Abstract
AbstractThe electrochemical property of dinuclear copper(II) complex containing dimethylglyoxime [Cu2(Hdmg)4] was studied with cyclic voltammetry. Cu2(Hdmg)4 had an irreversible oxidation peak in pH 5.0 B–R buffer solution at the stearic acid‐modified carbon paste electrode. Cyclic voltammetry, UV‐vis absorption spectra and viscosity measurements were used to study the interaction of Cu2(Hdmg)4 with herring fish sperm DNA. Cu2(Hdmg)4 interacts with the bases of DNA to form nonelectroactive adducts. The interaction of Cu2(Hdmg)4 with ssDNA was stronger than that of Cu2(Hdmg)4 with dsDNA because of the exposed bases of ssDNA. The gene sequence related to the BAR transgene in the transgenic corn was detected using Cu2(Hdmg)4 as electroactive indicator.
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