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Title of article :
Biocidal action of ozone-treated polystyrene surfaces on vegetative and sporulated bacteria
Author/Authors :
Ahlem Mahfoudh، نويسنده , , Jean Barbeau، نويسنده , , Michel Moisan، نويسنده , , Annie Leduc، نويسنده , , Jacynthe Séguin، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
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Abstract :
Surfaces of materials can be modified to ensure specific interaction features with microorganisms. The current work discloses biocidal properties of polystyrene (PS) Petri-dish surfaces that have been exposed to a dry gaseous-ozone flow. Such treated PS surfaces are able to inactivate various species of vegetative and sporulated bacteria on a relatively short contact time. Denaturation of proteins seems likely based on a significant loss of enzymatic activity of the lysozyme protein. Characterization of these surfaces by atomic-force microscopy (AFM), Fourier-transform infra-red (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) reveals specific structural and chemical modifications as compared to untreated PS. Persistence of the biocidal properties of these treated surfaces is observed. This ozone-induced process is technically simple to achieve and does not require active precursors as in grafting.
Keywords :
Surface treatment , Antibacterial , Sporicide , Bioactivity , Polystyrene , Ozone
Journal title :
Applied Surface Science
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Link To Document :