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) Steady-state and (B) time-resolved fluorescence spectra of h-Telo DNA 5 and corresponding duplex 5•8 in the presence of K+ or Na+ ions. Laser profile is shown in gray (prompt). Fluorescence spectrum of ON 5 (magenta) in buffer without added Na+ and K+ ions is also shown. ONs (0.25 μM) were excited at 330 nm with excitation and emission slit widths of 8 and 10 nm, respectively.
