Figure 14.
Scanning electron micrograph (a) PANI A4 (b) PANI B9 (c) PANI D2 (d) and PANI S3.
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.