| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Research Abstract |
Recently, we prepared water-insoluble DNA-films by UV irradiation. These DNA-films bound endocrine disruptors having a planar structure, such as dioxin and PCB derivatives. However, other harmful endocrine disruptors, which lack a planar structure, such as bisphenol A and diethylstilbestrol, did not bind to the water-insoluble DNA-films. Therefore, we prepared the DNA.cyclodextrin composite material by mixing the DNA and the cyclodextrin (CD). As a result, these composite materials had properties of both the double-stranded DNA, such as intercalation, and the CD, such as encapsulation of an organic molecule into the intramolecular cavity. Therefore, these materials could accumulate not only the harmful compounds with a planar structure, but also the non-planar molecules, such as bisphenol A and diethylstilbestrol. These DNA-CD composite materials may have the potential as novel environmental materials that absorb harmful compounds.
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