Reference : Antibacterial polyelectrolyte micelles for coating stainless steel
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/117498
Antibacterial polyelectrolyte micelles for coating stainless steel
English
Falentin, Céline [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Faure, Emilie [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Svaldo Lanero, Tiziana [University of Liège (ULg) > Department of Chemistry > Nanochemistry and Molecular Systems (NANOCHEM) > >]
Farina, Fabrice [ArcelorMittal Liège Research, Liège, Belgium > > > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Van de Weerdt, Cécile [University of Liège (ULg) > Centre of Biomedical Integrative Genoproteomics (GIGA-R) > Laboratoire de Biologie Moléculaire et de Génie Génétique > >]
Martial, Joseph mailto [University of Liège (ULg) > Centre of Biomedical Integrative Genoproteomics (GIGA-R) > Laboratoire de Biologie Moléculaire et de Génie Génétique > >]
Duwez, Anne-Sophie mailto [University of Liège (ULg) > Department of Chemistry > Nanochemistry and Molecular Systems (NANOCHEM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
8-May-2012
Langmuir
American Chemical Society
28
18
7233-7241
Yes (verified by ORBi)
International
0743-7463
1520-5827
Washington
DC
[en] coating ; antibacterial polymer
[en] In this study, we report on the original synthesis and characterization of novel antimicrobial coatings for stainless steel by alternating the deposition of aqueous solutions of positively charged polyelectrolytes micelles doped with silver based nanoparticles with a polyanion. The micelles are formed by electrostatic interaction between two oppositely charged polymers, a polycation bearing 3,4-dihydroxyphenylalanine units (DOPA, a major component of natural adhesives) and a polyanion (poly(styrene sulfonate), PSS) without using any block copolymer. DOPA units are exploited for their well-known ability to anchor to stainless steel and to form and stabilize biocidal silver nanoparticles (Ag0). The chlorine counter-anion of the polycation forms and stabilizes biocidal silver chloride nanoparticles (AgCl). We demonstrate that two layers of micelles (alternated by PSS) doped by silver particles are enough to impart to the surface a strong antibacterial activity against Gram-negative E. coli. Moreover, micelles that are reservoirs of biocidal Ag+ can be easily reactivated after depletion. This novel water-based approach is convenient, simple and attractive for industrial applications.
Center for Education and Research on Macromolecules (CERM)
Researchers
http://hdl.handle.net/2268/117498
10.1021/la3003965
http://pubs.acs.org/doi/pdf/10.1021/la3003965

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