4.7 Article

Hydrogel Walkers with Electro-Driven Motility for Cargo Transport

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SCIENTIFIC REPORTS
卷 5, 期 -, 页码 -

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NATURE PUBLISHING GROUP
DOI: 10.1038/srep13622

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  1. National Natural Science Foundation of China [21136006]
  2. State Key Laboratory of Polymer Materials Engineering [sklpme2014-1-01]

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In this study, soft hydrogel walkers with electro-driven motility for cargo transport have been developed via a facile mould-assisted strategy. The hydrogel walkers consisting of polyanionic poly(2-acrylamido-2-methylpropanesulfonic acid-co-acrylamide) exhibit an arc looper-like shape with two legs for walking. The hydrogel walkers can reversibly bend and stretch via repeated on/off electro-triggers in electrolyte solution. Based on such bending/stretching behaviors, the hydrogel walkers can move their two legs to achieve one-directional walking motion on a rough surface via repeated on/off electro-triggering cycles. Moreover, the hydrogel walkers loaded with very heavy cargo also exhibit excellent walking motion for cargo transport. Such hydrogel systems create new opportunities for developing electro-controlled soft systems with simple design/fabrication strategies in the soft robotic field for remote manipulation and transportation.

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