Colloidal Silver as a New Anti-microbial Agent

Silver has the advantage of having broad antimicrobial activities against Gram-negative and Gram-positive bacteria. This research was the result of bio-assay experimentation on the effects of colloidal silver on multi resistant bacteria. The initial idea was to determine the antimicrobial activity of colloidal silver so it could be used as a powerful in-vitro antimicrobial agent. Antimicrobial activity was determined by means of agar diffusion. Resistant clinical isolates of Staphylococcus aureus, Escherichia coli, pseudomonas aregnosa and Salmonella typhi were used in the test organisms. It was concluded this study showed successful formation of colloidal silver and their antibacterial activity against all tested pathogens.
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