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.
Histograms of statistical results.a,bThe average roughness and cell height of the resting and the activated groups are approximately equal. However, mean height of particles of surface nanostructure, cell diameter and cell volume in the activated group are larger than those in the resting group (a–c)
