Won, J Chae, SK Kim, JH Park, HH Kang, YS Kim, HS 2024-01-21T05:13:51Z 2024-01-21T05:13:51Z 2021-09-03 2005-03-01 0376-7388 https://pubs.kist.re.kr/handle/201004/136653 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 0.1mum 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 x 10(-2) S/cm and 5.0 x 10(-7) cm(2)/s for 1.6 mg/cm(2) of DNA loading, respectively. The self-assembled DNA composite membranes exhibit excellent proton conductivity, and enhanced mechanical properties with decreased methanol permeability. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER METHANOL TRANSPORT PROTON CONDUCTIVITY FILMS Self-assembled DNA composite membranes Article 10.1016/j.memsci.2004.08.031 1 JOURNAL OF MEMBRANE SCIENCE, v.249, no.1-2, pp.113 - 117 JOURNAL OF MEMBRANE SCIENCE 249 1-2 113 117 scie scopus 000227187900012 2-s2.0-13244251237 Engineering, Chemical Polymer Science Engineering Polymer Science Article METHANOL TRANSPORT PROTON CONDUCTIVITY FILMS composite membranes ion-exchange membranes membrane preparation and structure self-assembly DNA