An official website of the United States government
Here's how you know
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.
Observed colour change during the biosynthesis of AuNPs using Nymphaea lotus. The HAuCl4 solution before the addition of N. lotus (A), the formation of NL-AuNPs after the addition of N. lotus to the HAuCl4 solution (B).