In this study, deoxyribonuc1eic acid (DNA) was used as raw material since its excellent adsorption property of benzene compounds such as cancer-inducing dyes. DNA is very easy dissolve in water; hence result in limit its application. Therefore various cross-linking agents were discussed to increase the water-insolubility of DNA samples, and absorbability of cancer-inducing dye was investigated. The results indicated that the water-insolubility of modified DNA films were improved by using Cu (N03) 2 and a1so found that the modified DNA films possesses excellent adsorption effect on Acridine Orange Dye, a kind of cancer-inducing dye. Three kinds of modified DNA samples which prepared with same amount of DNA: DNA film, DNA dipped nonwoven fabric and DNA 3D porous scaffold were compared with their absorbability of cancer-inducing dye. The DNA film and DNA dipped nonwoven fabric can reach to 86%~92% of dye adsorb ratio in 8 days, but the DNA 3D porous scaffo1ds can reached to 92% in 6 days.
