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S. pneumoniae serotype 14 day 1, 3, 5 and 7 biofilms imaged using (a) scanning electron microscopy with Alcian Blue staining (8,000x magnification; scale bar: 5 µm), and (b) confocal microscopy using Live/Dead staining, with sideviews (YZ – right) and (XZ – bottom) sagittal sections of the biofilm.

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posted on 04.09.2014, 03:46 authored by Raymond N. Allan, Paul Skipp, Johanna Jefferies, Stuart C. Clarke, Saul N. Faust, Luanne Hall-Stoodley, Jeremy Webb

Scale bar beside YZ sagittal sections represents average biofilm thickness. Scale bar in xy pane: 30 µm. (c) Bar chart comparing the total number of cells between day 1, 3, 5 and 7 biofilms. (d) Bar chart comparing number of viable cells between day 1, 3, 5 and 7 biofilms through CFU cm−2 measurement.