Published in
Royal Society of Chemistry, Soft Matter, 27(8), p. 7103
DOI: 10.1039/c2sm25366f
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Fabrication and stimuli-responsive behavior of flexible micro-scrolls
Journal article published in 2012 by
Weiming Li,
Gaoshan Huang,
Hai Yan,
Jiao Wang,
Ying Yu,
Xinhua Hu,
Xiaojing Wu,
Yongfeng Mei 
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Abstract
We have fabricated micro-scrolls (tubes/springs) by rolling up pre-strained metal/PVA–PAA bilayers, where the strain is caused by the swelling of the PVA–PAA hydrogel in aqueous media. Stimuli-responsive behavior of the micro-tubes/springs is demonstrated by rolling and unrolling caused by the volume change of the PVA–PAA hydrogel in response to environmental fluids.