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The Peculiar Response of DNA Hydrogel Fibers to a Salt and pH Stimulus
Author(s) -
Lee Sun Hee,
Lee Chang Kee,
Shin Su Ryon,
Kim Sun I.,
So Insuk,
Kim Seon Jeong
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800677
Subject(s) - self healing hydrogels , dna , salt (chemistry) , materials science , chemistry , chemical engineering , biophysics , polymer chemistry , biochemistry , biology , organic chemistry , engineering
DNA hydrogels which are composed of an entangled network without a crosslinker are synthesized and examined in regards to their sensitivity to salt and pH changes. The DNA hydrogel fibers only exhibited a marked response – that is a fast and large change in length – under biological conditions ([Na + ] = 0.15 M at pH = 7) and are therefore suitable materials for bio‐inspired devices.