A “Building Block” Approach to Mixed-Colloid Systems Through Electrostatic Self-Organization

A facile approach to engineering diverse mixed-colloid ensembles is presented here. Various colloid architectures are seen that are controlled by both electrostatic self-assembly and concentration changes (see Figure) regardless of the nature of the nanoparticle core. The methodology should be applicable to the creation of functionally diverse materials via combinatorial chemistry (see also inside front cover).