Characteristics, antibacterial activity, and antibiofilm performance of a polysiloxane coating filled with organically modified Cu2O / Phi Hung Dao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 6 (11/2023) . - p. 1949-1961 Titre : Characteristics, antibacterial activity, and antibiofilm performance of a polysiloxane coating filled with organically modified Cu2O Type de document : texte imprimé Auteurs : Phi Hung Dao, Auteur ; Anh Hiep Nguyen, Auteur ; Thanh Thuy Tran, Auteur ; Thuy Chinh Nguyen, Auteur ; Thi Thu Trang Nguyen, Auteur ; Xuan Thai Nguyen, Auteur ; Thi Mai Tran, Auteur ; An Quan Vo, Auteur ; Huu Nghi Do, Auteur ; Minh Quan Pham, Auteur ; Ngoc Nhiem Dao, Auteur ; Ngoc Tan Nguyen, Auteur ; Hoang Nghia Trinh, Auteur ; Hoang Thai, Auteur Année de publication : 2023 Article en page(s) : p. 1949-1961 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antibactériens Biofilms Eau de mer Inhibition microbienne Nanoparticules Oxyde de cuivre Revêtements -- Propriétés mécaniques Revêtements -- Propriétés physiques Revêtements antisalissures:Peinture antisalissures Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Test d'immersion Index. décimale : 667.9 Revêtements et enduits Résumé : The effects of Cu2O nanoparticles (Cu2O NPs) modified with 3-(trimethoxysilyl)propyl methacrylate (TMSPM) (m-Cu2O NPs) on the properties of a polysiloxane (PS) coating were investigated. The organic surface modifications improved the antimicrobial activity of the Cu2O NPs and their dispersion in a PS matrix. Due to the broad dispersion of the m-Cu2O NPs, the PS/m-Cu2O coating exhibited better mechanical properties and better thermal stability than unmodified Cu2O (u-Cu2O) coatings. The onset temperature of PS/m-Cu2O was 24 °C higher than that of the neat PS coating and 11 °C higher than that of the PS/u-Cu2O coating. The PS/m-Cu2O coating exhibited high antibacterial activity for sulfate-reducing bacterial strains, but the PS/m-Cu2O coating showed slight bacterial inhibition of Pseudomonas stutzeri B27 bacteria (which were isolated under seawater at Phu Quoc Island, Kien Giang Province, Vietnam). Biofilm inhibition by the PS coatings with and without the m-Cu2O NPs was also tested with a natural seawater immersion test. After a 60-day test, the biofilm formed on the PS coating surface was ten times thicker than that on the PS/m-Cu2O coating. Fourier transform infrared spectroscopy (FTIR) data and the surface properties of the coating indicated that immersion in natural seawater insignificantly affected the functional groups of the coating but had a substantial influence on the smoothness of the coating, which made the surface of the coating more hydrophilic. These results suggested that the PS/m-Cu2O could be used as an antifouling coating for the marine industry. Note de contenu : - EXPERIMENTAL : Materials - Surface modification of Cu2O nanoparticles - Preparation of polysiloxane coatings containing m-Cu2O NPs - Preparation of antifouling paint coatings for biofilm resistance by immersion in natural seawater - Immersion of the investigated coatings in natural seawater - Analyses - RESULTS AND DISCUSSION : Effect of organically modified Cu2O NPs on the mechanical properties of the polysiloxane coatings - Thermal behaviors of polysiloxane coatings containing Cu2O NPs - Morphologies of the polysiloxane coatings containing m-Cu2O NPs - Antibacterial activities of polysiloxane coatings containing m-Cu2O NPs - Investigation of biofilm inhibition by the polysiloxane coatings containing m-Cu2O NPs with immersion in natural seawater in the laboratory - Table 1 : Characteristics and qualities of the seawater at the testing site - Table 2 : Physicomechanical properties of the PS/Cu2O NP coatings - Table 3 : Antimicrobial activities of u-Cu2O NPs and m-Cu2O NPs - Table 4 : Antibacterial activities of the PS coatings for Pseudomonas stutzeri B27 bacteria - Table 5 : Antibacterial activities of the PS coatings for sulfate-reducing bacteria DOI : https://doi.org/10.1007/s11998-023-00789-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00789-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40173 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24337	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)