Fig. 8.

The construction of Janus particles by surface nucleation and seeded growth method. (A) The synthesis illustration of Au&PMO Janus, Au@PMO yolk-shell, and Au@PMO/mSiO₂ yolk-double shell nanostructures. Reproduced with permission from Ref. [108]. Copyright 2016, Royal Society of Chemistry. (B) TEM images of single nanoparticle obtained at different reaction times and schematic illustration of the formation of rod-like Janus AuNR@PMO nanoparticles. Reproduced with permission from Ref. [109]. Copyright 2017, Royal Society of Chemistry. (C) Synthesis of UCNP@SiO₂@mSiO₂&PMO Janus mesoporous silica nanocomposites by an anisotropic island nucleation and growth method. Reproduced with permission from Ref. [47]. Copyright 2014, American Chemical Society.