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.
The pathway of hydroxyapatite formation. Adapted from Habraken et al.22 with permission. A model of hydroxyapatite formation from PNC in solution. Free ions in solution (a) are in equilibrium with Ca triphosphate PNC (b). PNC aggregates (c), which then coalesce to become an ACP nucleus (d). With the addition of Ca ions and the loss of hydrogen ions, ACP transforms into OCP (e) and subsequently HAP (f), the most thermodynamically favourable state.
