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 gross structure of the gel and scaffold. The heparin immobilization was shown by toluidine blue staining. The heparinized gel A and scaffold B were stained purple (metachromatic) while the non-heparinized one stained blue (orthochromatic). The gross structure of the lyophilized scaffolds was also shown C
