Figure 1.
EPR spectra of M1 melanin (A), M2 melanin (B), M3 melanin (C), and M4 melanin (D).
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.