Figure 1From: Antibacterial activities of gold and silver nanoparticles against Escherichia coli and bacillus Calmette-GuérinTEM images of NPs. Transmission electron micrographs of (A) citrate Au NPs after centrifugation and re-suspension in water, (B) PAH Au NPs as prepared, (C) Ag NPs after centrifugation and re-suspension in water, and (D) E. coli in the absence of NPs.Back to article page