Figure 4From: Enzymatic Digestion of Single DNA Molecules Anchored on Nanogold-Modified SurfacesAFM images of DNA reaction of digestion by DNase I. Height scales = 8 nm except for (a).a DNA topography before digestion. Height scale = 2 nm.b DNA fragments just after a DPN process.c DNA fragments after DPN 0.5 h.d Traces of DNA after DPN 10 hBack to article page