Fabrication of photothermally active poly(vinyl alcohol) films with gold nanostars for antibacterial applications

Autor: Mykola Borzenkov, Maria Moros, Claudia Tortiglione, Serena Bertoldi, Nicola Contessi, Silvia Faré, Angelo Taglietti, Agnese D’Agostino, Piersandro Pallavicini, Maddalena Collini, Giuseppe Chirico
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 2040-2048 (2018)
Druh dokumentu: article
ISSN: 2190-4286
DOI: 10.3762/bjnano.9.193
Popis: The unique photothermal properties of non-spherical gold nanoparticles under near-infrared (NIR) irradiation find broad application in nanotechnology and nanomedicine. The combination of their plasmonic features with widely used biocompatible poly(vinyl alcohol) (PVA) films can lead to novel hybrid polymeric materials with tunable photothermal properties and a wide range of applications. In this study, thin PVA films containing highly photothermally efficient gold nanostars (GNSs) were fabricated and their properties were studied. The resulting films displayed good mechanical properties and a pronounced photothermal effect under NIR irradiation. The local photothermal effect triggered by NIR irradiation of the PVA-GNS films is highly efficient at killing bacteria, therefore providing an opportunity to develop new types of protective antibacterial films and coatings.
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