Fig. 1

Growth curves of E. coli K1 grown in nutrient broth at 37 °C. Colony forming units of E. coli K1 in absence (grey line) or presence of 0.5 μg/mL HDN conjugated AgNPs (red line) or 0.5 μg/mL unconjugated AgNPs (blue line). Bacteria were counted at different time points. Each of the C.F.U. value represents the mean of duplicates