Light-driven titanium-dioxide-based reversible microfireworks and micromotor/micropump systems

Yiying Hong, Misael Diaz, Ubaldo M. Córdova-Fteueroa, Ayusman Sen

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Abstract

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. UVinduced TiO2 reversible microfireworks phenomenon was observed and diffusiophoresis has been proposed as a possible mechanism.

Original languageEnglish (US)
Pages (from-to)1568-1576
Number of pages9
JournalAdvanced Functional Materials
Volume20
Issue number10
DOIs
Publication statusPublished - May 25 2010

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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