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Issue 97, 2020
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Highly efficient chemically-driven micromotors with controlled snowman-like morphology

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Abstract

We report the synthesis of silver-based Janus micromotors that self-propel at 3.5 μm s−1 and speed up to 45 μm s−1 in 0.044 and 1.5 mM of H2O2, respectively, via ionic diffusiophoresis. Morphology optimization further accelerates the speed to 90 μm s−1, which leads to a force of 1 pN and a power of 0.1 fW, similar to biomolecular motors. Their efficiency reaches 10−5, at least two orders of magnitude higher than other chemically-driven micromotors. These micromotors hold great promises in various applications.

Graphical abstract: Highly efficient chemically-driven micromotors with controlled snowman-like morphology

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Article information


Submitted
12 Oct 2020
Accepted
12 Nov 2020
First published
12 Nov 2020

Chem. Commun., 2020,56, 15301-15304
Article type
Communication

Highly efficient chemically-driven micromotors with controlled snowman-like morphology

Z. H. Shah, S. Wang, L. Xian, X. Zhou, Y. Chen, G. Lin and Y. Gao, Chem. Commun., 2020, 56, 15301
DOI: 10.1039/D0CC06812H

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