Figure 5From: Gold nanoparticles as efficient antimicrobial agents for Escherichia coli and Salmonella typhi Evolution as time went on of number of Escherichia coli colonies formed by cells survived in culture media in the presence of H-C (−o-), Au-C (−●-), H-M (−∆–), Au-M (−▲–), H-Y (−◊-) and Au-Y(−♦-). Back to article page