Self-assembled DNA composite membranes

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

doi:10.1016/j.memsci.2004.08.031

Self-assembled DNA composite membranes

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

26 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 language	English
Pages (from-to)	113-117
Number of pages	5
Journal	Journal of Membrane Science
Volume	249
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2004.08.031
Publication status	Published - 2005 Mar 1

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant (KRF-2002-041-D00185).

All Science Journal Classification (ASJC) codes

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

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10.1016/j.memsci.2004.08.031

Cite this

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title = "Self-assembled DNA composite membranes",

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.",

author = "Jongok Won and Chae, {Su Kyoung} and Kim, {Jong Hak} and Park, {Hye Hun} and Kang, {Yong Soo} and Kim, {Hoon Sik}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant (KRF-2002-041-D00185).",

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doi = "10.1016/j.memsci.2004.08.031",

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T1 - Self-assembled DNA composite membranes

AU - Won, Jongok

AU - Chae, Su Kyoung

AU - Kim, Jong Hak

AU - Park, Hye Hun

AU - Kang, Yong Soo

AU - Kim, Hoon Sik

N1 - Funding Information: This work was supported by the Korea Research Foundation Grant (KRF-2002-041-D00185).

PY - 2005/3/1

Y1 - 2005/3/1

N2 - 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.

AB - 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.

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JO - Journal of Membrane Science

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Self-assembled DNA composite membranes

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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