Abstract
A water-insolubilized film was prepared by UV irradiation on a dried DNA film. When a UV-irradiated DNA was examined using a circular dichroism spectroscopy, a double stranded structure was observed as well as that of native DNA. The UV irradiated DNA film was also accumulated intercalating reagents. These results suggested that the double stranded structure was involved in the UV irradiated DNA film with a three-dimensional network. The thymine-thymine dimer formation was suggested to be involved in the cross-linking reactions by the polymerization analysis using poly(dA)-poly(dT) and poly(dG)-poly(dC). We also demonstrate the utilization of the UV-irradiated DNA film as a functional material for the accumulation of harmful DNA intercalating pollutants in aqueous solution. These results suggested that the UV-irradiated DNA film was applicable as a functional material for medical, engineering and environmental sciences.
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