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.
(A): ECD spectrum of collagen with the cleavage map (fragments observed in magnitude-mode are in grey; new fragments in absorption-mode are in black, labelled in the spectrum). (B): zoom in of fragment in magnitude (top), absorption-mode (bottom), and its isotope simulation (middle).
