Synthesis of copolymer brushes endowed with adhesion to stainless steel surfaces and antibacterial properties by controlled nitroxide-mediated radical polymerization
English
Ignatova, Miléna[University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Voccia, Samuel[University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Gilbert, Bernard[University of Liège (ULg) > Department of Chemistry > Laboratory of Analytical Chemistry and Electrochemistry > >]
Markova, Nadya[Bulgarian Academy of Sciences, Sofia, Bulgaria > Institute of Microbiology > > >]
Mercuri, Paola Sandra[University of Liège (ULg) > > Center for Protein Engineering > >]
Galleni, Moreno[University of Liège (ULg) > > Center for Protein Engineering > >]
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) > >]
Cossement, Damien[University of Mons-Hainaut (UMH) > > Service de Chimie Inorganique et Analytique (LASSIE) > >]
Gouttebaron, Rachel[University of Mons-Hainaut (UMH) > > Service de Chimie Inorganique et Analytique (LASSIE) > >]
Jérôme, Robert[University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Christine[University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
[en] Novel copolymer brushes have been synthesized by a two-step "grafting from" method that consists of the electrografting of poly(2-phenyl-2-(2,2,6,6-tetramethyl-piperidin-1-yloxy)-ethylacrylate) onto stainless steel, followed by the nitroxide-mediated radical polymerization of 2-(dimethylamino ethyl)acrylate and styrene or n-butyl acrylate, initiated from the electrografted polyacrylate chains. The grafted copolymers were quaternized in order to endow them with antibacterial properties. Peeling tests have confirmed the strong adhesion of the grafted copolymer onto the stainless steel substrate. Quartz crystal microbalance experiments have proven that fibrinogen adhesion is lower on the hydrophilic quaternized films compared to the nonionic counterpart. Such quaternized copolymers exhibit significant antibacterial activity against the Gram-positive bacteria S. aureus and the Gram-negative bacteria E. coli.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA