Enhancing antibacterial and anticorrosion properties of 304 stainless steel surfaces: a multi-modification approach based on DA/PEI/SiO2/AMPs / De Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 979-994 Titre : Enhancing antibacterial and anticorrosion properties of 304 stainless steel surfaces: a multi-modification approach based on DA/PEI/SiO2/AMPs Type de document : texte imprimé Auteurs : De Liu, Auteur ; Huming Wang, Auteur ; Xuxu Dong, Auteur ; Xiaodan Liu, Auteur ; Sergi Dosta, Auteur ; Chao Zhang, Auteur ; Pan Cao, Auteur Année de publication : 2023 Article en page(s) : p. 979-994 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique. L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1. C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple. Antibactériens Anticorrosifs Anticorrosion Dioxyde de silicium Dopamine Matériaux hybrides Métaux -- Revêtements protecteurs Peptides Polyéther imide Revêtements antisalissures Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Marine fouling can cause a series of hazards in the marine industrial field, and the traditional antifouling methods do not fulfill the green antifouling requirement. Herein, a novel DA/PEI/SiO2/antibacterial peptide antifouling coating was prepared by a multi-modification approach. Initially, the nanocoatings were prepared by depositing DA, PEI, and SiO2 on the dopamine (DA)-modified 304 stainless steel (SS) surface, and finally, the DA/PEI/SiO2/AMPs composite coatings were prepared by grafting antimicrobial peptides (AMPs). The surfaces of SS before and after modification were characterized by Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectrometer (XPS), field emission scanning electron microscopy (SEM), contact angle measurement, and 3D optical profilometer. SSN-1 cells were used to evaluate the cytocompatibility of the modified surface. The results revealed that the cells cultured on the modified surface still maintained a good adhesion morphology, demonstrating the superior cytocompatibility of the composite coating. The anti-biofilm and antimicrobial properties of the modified samples were evaluated using Vibrio natriegens. The antibacterial efficiency of SS-DA/PEI/SiO2 surfaces before and after AMPs modification reached 78.39 and 95.90%, and anti-biofilm efficiency of AMPs modified surface achieved 72.87% corresponding to 44.19% of SS-DA/PEI/SiO2. The successful grafting of AMPs improved the antibacterial and anti-biofilm properties of the modified sample surfaces. Electrochemical and stability tests indicated that the modified sample surfaces exhibited excellent corrosion resistance and antifouling stability properties. This research could provide a novel green anti-fouling and anti-corrosion strategy for the marine industry and other related fields. Note de contenu : - EXPERIMENTAL SECTION : Materials and reagents - Preparation of SS-DA/PEI/SiO2-M composite surfaces - Surface characterization - Antibiofilm evaluation - Antibacterial testing - Electrochemical performance tests - Cell adhesion assays - Robustness analysis - Statistical analysis - RESULTS AND DISCUSSION : Fabrication of nanocomposite films and MAG II grafting - Characterization of SS, SS-DA/PEI/SiO2, and SS-DA/PEI/SiO2-M - Anti-biofilm and antibacterial performance assessment - Corrosion resistance analysis - Cell adhesion assays - Robustness analysis - Table 1 : XPS quantitative analysis results - Table 2 : Analyzed parameters of Tafel plots of SS, SS-DA/PEI/SiO2, and SS-DA/PEI/SiO2-M after exposure to V. natriegens inoculation medium for 1, 3, and 7 days DOI : https://doi.org/10.1007/s11998-022-00718-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00718-7.pdf?pdf=button Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39442 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24069	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)