Seed mediated growth of silver nanoplates on glass: exploiting the bimodal antibacterial effect by near IR photo-thermal action and Ag release

We developed a reproducible synthetic method to grow anisotropic silver nanoplates on glass, giving them the desired plasmonic features and tuning their size and LSPR absorption with growth time. Samples were fully characterized showing good stability, a strong photo-thermal effect and the ability t...

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Published in:RSC advances 2016-01, Vol.6 (74), p.7414-7423
Main Authors: D'Agostino, A, Taglietti, A, Grisoli, P, Dacarro, G, Cucca, L, Patrini, M, Pallavicini, P
Format: Article
Language:English
Subjects:
Absorption
Antiinfectives and antibacterials
Glass
Lasers
Nanostructure
Plasmonics
Stability
Tuning
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cited_by cdi_FETCH-LOGICAL-c396t-b01e3b4094b29c4dfd5465b423c52518153a7fa4ecb40567c2a692c6d53493d93
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container_end_page 7423
container_issue 74
container_start_page 7414
container_title RSC advances
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creator D'Agostino, A
Taglietti, A
Grisoli, P
Dacarro, G
Cucca, L
Patrini, M
Pallavicini, P
description We developed a reproducible synthetic method to grow anisotropic silver nanoplates on glass, giving them the desired plasmonic features and tuning their size and LSPR absorption with growth time. Samples were fully characterized showing good stability, a strong photo-thermal effect and the ability to release controlled quantities of silver in water. These samples showed a strong antibacterial activity, which is based on two different mechanisms: silver ion release and hyperthermia caused by the photo-thermal effect under near-infrared laser irradiation. This behaviour allows us to foresee promising in vivo applications, ensuring a long-term antibacterial protection which can be reinforced, when needed, by a fast photo-thermal action which can be switched on by a NIR laser treatment. Silver nanoplates synthesized with the desired features directly on glass show a bimodal antibacterial action: Ag + release and NIR laser switchable hyperthermia.
doi_str_mv 10.1039/c6ra11608f
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source Royal Society of Chemistry
subjects Absorption
Antiinfectives and antibacterials
Glass
Lasers
Nanostructure
Plasmonics
Stability
Tuning
title Seed mediated growth of silver nanoplates on glass: exploiting the bimodal antibacterial effect by near IR photo-thermal action and Ag release
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