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.
Scanning electron microscopy images of directed osteoblast deposition of calcium phosphate crystals on carbon nanofibers (CNF) patterns on polycarbonate urethane (PCU). Calcium phosphate crystal chemical composition was confirmed by energy-dispersive spectroscopy. Osteoblasts were cultured for 21 days. Bars = 50 μm (a) and 10 μm (b).
