Beilstein Arch. 2022, 202260. https://doi.org/10.3762/bxiv.2022.60.v1
Published 08 Jul 2022
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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Liu, B.; Duguet, E.; Ravaine, S. Beilstein Arch. 2022, 202260. doi:10.3762/bxiv.2022.60.v1
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