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

Mykola Borzenkov; Maria Moros; Claudia Tortiglione; Serena Bertoldi; Nicola Contessi; Silvia Faré; Angelo Taglietti; Agnese D’Agostino; Piersandro Pallavicini; Maddalena Collini; Giuseppe Chirico

doi:10.3762/bjnano.9.193

Beilstein Journal of Nanotechnology (Jul 2018)

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

Mykola Borzenkov,
Maria Moros,
Claudia Tortiglione,
Serena Bertoldi,
Nicola Contessi,
Silvia Faré,
Angelo Taglietti,
Agnese D’Agostino,
Piersandro Pallavicini,
Maddalena Collini,
Giuseppe Chirico

Affiliations

Mykola Borzenkov: Department of Medicine and Surgery, Nanomedicine Center, University of Milano-Bicocca, Piazza dell’Ateneo Nuovo, 20126, Milan, Italy
Maria Moros: Institute of Applied Sciences and Intelligent Systems, National Research Council of Italy, Via Campi-Flegrei 34, 80078, Pozzuoli, Italy
Claudia Tortiglione: Institute of Applied Sciences and Intelligent Systems, National Research Council of Italy, Via Campi-Flegrei 34, 80078, Pozzuoli, Italy
Serena Bertoldi: Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Piazza Leonardo da Vinci 32, 20133, Milan, Italy
Nicola Contessi: Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Piazza Leonardo da Vinci 32, 20133, Milan, Italy
Silvia Faré: Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Piazza Leonardo da Vinci 32, 20133, Milan, Italy
Angelo Taglietti: Department of Chemistry and Centre for Health Technology, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy,
Agnese D’Agostino: Department of Chemistry and Centre for Health Technology, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy,
Piersandro Pallavicini: Department of Chemistry and Centre for Health Technology, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy,
Maddalena Collini: Department of Medicine and Surgery, Nanomedicine Center, University of Milano-Bicocca, Piazza dell’Ateneo Nuovo, 20126, Milan, Italy
Giuseppe Chirico: Department of Medicine and Surgery, Nanomedicine Center, University of Milano-Bicocca, Piazza dell’Ateneo Nuovo, 20126, Milan, Italy

DOI: https://doi.org/10.3762/bjnano.9.193
Journal volume & issue: Vol. 9, no. 1
pp. 2040 – 2048

Abstract

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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.

Published in Beilstein Journal of Nanotechnology

ISSN: 2190-4286 (Online)
Publisher: Beilstein-Institut
Country of publisher: Germany
LCC subjects: Technology: Chemical technology; Science: Physics
Website: http://www.beilstein-journals.org/bjnano/home/home.htm

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