Tough supersoft sponge fibers with tunable stiffness from a DNA self-assembly technique

Authors

Chang Lee, Hanyang University
Su Ryon Shin, Hanyang University
Ji Mun, Korea University
Sung-Sik Han, Korea University
Insuk Sog Kim, Seoul National University,
Ju-Hong Jeon, Seoul National University,
Tong Kang, Sungkyunkwan University
Sun I. Kim, Hanyang University
Philip Whitten, University of Wollongong
Gordon G. Wallace, University of WollongongFollow
Geoffrey Spinks, University of WollongongFollow

RIS ID

29924

Publication Details

Lee, C. K., Shin, S., Mun, J. Young., Han, S., So, I., Jeon, J., Kang, T. Mook., Kim, S., Whitten, P. G., Wallace, G. G., Spinks, G. Maxwell. & Kim, S. (2009). Tough supersoft sponge fibers with tunable stiffness from a DNA self-assembly technique. Angewandte Chemie (International Edition), 121 (28), 5218-5222.

Abstract

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.

Grant Number

ARC/FF0669110

Additional Grant Number

http://purl.org/au-research/grants/ARC/FF0669110