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Evaluation of the coating efficiency of ePTFE grafts: non-coated, fibronectin coated (50 μg/mL) and hpcECM-gel coated (200 μg/mL) specimens. SEM images depict thin fibers on the coated graft surfaces (Scale bar = 5 μm) (A). Immunofluorescence images showed fibronectin positive staining on the fibronectin-coated grafts. HpcECM-gel coated grafts revealed collagen positive fibers and a faint signal for fibronectin (Scale bar = 5 μm) (B).
