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Transmission electron micrograph of BAECs on polystyrene dish. Both simple collagen-coated surface and collagen-coated ion-implanted surface demonstrate BAECs attachment.
A, Note thickness of coated collagen on simple coating surface (large arrow). Detachment of cell-collagen complex may appear to occur from interface between coated collagen and PS surface (small arrow).
B, On the other hand, direct cell adhesion was observed on ion-implanted collagen-coated PS surface.
