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Tough Supersoft Sponge Fibers with Tunable Stiffness from a DNA Self‐Assembly Technique
Author(s) -
Lee Chang Kee,
Shin Su Ryon,
Mun Ji Young,
Han SungSik,
So Insuk,
Jeon JuHong,
Kang Tong Mook,
Kim Sun I.,
Whitten Philip G,
Wallace Gordon G.,
Spinks Geoffrey M.,
Kim Seon Jeong
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200804788
Subject(s) - sponge , materials science , toughness , composite material , carbon nanotube , stiffness , porosity , ionic bonding , modulus , polymer , ion , chemistry , organic chemistry , geology , paleontology
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.