Figure 6

Antibacterial activity (zone of inhibition) of O-AgNPs against two human pathogenic bacteria E. coli (A,C) and B. cereus (B,D) where (1) is AgNO₃, (2) O-AgNPs stored, (3) O-AgNPs, (4) is O. limnetica extract, (5) A is Cefaxone-AgNPs & (5) B is tetracycline-AgNPs and (6) A is Cefaxone & (6) B is tetracycline.