Deposition of Silver Nanostructures on Polymer Films by Glow Discharge

The development of novel biocompatible and biodegradable materials for medical applications has been drawing significant interest in the scientific community for years. Particularly, chitosan loaded with silver nanoparticles (Ag NPs) has a strong antimicrobial potential and could be applied, for example, as wound dressing material. In this work, chitosan/Ag NP composites were produced utilizing a single-step plasma-solution process, which is simple and environmentally friendly. An acetic solution of chitosan containing AgNO3 was treated by the direct current (DC) atmospheric pressure glow discharge, with the liquid serving as either cathode or anode. The plasma-solution system with liquid anode is more useful for the production of Ag NPs. Nevertheless, the NP size is comparable for both cases. The plasma treatment with both polarities led to chitosan degradation. The cleavage of glucosidic chains mostly occurred in the system with the liquid cathode, whereas the side oxidation reactions took place when the solution served as the anode. The oxidation processes were possibly induced by the hydrogen peroxide H2O2 efficiently formed in the last case. The composite materials produced with both polarities of liquid electrode demonstrated the bactericidal action against Gram-negative Escherichia coli, Gram-positive Staphylococcus aureus, and Gram-positive Bacillus subtilis.

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“…• [59]. The resulting atoms participate in the nucleation and growth under the van der Waals force action leading to the NP formation.…”

Section: Discussionmentioning

confidence: 99%

Dual-Mode Solution Plasma Processing for the Production of Chitosan/Ag Composites with the Antibacterial Effect

et al. 2020

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Plasma‐assisted synthesis and deposition of molybdenum oxide nanoparticles on polyethylene terephthalate for photocatalytic degradation of rhodamine B

Sirotkin

Khlyustova

Титов

et al. 2020

Plasma Processes & Polymers

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In this study, an atmospheric pressure glow discharge initiated between the metal molybdenum anode and the liquid cathode is applied to produce molybdenum oxide nanoparticles, which are deposited on a polyethylene terephthalate substrate. The presence of nanoparticles in the liquid solution is confirmed by ultraviolet‐vis absorbance spectroscopy and the dynamic light scattering method. The obtained composites are characterized by methods of scanning electron microscopy, infrared spectroscopy, and X‐ray photoelectron spectroscopy. The efficiency of the obtained composite as a photocatalyst is investigated. The composite demonstrates a high photocatalytic performance, ~100% dye removal in 30 min during five cycles of use.

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Synthesis of Ag nanoparticles by cathode glow discharge electrolysis using sacrificial Ag foil of anode

Lu,

Ma,

et al. 2023

Colloid Polym Sci

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Deposition of Silver Nanostructures on Polymer Films by Glow Discharge

Cited by 5 publications

References 41 publications

Dual-Mode Solution Plasma Processing for the Production of Chitosan/Ag Composites with the Antibacterial Effect

Dual-Mode Solution Plasma Processing for the Production of Chitosan/Ag Composites with the Antibacterial Effect

Plasma‐assisted synthesis and deposition of molybdenum oxide nanoparticles on polyethylene terephthalate for photocatalytic degradation of rhodamine B

Synthesis of Ag nanoparticles by cathode glow discharge electrolysis using sacrificial Ag foil of anode

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