Abstract
ABSTRACTThe capability of poly(vinyl alcohol) (PVA) to reduce noble metal ions and, in turn, to prepare one‐step hybrid systems that exhibit near‐infrared radiation (NIR) light‐responsiveness has been barely explored. The aim of this work was to elucidate whether gold nanoparticles (Au NPs) could be spontaneously formed in PVA gels suitable to be used as syringeable depots or to prepare electrospun nanofibers. To check the hypothesis of that the gold counterion may play a role in the Au NPs formation process, two different gold salts (HAuCl4 and AuAc3) were used. Localized surface plasmon resonance bands were monitored during the incubation of PVA‐gold salt gels, and the photoresponsive capability of the newly formed Au NPs inside gels was investigated during laser irradiation at 808 nm. HET‐CAM assay suggested good biocompatibility. Then, the feasibility of producing electrospun hybrid PVA‐based mats that exhibit light‐responsive photothermal features was explored here for the first time. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48811.
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