Communicable diseases can be transmitted by contaminated water and water decontamination process is fundamental to eliminate micro-organisms. 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. With both treatments 100% microorganisms reduction was reached in static assessment, while in dynamic conditions better results were obtained by chitosan treated gauze, reaching 100% S.Aureus and K. Pneumoniae reduction with 4 s and 8 s contact time respectively. This substrate could be a good candidate for application as biological filter.

Antibacterial Water Filtration by Cationized or Chitosan Coated Cotton Gauze / Periolatto, Monica; Ferrero, Franco; Vineis, C.; Varesano, A.. - STAMPA. - 38:(2014), pp. 235-240. ((Intervento presentato al convegno 4th International Conference on Industrial Biotechnology (IBIC2014) tenutosi a Rome, ITALY nel JUN 08-11, 2014 [10.3303/CET1438040].

Antibacterial Water Filtration by Cationized or Chitosan Coated Cotton Gauze

PERIOLATTO, MONICA;FERRERO, Franco;
2014

Abstract

Communicable diseases can be transmitted by contaminated water and water decontamination process is fundamental to eliminate micro-organisms. 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. With both treatments 100% microorganisms reduction was reached in static assessment, while in dynamic conditions better results were obtained by chitosan treated gauze, reaching 100% S.Aureus and K. Pneumoniae reduction with 4 s and 8 s contact time respectively. This substrate could be a good candidate for application as biological filter.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2588528
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