The production and antibacterial effectiveness of silver nanocrystalline dressing

Since the wound infections caused by gram positive and negative bacteria are very common, application of Nanocrystalline silver in wound healing bands is recently of one of points of research interests. The epithelization effect and control of wound infection are the most important factors for selection of disinfecting factors in these bands. This study was performed to produce nanocrystalline silver bands and to investigate their efficiency on control of selected gram positive and negative bacteria.
In this study, silver nanocrystalline dressing was produced using nylon dressing and silver ions. Thereafter, we evaluate its antibacterial effect against Staphylococcus aureus and Escherichia coli. The experiments were designed based on Taguchi method for investigation different parameters on antimicrobial effect of silver dressing.
The silver dressing showed an impressive effect on inhibition of the growth of mentioned bacteria and leads to the inhibition zone diameter of 5.5 cm around the dressing pieces. AgNO3 was the most important parameter in determination of the antimicrobial effect of silver dressing (approximately 65% efficiency).
Silver nanocrystalline dressing was effective on inhibition of microorganisms growth. Furthermore, application of Taguchi method was highly effective in optimization process of this investigation.