Adsorption and antibacterial activity of soluble and precipitated chitosan on cellulose viscose fibersFras Zemljič, Lidija (Avtor) Ristić, Tijana (Avtor) Tkavc, Tina (Avtor) , INDA, Association of the Nonwoven Fabrics Industry (Lastnik avtorskih pravic) functionalized viscosechitosan solutionprecipitatespotentiometric titrationspectrophotometryantimicrobial activityThe aim and novelty of this work was to compare the adsorption of totally-soluble chitosan (acidic solution) against the adsorption of precipitated chitosan, onto cellulose fibers. The influences of both these chitosan-adsorption procedures on a final amino groupćs content in functionalized cellulose fibers were studied, using potentiometric titration and the conventional spectrophotometric C.I. Acid Orange 7 method. Surface modification and adsorption of chitosan were, in addition, monitored by determining XPS spectra. The antimicrobial activities of both chitosan- functionalised cellulose fibers were examined, in regard to pathogen bacteria and fungus.20122012-06-01 10:13:34Znanstveno delo27256sl