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.
IR absorption spectra of the collagen-like polypeptides (Pro-Pro-Gly)10, (Pro-Hyp-Gly)10, and their components (dipeptides and single amino acids) after low energy ablation. Vertical arrows indicate FEL wavelengths, which were used for the ablation.