Figure 2From: Antibacterial activities of gold and silver nanoparticles against Escherichia coli and bacillus Calmette-GuérinNPs solution was added to LB medium for four hours to examine the aggregation. (A) 10 μg/ml citrate Au NPs in LB medium. (B) 10 μg/ml PAH Au NPs in LB medium. (C) 10 μg/ml Ag NPs in LB medium. Scale bars represent 50 nm.Back to article page