Fig. 3

Internalization of Salmonella Typhimurium cells within the BCP (0.1 %) X (0.1 %) composite. Using the confocal laser scanning microscopy, S. Typhimurium cells dyed with Bromothymol Blue (shown in green) were observed to attach a on the BCPX surface (cellulose fibrils shown in red) and at b 2 μm, c 4 μm, d 6 μm and e 8 μm below the surface