Reference : Stainless steel grafting of hyperbranched polymer brushes with an antibacterial activ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/14189
Stainless steel grafting of hyperbranched polymer brushes with an antibacterial activity: synthesis, characterization and properties
English
Ignatova, Milena [University of Liège (ULg), Bulgarian Academy of Science (Sofia, Bulgaria) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM, Liège) and Laboratory of BioactiVe Polymers (Sofia) > >]
Voccia, Samuel [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Gabriel, Sabine [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 > >]
Cossement, Damien [University of Mons-Hainaut (UMH) > > SerVice de Chimie Inorganique et Analytique (LASSIE) > >]
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) > >]
20-Jan-2009
Langmuir
American Chemical Society
25
2
891-902
Yes (verified by ORBi)
International
0743-7463
1520-5827
Washington
DC
[en] electropolymerization ; electrografting ; coating ; antibacterial polymer
[en] Two strategies were used for the preparation of hyperbranched polymer brushes with a high density of functional groups: (a) the cathodic electrografting of stainless steel by poly[2-(2-chloropropionate)ethyl acrylate] [poly(cPEA)], which was used as a macroinitiator for the atom transfer radical polymerization of an inimer, 2-(2-bromopropionate)ethyl acrylate in the presence or absence of heptadecafluorodecyl acrylate, (b) the grafting of preformed hyperbranched poly(ethyleneimine) onto poly(N-succinimidyl acrylate) previously electrografted onto stainless steel. The hyperbranched polymer, which contained either bromides or amines, was quaternized because the accordingly formed quaternary ammonium or pyridinium groups are known for antibacterial properties. The structure, chemical composition, and morphology of the quaternized and nonquaternized hyperbranched polymer brushes were characterized by ATR-FTIR reflectance, Raman spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy. The peeling test confirmed that the grafted hyperbranched polymer films adhered much more strongly to stainless steel than the nongrafted solvent-cast films. The quaternized hyperbranched polymer brushes were more effective in preventing both protein adsorption and bacterial adhesion than quaternary ammonium containing poly(cPEA) primary films, more likely because of the higher hydrophilicity and density of cationic groups.
Center for Education and Research on Macromolecules (CERM)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Researchers
http://hdl.handle.net/2268/14189
10.1021/la802472e
http://pubs.acs.org/doi/pdf/10.1021/la802472e

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