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Issue 1, 2014
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Forming self-rotating pinwheels from assemblies of oscillating polymer gels

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Abstract

Using computational modeling, we show that millimeter-sized polymer gels undergoing the self-oscillating Belousov–Zhabotinsky (BZ) reaction can spontaneously self-aggregate to form macroscopic, self-rotating pinwheels. Notably, we find that the system is bistable and the formation of the pinwheels depends on initial random fluctuations. The pinwheel formation can, however, be promoted by tailoring the local concentration of the activator for the BZ reaction. Furthermore, we demonstrate approaches for controlling the chirality of the pinwheels' motion. These materials could form simple self-propelled machines, such as gears, that perform autonomous work.

Graphical abstract: Forming self-rotating pinwheels from assemblies of oscillating polymer gels

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Publication details

The article was received on 15 Aug 2013, accepted on 20 Sep 2013 and first published on 26 Sep 2013


Article type: Communication
DOI: 10.1039/C3MH00083D
Citation: Mater. Horiz., 2014,1, 125-132

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    Forming self-rotating pinwheels from assemblies of oscillating polymer gels

    D. Deb, O. Kuksenok, P. Dayal and A. C. Balazs, Mater. Horiz., 2014, 1, 125
    DOI: 10.1039/C3MH00083D

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