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Issue 4, 2013
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Small-scale heat detection using catalytic microengines irradiated by laser

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Abstract

We demonstrate a novel approach to modulating the motion speed of catalytic microtubular engines via laser irradiation/heating with regard to small-scale heat detection. Laser irradiation on the engines leads to a thermal heating effect and thus enhances the engine speed. During a laser on/off period, the motion behaviour of a microengine can be repeatable and reversible, demonstrating a regulation of motion speeds triggered by laser illumination. Also, the engine velocity exhibits a linear dependence on laser power in various fuel concentrations, which implies an application potential as local heat sensors. Our work may hold great promise in applications such as lab on a chip, micro/nano factories, and environmental detection.

Graphical abstract: Small-scale heat detection using catalytic microengines irradiated by laser

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Article information


Submitted
29 Aug 2012
Accepted
26 Nov 2012
First published
03 Dec 2012

Nanoscale, 2013,5, 1345-1352
Article type
Paper

Small-scale heat detection using catalytic microengines irradiated by laser

Z. Liu, J. Li, J. Wang, G. Huang, R. Liu and Y. Mei, Nanoscale, 2013, 5, 1345
DOI: 10.1039/C2NR32494F

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