Antimicrobial finishing of textiles intended for food processing industry by plasma enhanced chemical vapor deposition - physical vapor deposition of Ag-SiOCH composites coated with AlxOy or SiOCH encapsulation layers

被引:12
作者
Brunon, Celine [1 ]
Chadeau, Elise [2 ]
Oulahal, Nadia [2 ]
Grossiord, Carol [3 ]
Dubost, Laurent [4 ]
Simon, Farida [5 ]
Bessueille, Francois [1 ]
Degraeve, Pascal [2 ]
Leonard, Didier [1 ]
机构
[1] Univ Claude Bernard Lyon 1, CNRS, ENS Lyon, Inst Sci Analyt,UMR 5280, 5 Rue Doua, F-69100 Villeurbanne, France
[2] Univ Claude Bernard Lyon 1, BioDyMIA Bioingn & Dynam Microbienne Interfaces A, Equipe Mixte Accueil 3733, ISARA Lyon,IUT Lyon 1, Technopole Alimentec,Rue Henri Boissieu, F-01000 Bourg En Bresse, France
[3] Sci & Surface, 64 Chemin Mouilles, F-69130 Ecully, France
[4] HEF, ZI SUD, Rue Benoit Fourneyron, F-42166 Andrezieux Boutheon, France
[5] TDV Ind, 43 Rue Bas Bois,BP 1217, F-53012 Laval, France
关键词
Antimicrobial textile; Silver; SiOCH; Aluminium oxide; Encapsulation; Plasma-enhanced chemical vapor deposition; Physical vapor deposition; Surface analysis; SOL-GEL METHOD; THIN-FILMS; SILVER;
D O I
10.1016/j.tsf.2017.03.004
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In previous work, textiles for the food processing industry were coated with an original deposition technique based on a combination of plasma-enhanced chemical vapor deposition and physical vapor deposition to obtain similar to 10 nm size silver clusters incorporated into a SiOCH matrix (Ag-SiOCH coating). However, the stability of the coating in end-use conditions (abrasion during washing cycles and/or oxidation) is questionable and this work is specifically devoted to study the effect on antimicrobial activity of Ag-SiOCH coatings after deposition of high porosity and low density protective layers. The Ag-SiOCH coating was thus covered with encapsulation layers (either hydrophobic SiOCH or hydrophilic AlxOy). The surface and bulk characterisation results of the multilayer coatings using X-ray Photoelectron Spectroscopy (XPS), Dynamic Secondary Ion Mass Spectrometry (DSIMS) and Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) were used to study the composition of the coating and quantify the presence of the antimicrobial agent (Ag) at the surface and inside of the coating. Antibacterial tests indicated that antimicrobial activity of coated textiles was maintained. However, the antimicrobial activity was not directly correlated with the Ag content detected at the top surface or with the distance from the top surface to the part of the coating containing a significant amount of silver (as detected by XPS) and diffusion mechanisms during antibacterial tests could play a significant role. In particular, the hydrophilic character of AlxOy deposit likely allowed a better availability of the antimicrobial agent (Ag) but it was also observed for SiOCH hydrophobic deposits. (c) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:132 / 141
页数:10
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