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(a,b) Asymmetrical zone of inhibition (black arrow) seen in E. coli and S. aureus Petri plates. SEM images of 3T3 fibroblast cells growing on (c) CDI samples (scale bar = 40 μm) and (d) control (scale bar = 10 μm). (e) Optical densities of S. aureus and E. coli cultures with the iodinated collagen-based samples over 24 h of incubation and (f) optical densities of 3T3 fibroblast cells on the CDI sample compared with the CP sample on MTT assay.
