Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release

Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release

Abstract Photo-responsive antibacterial surfaces combining both on-demand photo-switchable activity and sustained biocidal release were prepared using sequential chemical grafting of nano-objects with different geometries and functions. The multi-layered coating developed incorporates a monolayer of...

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Autores principales: Piersandro Pallavicini, Barbara Bassi, Giuseppe Chirico, Maddalena Collini, Giacomo Dacarro, Emiliano Fratini, Pietro Grisoli, Maddalena Patrini, Laura Sironi, Angelo Taglietti, Marcel Moritz, Ioritz Sorzabal-Bellido, Arturo Susarrey-Arce, Edward Latter, Alison J. Beckett, Ian A. Prior, Rasmita Raval, Yuri A. Diaz Fernandez
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Science
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Acceso en línea:https://doaj.org/article/45d4719b81a24f5b8da726eca04ccd5a
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spelling oai:doaj.org-article:45d4719b81a24f5b8da726eca04ccd5a2021-12-02T12:32:37ZModular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release10.1038/s41598-017-05693-32045-2322https://doaj.org/article/45d4719b81a24f5b8da726eca04ccd5a2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05693-3https://doaj.org/toc/2045-2322Abstract Photo-responsive antibacterial surfaces combining both on-demand photo-switchable activity and sustained biocidal release were prepared using sequential chemical grafting of nano-objects with different geometries and functions. The multi-layered coating developed incorporates a monolayer of near-infrared active silica-coated gold nanostars (GNS) decorated by silver nanoparticles (AgNP). This modular approach also enables us to unravel static and photo-activated contributions to the overall antibacterial performance of the surfaces, demonstrating a remarkable synergy between these two mechanisms. Complementary microbiological and imaging evaluations on both planktonic and surface-attached bacteria provided new insights on these distinct but cooperative effects.Piersandro PallaviciniBarbara BassiGiuseppe ChiricoMaddalena ColliniGiacomo DacarroEmiliano FratiniPietro GrisoliMaddalena PatriniLaura SironiAngelo TagliettiMarcel MoritzIoritz Sorzabal-BellidoArturo Susarrey-ArceEdward LatterAlison J. BeckettIan A. PriorRasmita RavalYuri A. Diaz FernandezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Piersandro Pallavicini
Barbara Bassi
Giuseppe Chirico
Maddalena Collini
Giacomo Dacarro
Emiliano Fratini
Pietro Grisoli
Maddalena Patrini
Laura Sironi
Angelo Taglietti
Marcel Moritz
Ioritz Sorzabal-Bellido
Arturo Susarrey-Arce
Edward Latter
Alison J. Beckett
Ian A. Prior
Rasmita Raval
Yuri A. Diaz Fernandez
Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
description Abstract Photo-responsive antibacterial surfaces combining both on-demand photo-switchable activity and sustained biocidal release were prepared using sequential chemical grafting of nano-objects with different geometries and functions. The multi-layered coating developed incorporates a monolayer of near-infrared active silica-coated gold nanostars (GNS) decorated by silver nanoparticles (AgNP). This modular approach also enables us to unravel static and photo-activated contributions to the overall antibacterial performance of the surfaces, demonstrating a remarkable synergy between these two mechanisms. Complementary microbiological and imaging evaluations on both planktonic and surface-attached bacteria provided new insights on these distinct but cooperative effects.
format article
author Piersandro Pallavicini
Barbara Bassi
Giuseppe Chirico
Maddalena Collini
Giacomo Dacarro
Emiliano Fratini
Pietro Grisoli
Maddalena Patrini
Laura Sironi
Angelo Taglietti
Marcel Moritz
Ioritz Sorzabal-Bellido
Arturo Susarrey-Arce
Edward Latter
Alison J. Beckett
Ian A. Prior
Rasmita Raval
Yuri A. Diaz Fernandez
author_facet Piersandro Pallavicini
Barbara Bassi
Giuseppe Chirico
Maddalena Collini
Giacomo Dacarro
Emiliano Fratini
Pietro Grisoli
Maddalena Patrini
Laura Sironi
Angelo Taglietti
Marcel Moritz
Ioritz Sorzabal-Bellido
Arturo Susarrey-Arce
Edward Latter
Alison J. Beckett
Ian A. Prior
Rasmita Raval
Yuri A. Diaz Fernandez
author_sort Piersandro Pallavicini
title Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
title_short Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
title_full Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
title_fullStr Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
title_full_unstemmed Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
title_sort modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/45d4719b81a24f5b8da726eca04ccd5a
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