Figure 2.
Atomic force microscopy (AFM) images of (a) MWNT and (b) MWNT-OH at a concentration of 2 mg/mL with scanned dimension of 1.7 m × 1.7 m.
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.