Fig. 3From: Production of highly immunogenic and safe Triton X-100 produced bacterial ghost vaccine against Shigella flexneri 2b serotypeSEM image of Sf-BGCs/TX100. Scanning electron microscope (SEM) image of Sf-BGCs/TX100 pellet at magnification power × 16,000. White arrows point to a transmembrane tunnel formed in the cell walls of the cells treated with (5%) v/v TX100 for 12 hBack to article page