Figure 3.
Scanning electron micrograph of (a) plain capillary, (b) CNT capillary, (c) L1 capillary, and (d) L2 capillary at 1200× showing different morphologic cal properties.
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.