Figure 9.
Cross-sectional confocal composite fluorescent images of bacteria within a skin canyon analogue. Representative fluorescent cross sections (1550 × 500 µm) of GFP-labelled S. aureus bacteria within a silicone elastomer topographical canyon analogue over time. An identical contrast change has been imposed on all images to enhance visual clarity. (Rows 1 and 2) Two different canyons coated with a desiccated film of DMSO. (Rows 3 and 4) Two different canyons coated with a desiccated film of DMSO containing 500 mg l−1 d-sphingosine. Original unaltered images are used to establish results shown in figure 10.