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S. aureus cells were imaged using TEM. Disruptions in the bacterial cell wall are highlighted with a red arrow: (A) control untreated S. aureus, (B) S. aureus treated with the control polymer P, (C) S. aureus incubated with PEP, and (D) S. aureus incubated with P-PEP. PEP and P-PEP caused the rupture of the cell wall.
