Figure 5
Antibacterial activity of silver nitrate solution, plant extract, AgNPs suspension, and chloramphenicol on E. coli and S. epidermidis. (a) Antibacterial efficacy analysis was performed by using Kirby Bauer (disc diffusion) method. Three samples were used i.e. (X) 20 μl of SN, (Y) 20 μl of SPE and (Z) 20 μg of SL-SpNPs whereas chloramphenicol, C was used as a positive control in all experiments. Zones of inhibition (ZOI) around the discs depicts microbial growth inhibition. (b) The ZOI were calculated by using a scale in mm and their mean value is shown by bar plots and standard deviation as error bars. No ZOI is found is found for sample Y.
