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DNase I-gold complexes labeling of H. pylori ATCC 43629/NCTC 11639 planktonic phase. The colloidal gold labeled DNase I particles are used to detect the eDNA. The arrow represents the presence of eDNA on pOMVs membrane surface (a,B,C,D,e); while the arrow head (A,E) represents the presence of eDNA on bacteria cell walls. OMVs appear between two cells (F, circles). The dashed squares (a,e), higher magnification of (A,E), highlight eDNA on the pOMVs surface.
