Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9685049 | Journal of Membrane Science | 2005 | 5 Pages |
Abstract
Conductive, self-assembled DNA composite membranes supported by a nano-porous polycarbonate substrate were fabricated. The porous polycarbonate support membranes were modified with Sn2+ positive charges to induce effective DNA adsorption. Optimum pore size of 0.1 μm and high pore density have been realized for track etched nano-porous polycarbonate membrane in the self-assembly process. Proton conductivity and methanol permeability (10 wt.%) were evaluated to be 8.0 Ã 10â2 S/cm and 5.0 Ã 10â7 cm2/s for 1.6 mg/cm2 of DNA loading, respectively. The self-assembled DNA composite membranes exhibit excellent proton conductivity, and enhanced mechanical properties with decreased methanol permeability.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Jongok Won, Su Kyoung Chae, Jong Hak Kim, Hye Hun Park, Yong Soo Kang, Hoon Sik Kim,