Fig. 2
Antibacterial activity of β-peptide polymer-modified PA beads. a Illustration of antibacterial activity against MRSA at initial bacterial density of 1 × 105 CFU/mL with OD and CFU on a counting plate in PBS. b Antibacterial activity with different amounts of beads in 50% FBS at initial bacterial density of 1 × 104 CFU/mL. c SEM characterization of bacteria before and after 2.5 h of incubation