Self-assembled DNA composite membranes

Jongok Won, Su Kyoung Chae, Jong Hak Kim, Hye Hun Park, Yong Soo Kang, Hoon Sik Kim

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18 Citations (Scopus)

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 × 10-2 S/cm and 5.0 × 10 -7 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.

Original languageEnglish
Pages (from-to)113-117
Number of pages5
JournalJournal of Membrane Science
Volume249
Issue number1-2
DOIs
Publication statusPublished - 2005 Mar 1

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All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Won, J., Chae, S. K., Kim, J. H., Park, H. H., Kang, Y. S., & Kim, H. S. (2005). Self-assembled DNA composite membranes. Journal of Membrane Science, 249(1-2), 113-117. https://doi.org/10.1016/j.memsci.2004.08.031