Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 22, Issue 24, Pages 5271-5282Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201201106
Keywords
functional coatings; cross-linking; nanogels; antibacterial coatings; antibiofilm coatings
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Funding
- BELSPO [IUAP VI/27]
- Walloon Region (PPP program BIOCOAT)
- University of Liege
- National funds for Scientific Research (FRS-FNRS)
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In this work, long-term antibacterial, antiadhesion, and antibiofilm activities are afforded to industrial stainless steel surfaces following a green and bio-inspired strategy. Starting from catechol bearing synthetic polymers, the film cross-linking and the grafting of active (bio)molecules are possible under environmentally friendly conditions (in aqueous media and at room temperature). A bio-inspired polyelectrolyte, a polycation-bearing catechol, is used as the film-anchoring polymer while a poly(methacrylamide)-bearing quinone groups serves as the cross-linking agent in combination with a polymer bearing primary amine groups. The amine/quinone reaction is exploited to prepare stable solutions of nanogels in water at room temperature that can be easily deposited to stainless steel. This coating provides quinone-functionalized surfaces that are then used to covalently anchor active (bio)molecules (antibiofilm enzyme and antiadhesion polymer) through thiol/quinone reactions.
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