Table 1 Antibacterial activity of different human pathogenic bacterial strains. Positive control – Vancomycin (Gram positive), gentamicin (Gram negative), DMSO (Negative control) – Absence of zone of inhibition. Data are expressed as the mean ± standard deviation of three replicates. Distinct superscript letters (a, ab, b, etc.) within the same column denote statistically significant differences among the treatment groups (p < 0.05) according to tukey’s multiple range test. Groups bearing the same letter do not differ significantly from one another.

From: A novel approach to silver nanoparticle biosynthesis using ursolic acid from Catharanthus roseus for therapeutic effects