Abstract: | 本研究係利用DNA具有可吸附帶苯之物質之特殊性質對致癌染料吸附效果之探討,由於DNA具優良之水溶性質但因而阻礙其應用之範園,因此嘗試將此水溶性DNA以不同交鏈劑處理,探討改質後DNA的不水溶性,以及對致癌性染料的吸附效果。結果顯示,DNA膜以硝酸銅為交鏈劑處裡後呈現良好之不水溶性效果,將改質後之DNA進行對致癌染料吸附效果之測試後發現,無論以DNA膜單獨吸附或以DNA含浸不織布後吸附都可以達到吸附效果86%~92%的效果,吸附達到飽和的時間約8天,為提高DNA吸附性,我們將DNA發泡做成3D多孔材形態,藉由3D多孔材的多孔性雖然在相同重量下也可以增加其吸附之表面積,結果其吸附時間縮短至6天,吸附率亦可達到92%。
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. |