Silver-Containing Thin Films on Transparent Polymer Foils for Antimicrobial Applications; Coatings; Vol. 12, iss. 2

Silver-Containing Thin Films on Transparent Polymer Foils for Antimicrobial Applications; Coatings; Vol. 12, iss. 2

Detalhes bibliográficos
Parent link:Coatings
Vol. 12, iss. 2.— 2022.— [170, 13 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Научно-исследовательский центр "Физическое материаловедение и композитные материалы"
Outros Autores: Vitelaru C. Catalin, Parau A. C. Anca Constantina, Kiss A. E. Adrian, Pana I. Iulian, Dinu M. Mihaela, Constantin L. R. Lidia, Vladesku A. Alina, Tonofrei L. E. Lavinia, Adochite C. S. Cristina, Costinas S. Sarah, Rogozea L. Liliana, Badea M. Mihaela, Idomir M. E. Mihaela
Resumo:Title screen
The increasing occurrence of infections caused by pathogens found on objects of everyday use requires a variety of solutions for active disinfection. Using active materials that do not require daily maintenance has a potential advantage for their acceptance. In this contribution, transparent films, with silver as the main antimicrobial agent and a total thickness of a few tens of nm, were deposited on flexible self-adhesive polymer foils used as screen protectors. TiO2 and SiO2 were used as transparent matrix to embed the Ag nanoparticles, ensuring also their mechanical protection and controlled growth. HiPIMS (High-Power Impulse Magnetron Sputtering) was used for the sputtering of the Ag target and fine control of the Ag amount in the layer, whereas TiO2 and SiO2 were sputtered in RF (Radio Frequency) mode. The thin film surface was investigated by AFM (Atomic Force Microscopy), providing information on the topography of the coatings and their preferential growth on the textured polymer foil. XRD (X-Ray Diffraction) revealed the presence of specific Ag peaks in an amorphous oxide matrix. UV-Vis-NIR (Ultraviolet-Visible-Near Infrared) spectroscopy revealed the presence of nanostructured Ag, characterized by preferential absorption in the 400 to 500 nm spectral range. The antimicrobial properties were assessed using an antimicrobial test with the Escherichia coli strain. The highest efficiency was observed for the Ag/SiO2 combination, in the concentration range of 104-105 CFU/mL.
Idioma:inglês
Publicado em: 2022
Assuntos:
электронный ресурс
труды учёных ТПУ
antimicrobial
silver
magnetron sputtering
polymer foils
противомикробные свойства
серебро
магнетронное напыление
полимерные пленки
Acesso em linha:https://doi.org/10.3390/coatings12020170
Formato: Recurso Eletrônico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668993

Registros relacionados

Registros relacionados