A design path for the hierarchical self-assembly of patchy colloidal particles
Artikel i vetenskaplig tidskrift, 2015

Patchy colloidal particles are promising candidates for building blocks in directed self-assembly. To be successful the surface patterns need to be simple enough to be synthesized, while feature-rich enough to cause the colloidal particles to self-assemble into desired structures. Achieving this is a challenge for traditional synthesis methods. Recently it has been suggested that surface patterns themselves can be made to self-assemble. In this paper we present a design path for the hierarchical targeted self-assembly of patchy colloidal particles based on self-assembling surface patterns. At the level of the surface structure, we use a predictive method utilizing the universality of stripes and spots, coupled with stoichiometric constraints, to cause highly specific and functional patterns to self-assemble on spherical surfaces. We use a minimalistic model of an alkanethiol on gold as a demonstration, showing that even with limited control over the interaction between surface constituents we can obtain patterns that cause the colloidal particles themselves to self-assemble into various complex geometric structures, such as strings, membranes, cubic aggregates and colloidosomes, as well as various crystalline patterns.

Författare

Erik Edlund

SuMo Biomaterials

Chalmers, Energi och miljö, Fysisk resursteori

Oskar Lindgren

SuMo Biomaterials

Chalmers, Energi och miljö, Fysisk resursteori

Martin Nilsson Jacobi

Chalmers, Energi och miljö, Fysisk resursteori

Soft Matter

1744-683X (ISSN) 1744-6848 (eISSN)

Vol. 11 19 3913-3919

Ämneskategorier

Fysikalisk kemi

DOI

10.1039/c5sm00596e