Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12866-016-0832-2/MediaObjects/12866_2016_832_Fig3_HTML.gif)
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