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.
Superimposition of 1H NMR spectra in the aromatic regions for the PK9-H peptide, 2.5 mM, pH 10.5, and T 298 K, with increasing amounts of Ni(II) from 1 : 0.25 to 1 : 0.90 metal to ligand molar ratios. New resonances due to Ni-binding have been labelled by asterisk*.
