2022/08/21 by Camilla Beneduce, Francesco Sciortino, Beneduce, Camilla +5 · 1 citation
Chemistry · Materials Science · #FOS: Physical sciences #Material Dynamics and Properties #Pickering emulsions and particle stabilization #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #Surfactants and Colloidal Systems
paper · pdf · doi:10.48550/arxiv.2208.09856
openalex publication_date 2022/08/21 · openalex created_date 2022/08/24 · openalex updated_date 2026/07/28
The goal of inverse self-assembly is to design inter-particle interactions capable of assembling the units into a desired target structure. The effective assembly of complex structures often requires the use of multiple components, each new component increasing the thermodynamic degrees of freedom and hence the complexity of the self-assembly pathway. In this work we explore the possibility to use azeotropy, i.e. a special thermodynamic condition where the system behaves effectively as a one-component system, as a way to control the self-assembly of an arbitrarily number of components. Exploiting the mass-balance equations we show how to select patchy particle systems that exhibit azeotropic points along the desired self-assembly pathway. As an example we map the phase diagram of a binary mixture that, by design, fully assembles into cubic (and only cubic) diamond crystal via an azeotropic point. The ability to explicitly include azeotropic points into artificial designs opens novel pathways to the self-assembly of complex structures.