Reference : All-in-one strategy for the fabrication of antimicrobial biomimetic films on stainles...
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/29643
All-in-one strategy for the fabrication of antimicrobial biomimetic films on stainless steel
English
Charlot, Aurélia [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Sciannamea, Valérie [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Lenoir, Sandrine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Faure, Emilie mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Van de Weerdt, Cécile mailto [Université de Liège - ULg > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire >]
Martial, Joseph mailto [Université de Liège - ULg > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire >]
Archambeau, Catherine [ArcelorMittal Liege Research > > > >]
Willet, Nicolas mailto [Université de Liège - ULg > Département de chimie (sciences) > Nano-chimie et systèmes moléculaires >]
Duwez, Anne-Sophie mailto [Université de Liège - ULg > Département de chimie (sciences) > Nano-chimie et systèmes moléculaires >]
Fustin, Charles-André [Université Catholique de Louvain - UCL > > > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
5-Dec-2009
Journal of Materials Chemistry
Royal Society of Chemistry
19
4117-4125
Yes (verified by ORBi)
International
0959-9428
1364-5501
Cambridge
United Kingdom
[en] biomimetic ; stainless steel ; film ; antimicrobial polymer ; coating
[en] Here we report on an all-in-one approach to prepare robust antimicrobial films on stainless steel. The strategy is based on the layer-by-layer deposition of polyelectrolytes. A polycationic copolymer bearing 3,4-dihydroxyphenylalanine units (DOPA, a major component of natural adhesives) was synthesized and co-deposited with precursors of silver nanoparticles as the first layer. The presence of DOPA units ensures a strong anchoring on the stainless steel substrate, and the silver nanoparticles are sources of biocidal Ag+, providing stainless steel with antimicrobial activity. We show that multilayered films, obtained by alternating this nanoparticle-loaded polycationic copolymer with polystyrene sulfonate, a commercial polyanion, results in stainless steel with high antibacterial activity against Gram-negative E. coli bacteria. The polycationic layers are a reservoir of Ag+ that can be reactivated after depletion. The whole process of film formation, including the synthesis of the copolymer, is conducted in aqueous media under very mild conditions, which makes it very attractive for industrial scale-up and sustainable applications.
Giga-Systems Biology and Chemical Biology ; Center for Education and Research on Macromolecules (CERM)
The "Région Wallonne" in the frame of the BIOCOAT program ; Arecelor Mittal ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/29643
10.1039/b820832h
http://www.rsc.org/ej/JM/2009/b820832h.pdf

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