Geometrically designing the kinematic behavior of catalytic nanomotors

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

doi:10.1021/nl201273n

Geometrically designing the kinematic behavior of catalytic nanomotors

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

Research output: Contribution to journal › Article › peer-review

72 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 language	English (US)
Pages (from-to)	2543-2550
Number of pages	8
Journal	Nano Letters
Volume	11
Issue number	6
DOIs	https://doi.org/10.1021/nl201273n
State	Published - Jun 8 2011
Externally published	Yes

Keywords

Nanomotors
glancing angle deposition
oblique angle deposition
regularized Stokeslet

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl201273n

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AU - Kothari, S.

AU - Saintillan, D.

AU - Zhao, Y. P.

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AB - 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.

KW - Nanomotors

KW - glancing angle deposition

KW - oblique angle deposition

KW - regularized Stokeslet

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Geometrically designing the kinematic behavior of catalytic nanomotors

Abstract

Keywords

ASJC Scopus subject areas

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