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Bacterial growth inhibition by the disk method. Porous PHMB/SF sponges were incubated at 37 °C for 24 h on agar plates cultured with (a) E. coli and (b) S. aureus. 0.5%, 1%, 2%, 5%, and 10% represent the sponges with PHMB/SF ratios of 0.5/100, 1/100, 2/100, 5/100, and 10/100, respectively. SF represents PHMB free sponges.
