Figure 3.
Titration of (a) bipyridine (bipy) and (b) cyclo(FSAS(1)SSKP) (20 µM in 20 mM 2-(N-morpholino)ethanesulfonic acid (MES), 50 mM NaCl, pH 6.0) with increasing concentrations of Cu(NO3)2: 0 µM (black), 5 µM (pink), 10 µM (dark blue), 15 µM (yellow), 20 µM (green), 25 µM (orange) and 30 µM (light blue).