4.8 Article

Light-Driven Titanium-Dioxide-Based Reversible Microfireworks and Micromotor/Micropump Systems

期刊

ADVANCED FUNCTIONAL MATERIALS
卷 20, 期 10, 页码 1568-1576

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201000063

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资金

  1. National Science Foundation through the Center for Nanoscale Science (NSF-MRSEC) [DMR-0820404]
  2. NSF-supported Penn State University's National Nanotechnology Network (NNIN

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Titanium dioxide (TiO2) possesses high photocatalytic activity, which can be utilized to-power the autonomous motion of microscale objects. This paper presents the first examples of TiO2 micromotors and micropumps: UV-induced TiO2 reversible microfireworks phenomenon was observed and diffusiophoresis has been proposed as a possible mechanism.

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