Fig. 6
Scanning electron microscopic observation of the enhanced anti-biofilm effect of the combination of ΦK2046 and CHC. (A–B) PBS-treated images of FK2046 biofilms magnified 3500 × or 7000 × as controls; (C–D) 1/2 MIC of CHC-treated FK2046 biofilm magnified 3500 × or 7000 ×; (E–F) 107 PFU/mL of ΦK2046 treated FK2046 biofilm magnified 3500 × or 7000 ×; (G–H) 108 PFU/mL of ΦK2046 treated FK2046 biofilm magnified 3500 × or 7000 ×; (I–J) 107 PFU/mL of ΦK2046 co-treated with 1/2 MIC of CHC in FK2046 biofilm magnified 3500 × or 7000 ×; (K–M) 108 PFU/mL of ΦK2046 co-treated with 1/2 MIC of CHC in FK2046 biofilm magnified 3500 × or 7000 ×. Biofilm images formed at 24 h for all groups