Figure 2.
SEM images of original filter paper without AuNP solution immersion at (a) 100,000× and (b) 200,000× magnification, and AuNP-immersed filter paper at (c) 80,000× and (d) 200,000× magnification, respectively.
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.