Figure 5.
Scanning electron microscopy (SEM) images of Roy-OA NPs at (a) lower (×25,000) and (b) higher (×70,000) magnifications.
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.