Spectroscopic studies of the interactions of Zn(II) ion with herring sperm DNA toward a better understanding of the M-DNA complex

摘要

The fluorescent intensity of the probe molecule methylene blue (MB) increases drastically when Zn(II) ion is added to the MB-DNA solution system,which indicates that some intercalated MB molecules are released due to the binding of Zn(II) ions to the DNA base pairs.