Figure 4From: New potential antitumoral fluorescent tetracyclic thieno[3,2-b]pyridine derivatives: interaction with DNA and nanosized liposomes Normalized fluorescence spectra (λ exc = 360 nm) of compound 2 (4 × 10 -6 M) in several solvents; the inset shows the absorption spectrum of 2 in dichloromethane (2 × 10 -5 M) as an example.Back to article page