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Ag2O-Containing Biocidal Interpolyelectrolyte Complexes on Glass Surfaces-Adhesive Properties of the Coatings.
Pigareva, Vladislava A; Paltsev, Oleg S; Marina, Valeria I; Lukianov, Dmitrii A; Moiseenko, Andrei V; Shchelkunov, Nikita M; Fedyanin, Andrey A; Sybachin, Andrey V.
Afiliación
  • Pigareva VA; Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia.
  • Paltsev OS; A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia.
  • Marina VI; Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia.
  • Lukianov DA; Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia.
  • Moiseenko AV; Skolkovo Institute of Science and Technology, Center for Molecular and Cellular Biology, Bolshoy Boulevard, 30, 121205 Moscow, Russia.
  • Shchelkunov NM; Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia.
  • Fedyanin AA; Skolkovo Institute of Science and Technology, Center for Molecular and Cellular Biology, Bolshoy Boulevard, 30, 121205 Moscow, Russia.
  • Sybachin AV; Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1-5, 119991 Moscow, Russia.
Polymers (Basel) ; 15(24)2023 Dec 13.
Article en En | MEDLINE | ID: mdl-38139942
ABSTRACT
Biocidal coatings are of great interest to the healthcare system. In this work, the biocidal activity of coatings based on a complex biocide containing polymer and inorganic active antibacterial components was studied. Silver oxide was distributed in a matrix of a positively charged interpolyelectrolyte complex (IPEC) of polydiallyldimethylammonium chloride (PDADMAC) and sodium polystyrene sulfonate (PSS) using ultrasonic dispersion, forming nanoparticles with an average size of 5-6 nm. The formed nanoparticles in the matrix are not subject to agglomeration and changes in morphology during storage. It was found that the inclusion of silver oxide in a positively charged IPEC allows a more than 4-fold increase in the effectiveness of the complex biocide against E. coli K12 in comparison with the biocidal effect of PDADMAC and IPEC. Polycation, IPEC, and the IPEC/Ag2O ternary complex form coatings on the glass surface due to electrostatic adsorption. Adhesive and cohesive forces in the resulting coatings were studied with micron-scale coatings using dynamometry. It was found that the stability of the coating is determined primarily by adhesive interactions. At the macro level, it is not possible to reliably identify the role of IPEC formation in adhesion. On the other hand, use of the optical tweezers method makes it possible to analyze macromolecules at the submicron scale and to evaluate the multiple increase in adhesive forces when forming a coating from IPEC compared to coatings from PDADMAC. Thus, the application of ternary IPEC/Ag2O complexes makes it possible to obtain coatings with increased antibacterial action and improved adhesive characteristics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Suiza