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Issue 35, 2018
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Multi-stage hydrogel rockets with stage dropping-off by thermal/light stimulation

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Abstract

The emerging micromotors have shown great potential as delivery vehicles due to their promising transport capacity and ability to dynamically respond to the environment. We report here a multi-stage hydrogel rocket with precise control of the step-by-step detachment of the hydrogel stage and tunable cargo release ability. The hydrogel rocket, constructed from driving hydrogel blocks alternating with sacrificial hydrogel blocks, could propel itself fast driven by the Marangoni effect and drops off self-propelled small rockets by thermal/light stimulation. Furthermore, the tunable release of the payload in the hydrogel rocket was demonstrated. This multi-stage hydrogel rocket may provide new insight into the design of micromotors with on-demand cargo transport and delivery capabilities.

Graphical abstract: Multi-stage hydrogel rockets with stage dropping-off by thermal/light stimulation

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Article information


Submitted
12 Jul 2018
Accepted
14 Aug 2018
First published
15 Aug 2018

J. Mater. Chem. A, 2018,6, 16838-16843
Article type
Communication

Multi-stage hydrogel rockets with stage dropping-off by thermal/light stimulation

Y. Liang, Y. Xu, W. Ye, D. Yao, Y. Chen and C. Wang, J. Mater. Chem. A, 2018, 6, 16838
DOI: 10.1039/C8TA06715E

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