Hydrothermal Synthesis, Structural Characterization, and Interaction Mechanism with DNA of Copper(II) Complex Containing 2,2′-Bipyridine

Figure 6

Influence of hsDNA on the UV-Vis spectra of Cu-bipy (pH 7.40). From curves 0–15, c(Cu-bipy) = 4.0 × 10⁻⁶ mol·L⁻¹; c(hsDNA) = 0.00, 0.17, 0.33, 0.50, 0.67, 0.83, 1.00, 1.17, 1.33, 1.50, 1.67, 1.83, 2.00, 2.17, 2.33, and 2.50 × 10⁻⁶ mol·L⁻¹, respectively.