Co-reporter:Weiming Li, Gaoshan Huang, Hai Yan, Jiao Wang, Ying Yu, Xinhua Hu, Xiaojing Wu and Yongfeng Mei
Soft Matter 2012 vol. 8(Issue 27) pp:7103-7107
Publication Date(Web):08 Jun 2012
DOI:10.1039/C2SM25366F
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.