title: Chitosan coated cotton gauze for antibacterial water filtration.
abstract: Communicable diseases can be transmitted by contaminated water. Water decontamination process is fundamental to eliminate microorganisms. In this work, cotton gauzes were coated with chitosan using an UV-curing process or cationized by introduction of quaternary ammonium groups and tested, in static and dynamic conditions, as water filter for biological disinfection against both Gram-negative and Gram-positive bacteria. Both materials showed good antibacterial activity, in static assessment, instead in dynamic conditions, chitosan treated gauze showed a high antimicrobial efficiency in few seconds of contact time. This composite could be a good candidate for application as biological filter.
authors: Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy. Electronic address: franco.ferrero@polito.it.
authors: Franco
authors: F
authors: Ferrero
authors: Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy.
authors: Monica
authors: M
authors: Periolatto
authors: CNR-ISMAC, National Research Council of Italy, Institute for Macromolecular Studies, Corso Giuseppe Pella, 16, 13900 Biella, Italy.
authors: Claudia
authors: C
authors: Vineis
authors: CNR-ISMAC, National Research Council of Italy, Institute for Macromolecular Studies, Corso Giuseppe Pella, 16, 13900 Biella, Italy.
authors: Alessio
authors: A
authors: Varesano
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D048271:Chitosan / Q000737:chemistry / Q000494:pharmacology*; D020099:Coated Materials, Biocompatible / Q000737:chemistry / Q000494:pharmacology*; D032561:Cotton Fiber; D003666:Decontamination; D005374:Filtration / Q000295:instrumentation; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006094:Gram-Positive Bacteria / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D018508:Water Purification / Q000295:instrumentation
chemical_list: D000900:Anti-Bacterial Agents; D020099:Coated Materials, Biocompatible; D048271:Chitosan
keywords: Antibacterial; Chitosan; Cotton; UV-curing; Water filtration