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Chapter 2
2.6.2. Scanning Electron Microscopy
SEM analysis was also used to assess biofilm removal from the surfaces
using the swabbing technique. Figure 2.5 illustrates the biofilm attached to
the surface was not successfully removed from the smooth surface (glass)
or the porous/rough concrete surface via swabbing.
Figure 2.4: SEM image of glass and concrete demonstrating incomplete
biofilm removal
Figure 2.4 demonstrates incomplete removal of the Salmonella enterica
subspecies enterica serovar Agona S08-0601 from the glass (left) and
concrete (right) surfaces after biofilm formation for 48 hours. Removal
using a sterile cotton swab was assessed.
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