Depletion-Induced Tunable Assembly of Complementary Platonic Solids

• DOI: 10.1021/acs.nanolett.4c04923
• Publication Date: 2024-12-13T04:14:15Z
• Authors: Rahul Nag; Nina Rouvière; Jaime Gabriel Trazo; Jules Marcone; Nika Kutalia; Claire Goldmann; Marianne Impéror-...; Damien Alloyeau; Doru Constantin; Cyrille Hamon

Multicomponent self-assembly has been explored to create novel metamaterials from nanoparticles of different sizes and compositions, but the assembly with complementary shapes remains rare.Recent binary assemblies were mediated by DNA base pairing or induced solvent evaporation.Here, we introduce depletion-induced (DISA) as a approach for constructing tunable lattices.In situ structural analysis in real reciprocal spaces demonstrates DISA mixture octahedra tetrahedra into extended supercrystals Fm3 m symmetry.The inter-particle distance, adjustable depletant concentration, offers versatile method assembling ordered structures while they remain dispersed liquid phase.We show that can control packing fraction such between φ=0.37 φ=0.66, much lower than dense dry state.These findings highlight DISA's potential creating complex highly tailored properties.