[en] The goal of this paper was to establish the durability profile of antibacterial multilayer thin films under storage and usage conditions. Thin films were built on stainless steel (SS) by means of a layer-by-layer process alternating a negatively charged polyelectrolyte, polyacrylic acid, with a cationic antibacterial peptide, nisin. SS coupons coated with the antibacterial film were challenged under environmental and usage conditions likely to be encountered in real-world applications. The change in antibacterial activity elicited by the challenge was used as an indicator of multilayer film resistance. Antibacterial SS samples could be stored for several weeks at 4°C in ambient air and antibacterial films were resistant to dipping and mild wiping in water and neutral detergent. The multilayer coating showed some weaknesses, however, that need to be addressed.
Research center :
Giga-Systems Biology and Chemical Biology - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Vreuls, Christelle ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Zocchi, Germaine ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Vandegaart, Hélène ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Faure, Emilie ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Detrembleur, Christophe ; Université de Liège - ULiège > Centre d'études et de rech. sur les macromolécules (CERM)
Duwez, Anne-Sophie ; Université de Liège - ULiège > Département de chimie (sciences) > Nano-chimie et systèmes moléculaires
Martial, Joseph ; Université de Liège - ULiège > Département des sciences de la vie > Département des sciences de la vie
Van de Weerdt, Cécile ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Language :
English
Title :
Biomolecule-based antibacterial coating on a stainless steel surface: multilayer film build-up optimization and stability study.