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.
Schematic representation of the contact angle measurement. 1) Magnifying glass coupled to the goniometer, 2) Light source, 3) Acrylic chamber, 4) Cleft platform, 5) Water reservoir, 6) Contact angle measurement representation. Source: Nakagawa et al., 2000.
