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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.

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

Taglietti, Angelo;D'Agostino, Agnese;Pallavicini, Piersandro;
2018-01-01

Abstract

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.
2018
Chemistry & Analysis covers research on natural and laboratory syntheses, chemical structure, structure-function relationship, isolation and analyses of biologically significant molecules, medicinal and food chemistry. Technical material describing crucial chemical methods in biochemical analysis and research is also placed in this category. Resources covering general biochemistry and natural metabolic pathways are excluded.
Materials Science and Engineering is concerned with admixtures of matter or the basic matter from which products are made. The category covers ceramics, paper and wood products, polymers, textiles, composites, coatings & films, and biomaterials. Other areas covered in this category include Materials Chemistry, the application of chemistry to materials design and testing; Condensed Matter/Solid State Physics, the branch of physics concerned with the structure and properties of condensed matter (superconductors, semiconductors, ferroelectrics, and dielectrics); and Physical Chemistry/Chemical Physics, the application of the concepts and laws of physics to chemical phenomena.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
sì
WOS:000439667400001
2-s2.0-85052935449
Esperti anonimi
Inglese
Internazionale
STAMPA
9
2040
2048
9
30116694
antibacterial properties, gold nanostars, photothermal effect, poly(vinyl alcohol) films, nanoparticles
https://www.beilstein-journals.org/bjnano/articles/9/193
no
11
info:eu-repo/semantics/article
262
Borzenkov, Mykola; Moros, Maria; Tortiglione, Claudia; Bertoldi, Serena; Contessi, Nicola; Faré, Silvia; Taglietti, Angelo; D'Agostino, Agnese; Pallav...espandi
1 Contributo su Rivista::1.1 Articolo in rivista
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1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/1223859
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