sample zone of inhibition sample zone of inhibition AgNps with xylitol 26 27 After 24 hours After 48 hours AgNps 21 22 AgNps with xylitol 26 27 cefipime 35 36 AgNps 21 22 distilled water 0 0 cefipime 35 36 plant extract 10 10 distilled water 0 0 plant extract 10 10