Fig. 2. (Top) 1-pyrenebutyric acid A (λexc = 342 nm) and peptide B (λexc = 352 nm) in water (0.01% DMSO). (Bottom) Normalised fluorescence spectra of 2 (λexc = 352 nm, water), 3 (λexc = 350 nm, water) and 3 (λexc = 350 nm, DMSO). Normalisation was performed by dividing a complete spectrum by the maximal intensity of emission.
