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Topography and roughness analysis via AFM tools of the stent samples
| Groups | Root mean square (nm) | Peak to valley (nm) |
|---|---|---|
| Co–Cr | 1,256.7 | 191.2 |
| Ni–Ti | 1,232.1 | 178.42 |
| Stainless steel | 1,408.7 | 186.4 |
Abbreviations: AFM, atomic force microscopy; Co–Cr, cobalt–chromium alloy stent; Ni–Ti, nickel–titanium alloy stent.
