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.
Representative FE-SEM images of (a) Pristine MWCNTs with the red arrow representing smooth wall structure (b) MWCNT-COOH with the white arrows representing rough walls after treatment with acid and the black arrow showing the uncapped end of the functionalized MWCNT (c) MWCNT-NH2 with the black arrow showing the uncapped end of the functionalized MWCNT.
