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Extraction and internalization of wt P. aeruginosa LPS from a unilamellar lipid bilayer. (a) Confocal XZ scans of six different wt CFTR cells taking up FITC-LPS from a planar lipid bilayer. (b) Nineteen confocal XY scans, from the bottom to the top of the cell at 1-μm intervals, of a single cell taking up FITC-LPS. The first image plane was ≈2 μm below the plane of the lipid bilayer containing P. aeruginosa FITC-LPS. White arrow indicates internalized FITC-LPS in one panel.
