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Issue 1, 2014
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Chemotaxis of catalytic silica–manganese oxide “matchstick” particles

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Abstract

Particles that can undergo directed self-propulsion are desirable for colloidal cargo delivery and self-assembly. Herein we describe the synthesis of silica–manganese oxide “matchstick” colloids that undergo catalytic self-propulsion by consumption of hydrogen peroxide. Chemotaxis is observed when particles are placed in a fuel gradient. Movement opposes convective flow which is tracked by following inert polymer microspheres simultaneously.

Graphical abstract: Chemotaxis of catalytic silica–manganese oxide “matchstick” particles

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Article information


Submitted
02 Apr 2013
Accepted
01 May 2013
First published
03 Sep 2013

Mater. Horiz., 2014,1, 65-68
Article type
Communication

Chemotaxis of catalytic silica–manganese oxide “matchstick” particles

A. R. Morgan, A. B. Dawson, H. S. Mckenzie, T. S. Skelhon, R. Beanland, H. P. W. Franks and S. A. F. Bon, Mater. Horiz., 2014, 1, 65
DOI: 10.1039/C3MH00003F

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