Fig. 3
From: Rhamnolipids and surfactin inhibit the growth or formation of oral bacterial biofilm
Biofilm observation. Representative images of A. actinomycetemcomitans Y4 (a, d, g), S. mutans UA159 (b, e, h), and S. sanguinis ATCC10556 (c, f, i) biofilms as visualized by SEM. The SEM images for the following samples is shown: untreated control (0 w/v%), rhamnolipid treatment (0.65 w/v%), and surfactin treatment (1.04 w/v%)