Tough supersoft sponge fibers with tunable stiffness from a DNA self-assembly technique.
2009-03-04 10:57:51 조회수608
Chang Kee Lee2, Su Ryon Shin2, Ji Young Mun3, Sung-Sik Han Dr.3, Insuk So Dr.2,4, Ju-Hong Jeon Dr.4, Tong Mook Kang Dr.5, Sun I. Kim Dr.2, Philip G Whitten Dr.1, Gordon G. Wallace Dr.1, Geoffrey M. Spinks Dr.1 andSeon Jeong Kim Dr.2 1 ARC Centre of Excellence for Electromaterials Science, University of Wollongong, NSW (Australia) 2 Center for Bio-Artificial Muscle, Department of Biomedical Engineering, Hanyang University, Seoul (Korea), Fax: +82-2-2291-2320 3 School of Life Sciences and Biotechnology, Korea University, Seoul (Korea) 4 Deptartment of Physiology, Seoul National University, Seoul (Korea) 5 Department of Physiology, Sungkyunkwan University, Suwon (Korea) 원문 링크 :


Tough and soft: Highly porous, spongelike materials self-assemble by calcium ion condensation of DNA-wrapped carbon nanotubes (SWNTs-DNA; see picture, IL = ionic liquid). The toughness, modulus, and swellability of the electrically conductive sponges can be tuned by controlling the density and strength of interfiber junctions. The sponges have compliances similar to the softest natural tissue, while robust interfiber junctions give high toughness.

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