Flavonoids occupy an important position in chemistry and pharmacology. Various flavonoids, particularly quercetin have potential to form molecular complexes with nucleic acid structure and have attracted recent attention for their prospective clinical and pharmacological utility. This review highlights the properties of quercetin and its different metal complexes as well as their interactions with DNA reported by several research groups. Various analytical techniques were employed including absorbance, fluorescence and circular dichroism spectroscopies, viscosity and voltammetry to provide more details about binding mechanism of these materials with DNA.
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