Fig 5. Release profiles of P from: raw material, square; # F2, diamond; # F4, circle and #F6, triangle.
Mean ± SD; (n = 6).
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.