Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Atomic-force microscopy (AFM) images of representative specimen surfaces (100 × 100 µm2, upper panel), and corresponding scan profiles (lower panel) of the tested blocks. (A) titanium and (B) ceramic. Bright areas indicate high points, and dark areas indicate low points across the surface. (Lower graph: X- and Y-axes measured in micrometers).
