title: Design of antimicrobial membrane based on polymer colloids/multiwall carbon nanotubes hybrid material with silver nanoparticles.
abstract: The aim of this study was to obtain membranes with antimicrobial activity presenting a complex sandwich-type structure. The outer layers are comprised of poly(methyl methacrylate) membranes, whereas the inner active layer consists of a modified commercial membrane to achieve antimicrobial properties. This activity arises due to the presence of silver nanoparticles in a material with a hybrid composition deposited on a commercial membrane. This hybrid material consists of polymer colloids and multiwall carbon nanotubes used for both the stabilization of the active layer by the interconnections of the polymer particles and as active component. The filtration tests revealed a good stability of the materials and an increased hydrophilicity of the hybrid membranes. The antimicrobial properties have been evaluated using Staphylococcus aureus and Escherichia coli, and have been correlated with the content and migration rate of silver ions.
authors.affiliation: Department of Bioresources and Polymer Science, University Politehnica of Bucharest , 149 Calea Victoriei, RO-010072 Bucharest, Romania.
authors.forename: Edina
authors.initials: E
authors.lastname: Rusen
authors.forename: Alexandra
authors.initials: A
authors.lastname: Mocanu
authors.forename: Leona Cristina
authors.initials: LC
authors.lastname: Nistor
authors.forename: Adrian
authors.initials: A
authors.lastname: Dinescu
authors.forename: Ioan
authors.initials: I
authors.lastname: Călinescu
authors.forename: Gabriel
authors.initials: G
authors.lastname: Mustăţea
authors.forename: Ştefan Ioan
authors.initials: ŞI
authors.lastname: Voicu
authors.forename: Corina
authors.initials: C
authors.lastname: Andronescu
authors.forename: Aurel
authors.initials: A
authors.lastname: Diacon
mesh_terms: D000179:Acrylates / Q000737:chemistry; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003102:Colloids / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects; D005374:Filtration; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D011108:Polymers / Q000737:chemistry*; D012834:Silver / Q000494:pharmacology*; D013056:Spectrophotometry, Ultraviolet; D013059:Spectrum Analysis, Raman; D013211:Staphylococcus aureus / Q000187:drug effects; D020058:Styrene / Q000737:chemistry
chemical_list: D000179:Acrylates; D000900:Anti-Bacterial Agents; D003102:Colloids; D008567:Membranes, Artificial; D037742:Nanotubes, Carbon; D011108:Polymers; D012834:Silver; D020058:Styrene; C036658:acrylic acid
keywords: antimicrobial; membrane; multiwall carbon nanotubes; polymer colloids; silver nanoparticles