregation of Gold Nanoparticles for Light-Induced Heating

Institute of Fine Chemistry and Nanochemistry, Department of Physical Chemistry and Applied Thermodynamics, University of Córdoba, Campus Universitario de Rabanales, Edificio Marie Curie, E-14014 Córdoba, Spain
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Received: 5 August 2017 / Revised: 1 September 2017 / Accepted: 4 September 2017 / Published: 7 September 2017
(This article belongs to the Special Issue Laser Interaction with Plasmonic Nanostructures)
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Abstract

Photothermal therapy is proposed as a straightforward manner of killing cancer cells, which a plasmon field of gold nanoparticles is activated by incoming light resonance leading to a local increase of temperature. This photothermal effect is strongly dependent on the plasmonic features of the nanoparticles. Herein, we study the effect of the ion-mediated aggregation of citrate-capped small spherical gold nanoparticles on the plasmonic band and the photothermal performance. An intermediate value of ionic strength has been found to be optimum with respect to the photothermal capabilities of the gold nanoparticles. View Full-Text
Keywords: plasmonics; nanoparticles; gold; aggregation; plasmonic photothermal therapy; nanostructures; localized heating plasmonics; nanoparticles; gold; aggregation; plasmonic photothermal therapy; nanostructures; localized heating
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Alba-Molina, D.; Martín-Romero, M.T.; Camacho, L.; Giner-Casares, J.J. Ion-Mediated Aggregation of Gold Nanoparticles for Light-Induced Heating. Appl. Sci. 2017, 7, 916.

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