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Optical images of agar plates characteristic of the antibacterial activities of SBA-15/PDA, SBA-15/PDA/Ag, CCM@SBA-15/PDA, and CCM@SBA-15/PDA/Ag against E. coli (A) and S. aureus (B). Assay conditions: 100 μL of 10 mg/mL nanocomposite dispersions were added to the plate with 10 μL of E. coli inoculated (∼105 cfu/mL); 200 μL of 10 mg/mL nanocomposite dispersions were added to the plate with 10 μL of S. aureus inoculated (∼105 CFU/mL). Scale bar: 20 mm.
