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.
Nanochannel filling speeds vs channel height. Sacrificial core materials include aluminum (Al), chromium (Cr), and germanium (Ge). The dashed line indicates the expected theoretical result assuming perfect wettability. Each of the data points shown corresponds to channels with top wall thicknesses of 5 μm.
