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Bulk synthesis of silver-head colloidal rodlike micromotors

Abstract

Colloidal particles with asymmetric catalytic activities are emerging micro/nanomotors that harvest chemical energy for propulsion in fluids. It is of general interest to produce such particles with high performance, in large quantity and at low cost. In this paper, we present a facile bulk method to synthesize silver-head colloidal silica rods. These particles self-propel towards their active sites by reacting with hydrogen peroxide, and the velocity is tuned via the fuel concentration. We show that these motors are highly efficient: compared to the currently available chemical-phoretic micro/nanomotors they show similar performance of self-propulsion at fuel concentrations that are two orders of magnitude smaller.

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Publication details

The article was received on 23 Apr 2018, accepted on 10 Jul 2018 and first published on 11 Jul 2018


Article type: Paper
DOI: 10.1039/C8SM00832A
Citation: Soft Matter, 2018, Accepted Manuscript
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    Bulk synthesis of silver-head colloidal rodlike micromotors

    Y. Gao, R. P. A. Dullens and D. G. A. L. Aarts, Soft Matter, 2018, Accepted Manuscript , DOI: 10.1039/C8SM00832A

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