Fig. 3

Confocal scanning laser micrographs of Pseudomonas aeruginosa NCIMB 10548 biofilms grown in the collagen wound biofilm model. Sampled after a 6 h, b 12 h, c 24 h and d 48 h of continuous culture. Main panels show XY plane, right panels show YZ slice and bottom panels show XZ slice. Green Syto 9 staining indicates live bacterial cells and red propidium iodide staining indicates dead bacterial cells