Cu@TiO2 Janus microswimmers with a versatile motion mechanism

LinLin Wang; Mihail N. Popescu; Fernando Stavale; Astrid Ali; Thomas Gemming; Juliane Simmchen

doi:10.1039/C8SM00808F

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Cu@TiO₂ Janus microswimmers with a versatile motion mechanism†

LinLin Wang,^a Mihail N. Popescu,^b Fernando Stavale,^c Astrid Ali,^c Thomas Gemming

^d and Juliane Simmchen

*^a

Author affiliations

* Corresponding authors

^a Physical Chemistry TU Dresden, Zellescher Weg 19, 01062 Dresden, Germany
E-mail: juliane.simmchen@tu-dresden.de

^b MPI for Intelligent Systems, Heisenbergstr 3, 70199 Stuttgart, Germany

^c CBPF, Rua Dr Xavier Sigaud, 150 - Urca Rio de Janeiro, Brazil

^d IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany

Abstract

We report novel metal-capped TiO₂ photochemically-active colloids endowed with a ‘hybrid drive’: directional motion is achieved in water upon UV illumination, as well as in dilute peroxide solutions upon illumination with UV or visible light. From the different behaviours of nearby particles, we infer that distinct reaction pathways affect the local composition and flow of the solution.

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Article information

DOI: https://doi.org/10.1039/C8SM00808F
Article type: Communication
Submitted: 19 Apr 2018
Accepted: 17 Jul 2018
First published: 27 Jul 2018

Download Citation

Soft Matter, 2018,14, 6969-6973

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Cu@TiO₂ Janus microswimmers with a versatile motion mechanism

L. Wang, M. N. Popescu, F. Stavale, A. Ali, T. Gemming and J. Simmchen, Soft Matter, 2018, 14, 6969 DOI: 10.1039/C8SM00808F

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