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Colony-forming units of Gram-negative bacteria Escherichia coli (A) and Pseudomonas aeruginosa (B) obtained after treatment with various concentrations of Ag-nanoparticles (NPs)-plant extract (PE; 0, 15, 30, and 60 μg/mL) synthesized with 1.0 mL (blue line), 2.5 mL (red line), and 7.5 mL (black line) PE. Values presented are mean and standard deviation of three values.
