We demonstrate a new type of gaseous fuel for rolled-up tubular Ti/Cr microengine powered by carbon dioxide microbubbles in carbonated water and brewed beverages. Existence of microbubble pockets is revealed using on-chip integrated transparent microtubes. Vertical position, angle of rotation and buoyancy of ferromagnetic Ti/Fe/Cr microengines are controlled using an external magnetic field.
Y. Zhang, H. Zhu, W. Qiu, Y. Zhou, G. Huang, Y. Mei and A. A. Solovev, Chem. Commun., 2018, 54, 5692 DOI: 10.1039/C8CC01011K
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