Figure 11
Enhanced biofilm inhibitory activitity of antibiotics and AgNPs. The anti-biofilm activity of AgNPs was assessed by incubating all test strains with sublethal concentrations of ampicillin or AgNPs, or combinations of AgNPs with the ampicillin antibiotic for 4 h. The results are expressed as the means ± SD of three separate experiments, each of which contained three replicates. Treated groups showed statistically significant differences from the control group by the Student's t test (p < 0.05).