Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 22nd May 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 84, 2018
Previous Article Next Article

Chemical micromotors self-assemble and self-propel by spontaneous symmetry breaking

Author affiliations

Abstract

Self-propelling chemical motors have thus far required the fabrication of Janus particles with an asymmetric catalyst distribution. Here, we demonstrate that simple, isotropic colloids can spontaneously assemble to yield dimer motors that self-propel. In a mixture of isotropic titanium dioxide colloids with photo-chemical catalytic activity and passive silica colloids, light illumination causes diffusiophoretic attractions between the active and passive particles and leads to the formation of dimers. The dimers constitute a symmetry-broken motor, whose dynamics can be fully controlled by the illumination conditions. Computer simulations reproduce the dynamics of the colloids and are in good agreement with experiments. The current work presents a simple route to obtain large numbers of self-propelling chemical motors from a dispersion of spherically symmetric colloids through spontaneous symmetry breaking.

Graphical abstract: Chemical micromotors self-assemble and self-propel by spontaneous symmetry breaking

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Aug 2018, accepted on 27 Sep 2018 and first published on 28 Sep 2018


Article type: Communication
DOI: 10.1039/C8CC06467A
Chem. Commun., 2018,54, 11933-11936
  • Open access: Creative Commons BY license
  •   Request permissions

    Chemical micromotors self-assemble and self-propel by spontaneous symmetry breaking

    T. Yu, P. Chuphal, S. Thakur, S. Y. Reigh, D. P. Singh and P. Fischer, Chem. Commun., 2018, 54, 11933
    DOI: 10.1039/C8CC06467A

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements