Figure 2.
TEM images of Fe 3 O 4 with diameter size distribution (A), B-GO-Fe 3 O 4 (B), and N-GO-Fe 3 O 4 (C).
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.