Solvent-induced assembly of mono- and divalent silica nanoparticles

  1. Bin Liu,
  2. Etienne DuguetORCID Logo and
  3. Serge RavaineORCID Logo

Submitting author affiliation: University of Bordeaux, Bordeaux, France

Beilstein Arch. 2022, 202260. https://doi.org/10.3762/bxiv.2022.60.v1

Published 08 Jul 2022

  • Preprint

Abstract

Particles with attractive patches are appealing candidates for use as building units in the objective of fabricating novel colloidal architectures by self-assembly. Here, we report the multi-step synthesis of one-patch silica nanoparticles with a well-controlled patch-to-particle size ratio. Their assembly can be triggered by reducing the solvent quality for the polystyrene chains which serve as a patch. Dimers or trimers can be obtained by tuning the patch-to-particle size ratio. When mixed with two-patch nanoparticles, the one-patch nanoparticles control the length of the resulting chains, by behaving as colloidal chain stoppers. The present strategy allows the future elaboration of novel colloidal structures by controlled assembly of nanoparticles.

Keywords: Patchy nanoparticles; assembly; patch-to-particle size ratio; chain stopper

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When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Liu, B.; Duguet, E.; Ravaine, S. Beilstein Arch. 2022, 202260. doi:10.3762/bxiv.2022.60.v1

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© 2022 Liu et al.; licensee Beilstein-Institut.
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