Synthesis and Characterization of the Ligand Based on Benzimidazole and Its Copper Complex: DNA Binding and Antioxidant Activity
Figure 4
Electronic spectra of the free ligand buobb (a) and the complex Cu(II) (c) in Tris-HCl buffer upon addition of CT-DNA. The arrow shows the emission intensity changes upon increasing DNA concentration. [DNA]/() versus [DNA] for the titration of the ligand buobb (b) and the complex Cu(II) (d) with CT-DNA.