Plasma deposition of silver nanoparticles onto poly(ethylene terephthalate) surfaces for the preparation of antimicrobial materials / Hanène Salmi-Mani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 4 (07/2023) . - p. 1395-1405 Titre : Plasma deposition of silver nanoparticles onto poly(ethylene terephthalate) surfaces for the preparation of antimicrobial materials Type de document : texte imprimé Auteurs : Hanène Salmi-Mani, Auteur ; Grégory Balthazar, Auteur ; J. Atkins, Auteur ; Caroline Aymes-Chodur, Auteur ; Patrick Ribot, Auteur ; Gabriel Terreros, Auteur ; Nadine Barroca-Aubry, Auteur ; Christophe Regeard, Auteur ; Philippe Roger, Auteur Année de publication : 2023 Article en page(s) : p. 1395-1405 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Antibactériens Argent Caractérisation Essais d'adhésion Evaluation Micro-ondes Nanoparticules Polyéthylène téréphtalate Projection au plasma Rayonnement ultraviolet Revêtements Thiols Index. décimale : 667.9 Revêtements et enduits Résumé : Poly(ethylene terephthalate) (PET) films were surface-modified according to microwave plasma activation allowing for dithiol functions grafting (1,6-hexanedithiol) in order to fabricate self-assembled photogenerated silver nanoparticles monolayers. The present study was carried out in constant discharge power conditions and the impact of the plasma treatment on PET wettability properties were reported. PET material modifications were characterized at various stages of the process : plasma activation, dithiol functionalization, and nanosilver grafting according to several experimental techniques : water contact angle measurements and X-ray photoelectron spectroscopy (XPS). The surface topography was studied by atomic force microscopy (AFM). Finally, antibacterial properties of PET material including silver nanoparticles were evaluated to determine the probability to reduce the surface bacterial adhesion of Staphylococcus aureus strain selected as pathogenic bacteria model. Surface grafted with silver nanoparticles was found to be particularly reactive and led to an inhibition of S. aureus adhesion around 96.2% in comparison with the unmodified PET material. Note de contenu : - EXPERIMENTAL PART - General materials - PET-plasma modification and thiol functionalization - In situ photogeneration of silver nanoparticles - Antibacterial activity assessment - Bacterial adhesion tests - Equipment and characterization - Plasma reactor - UV irradiation - Contact angle measurements - Atomic force microscopy (AFM) measurements - X-ray photoelectron spectroscopy (XPS) measurements - RESULTS AND DISCUSSION : - Preliminary study : effect of plasma treatment - Table 1 : Elemental composition (%) of untreated PET, PET-plasma, PET-plasma-SH, and PET-plasma-SH-Ag substratesTable 2 Water contact angles after each step of the treatment : (a) Untreated PET, (b) PET-plasma, (c) PET-plasma-SH, and (d) PET-plasma-SH-Ag DOI : https://doi.org/10.1007/s11998-022-00752-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00752-5.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39724 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24153	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)