4.8 Article

Catalytic Microstrider at the Air-Liquid Interface

Journal

ADVANCED MATERIALS
Volume 22, Issue 39, Pages 4340-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201001468

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Funding

  1. Volkswagen Foundation [I/84 072]
  2. Visiting Scholar Foundation of Key Lab. of Opto-electronic Technology and Systems In Chongqing University

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Rolled-up microtubes work as catalytic striders at the air-liquid interface of hydrogen peroxide solution (sketched in the left image). Such micromachines, buoyed by oxygen bubbles, self-propel at the fuel surface by the bubble recoiling mechanism and dynamically self-assemble into patterns (right image) due to the meniscus-climbing effect.

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