title: Build-up of an antimicrobial multilayer coating on a textile support based on a methylene blue-poly(cyclodextrin) complex.
abstract: The aim of this work was to develop an antibacterial multilayer coating activated with methylene blue (MB) and based on chitosan (CHT) and cyclodextrin polyelectrolyte (polyCD) onto a non-woven polyethylene terephthalate (PET) textile support. The MB-free and MB-loaded systems were built-up by applying the dip-coating technique, alternating soak cycles of the PET textile preliminarily modified with carboxylate groups in CHT and in polyCD or polyCD/MB complex solutions. The layer-by-layer assembly build-up was followed by optical waveguide lightmode spectroscopy on the one hand and by gravimetry once it was applied on the textile substrate on the other hand. Two chitosan grades were used, low molecular weight (CHT-L) and medium molecular weight (CHT-M). The influence of the molar ratio CD/MB in the polyCD solutions was varied and finally the system underwent a post reticulation with genipin. Such parameters influences were investigated with regard to the loading capacity in MB of the systems, the release kinetics profiles of MB in pure water, phosphate buffer and MEM media, and the degradation of the self-assembled coating in the same media. Finally, biological and microbiological tests were performed to demonstrate the cytocompatibility of the systems and their ability to display a sustained antibacterial effect of the device through the MB prolonged release.
authors.affiliation: Université Lille 1, Unité Matériaux et Transformations (UMET) UMR CNRS F-8207, Villeneuve d'Ascq, France.
authors.forename: Adeline
authors.initials: A
authors.lastname: Martin
authors.forename: Nicolas
authors.initials: N
authors.lastname: Tabary
authors.forename: Feng
authors.initials: F
authors.lastname: Chai
authors.forename: Laurent
authors.initials: L
authors.lastname: Leclercq
authors.forename: Jatupol
authors.initials: J
authors.lastname: Junthip
authors.forename: François
authors.initials: F
authors.lastname: Aubert-Viard
authors.forename: Christel
authors.initials: C
authors.lastname: Neut
authors.forename: Marek
authors.initials: M
authors.lastname: Weltrowski
authors.forename: Nicolas
authors.initials: N
authors.lastname: Blanchemain
authors.forename: Bernard
authors.initials: B
authors.lastname: Martel
mesh_terms: D000890:Anti-Infective Agents / Q000008:administration & dosage* / Q000737:chemistry*; D002460:Cell Line; D048271:Chitosan / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D006801:Humans; D015918:Infusion Pumps, Implantable; D046911:Macromolecular Substances / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008422:Materials Testing; D008751:Methylene Blue / Q000008:administration & dosage / Q000737:chemistry; D011093:Polyethylene Terephthalates / Q000737:chemistry; D013053:Spectrophotometry; D013212:Staphylococcus epidermidis / Q000187:drug effects; D013784:Textiles / Q000032:analysis / Q000382:microbiology; D047392:beta-Cyclodextrins / Q000737:chemistry
chemical_list: D000890:Anti-Infective Agents; D020099:Coated Materials, Biocompatible; D046911:Macromolecular Substances; D011093:Polyethylene Terephthalates; D047392:beta-Cyclodextrins; D048271:Chitosan; C031215:betadex; D008751:Methylene Blue