Fig. 4.

Confocal microscopy images of P. aeruginosa after staining with LIVE/DEAD® BacLight™ Bacterial Viability Kit incubated on CTL and HTE surfaces at five representative time points over 21-days. Live cells stain fluorescent green, whereas bacteria with damaged membranes stain fluorescent red. Top panels represent as-received CTL, and the bottom panels represent the matching time point HTE samples incubated with P. aeruginosa (n ​= ​3). Scale bar ​= ​20 ​μm. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)