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

Gao, Wei ; Sattayasamitsathit, Sirilak ; Orozco, Jahir ; Wang, Joseph
  • Publisher: Figshare
  • Related identifiers: doi: 10.1021/ja203773g.s002
  • Subject: Biophysics | Biochemistry | Pharmacology | Evolutionary Biology | Ecology | Immunology | Inorganic Chemistry | Space Science | microtubular engines | polycarbonate template membrane | 350 body lengths | hydrogen peroxide fuel | 8 μ m | Efficient Catalytic Microengines
    • FOR: 39999 Chemical Sciences not elsewhere classified | 29999 Physical Sciences not elsewhere classified

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<sup>–1</sup>), 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.
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