Figure 4.
Water contact angles of films with chitosan/PAH ratios of 100/0 (CTH-0), 90/10 (CTH-1), 80/10 (CTH-2), 70/30 (CTH-3), 60/40 (CTH-4), and 40/60 (CTH-5).
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.