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Published August 10, 2011 | Supplemental Material
Journal Article Open

Highly Efficient Catalytic Microengines: Template Electrosynthesis of Polyaniline/Platinum Microtubes

Abstract

Highly efficient catalytic microtubular engines are synthesized rapidly and inexpensively using an electrochemical growth of bilayer polyaniline/platinum microtubes within the conically shaped pores of a polycarbonate template membrane. These mass-produced microtubular engines are only 8 μm long, are self-propelled at an ultrafast speed (of over 350 body lengths s^(–1)), and can operate in very low levels of the hydrogen peroxide fuel (down to 0.2%). The propulsion characteristics and optimization of these microtubular engines are described, along with their efficient operation in different biological environments which holds great promise for biomedical applications.

Additional Information

© 2011 American Chemical Society. Received 24 April 2011. Published online 13 July 2011. Published in print 10 August 2011. This work was supported by the National Science Foundation (Award No. CBET 0853375). S.S. was supported by DOE BES DE-SC0004937. J.O. acknowledges a Beatriu de Pinós postdoctoral fellowship from the Government of Catalonia. The authors thank A. Pei, A. Ponedal, and B. Chuluun for their help.

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