Figure 4From: Effective polyethylene glycol passivation for the inhibition of surface interactions of peripheral blood mononuclear cells and platelets Representative AFM height profiles acquired in tapping mode. Images of the dimensions 5 × 5 μm (left) and 1 × 1 μm (right) of a PEG covered glass cover slip (top), cleaned glass cover slip (middle) and piranha treated cover slip (bottom) are illustrated. AFM reveals some defects on PEGylated surfaces.Back to article page