Deposition of silver ions onto DBD and DCSBD plasma treated nonwoven polypropylene

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Authors	RADIĆ Nina OBRADOVIC Bratislav M KOSTIC Mirjana DOJCINOVIC Biljana KURAICA Milorad M ČERNÁK Mirko
Year of publication	2012
Type	Article in Periodical
Magazine / Source	SURFACE & COATINGS TECHNOLOGY
MU Faculty or unit	Faculty of Science
Citation
Web	Full Text
Doi	http://dx.doi.org/10.1016/j.surfcoat.2012.06.020
Keywords	Antimicrobial testing; Antimicrobial textiles; Dielectric barrier discharge (DBD); Diffuse coplanar surface barrier discharge (DCSBD); Silver
Description	The aim of this work is plasma activation of nonwoven polypropylene (PP) using two different ambient air plasma sources: volume dielectric barrier discharge (DBD) and diffuse coplanar surface barrier discharge (DCSBD) and its functionalization by silver ion deposition. To assess the surface changes on the nonwoven PP due to plasma treatment scanning electron microscopy (SEM), atomic force microscopy (AFM) and inductively coupled plasma-optical emission spectroscopy (ICP-OES), were used. Changes in sorption properties of the plasma treated nonwoven PP were evaluated by silver ion uptake. The antimicrobial activity of silver loaded nonwoven PP against the pathogens Escherichia coli, Staphylococcus aureus and Candida albicans was evaluated in vitro. The plasma treatment of PP fabrics resulted in highly improved sorption properties. The quantity of bonded silver ions was in the range from 300 to 5600 mg/kg. Obtained silver loaded nonwoven PP shows antimicrobial activity against the tested pathogens.
Related projects:	In-line plasma-treatments and surface nano-treatments of nonwoven fabrics