Geometrically designing the kinematic behavior of catalytic nanomotors

J. G. Gibbs, S. Kothari, D. Saintillan, Y. P. Zhao

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Catalytic nanomotors with silica microbead heads and TiO2 arms are systematically designed by dynamic shadowing growth. The swimming trajectories are fine tuned by altering the arm length and orientation exploiting geometry-dependent hydrodynamic interactions at low Reynolds number. The curvature, angular frequency, and radius of curvature of the trajectories change as a function of arm length. Simulations based on the method of regularized Stokeslets are also described and correctly capture the trends observed in the experiments.

Original languageEnglish (US)
Pages (from-to)2543-2550
Number of pages8
JournalNano Letters
Volume11
Issue number6
DOIs
StatePublished - Jun 8 2011
Externally publishedYes

Keywords

  • glancing angle deposition
  • Nanomotors
  • oblique angle deposition
  • regularized Stokeslet

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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