Unknown

Dataset Information

0

Generic, phenomenological, on-the-fly renormalized repulsion model for self-limited organization of terminal supraparticle assemblies.


ABSTRACT: Self-limited, or terminal, supraparticles have long received great interest because of their abundance in biological systems (DNA bundles and virus capsids) and their potential use in a host of applications ranging from photonics and catalysis to encapsulation for drug delivery. Moreover, soft, uniform colloidal aggregates are a promising candidate for quasicrystal and other hierarchical assemblies. In this work, we present a generic coarse-grained model that captures the formation of self-limited assemblies observed in various soft-matter systems including nanoparticles, colloids, and polyelectrolytes. Using molecular dynamics simulations, we demonstrate that the assembly process is self-limited when the repulsion between the particles is renormalized to balance their attraction during aggregation. The uniform finite-sized aggregates are further shown to be thermodynamically stable and tunable with a single dimensionless parameter. We find large aggregates self-organize internally into a core-shell morphology and exhibit anomalous uniformity when the constituent nanoparticles have a polydisperse size distribution.

SUBMITTER: Nguyen TD 

PROVIDER: S-EPMC4485121 | biostudies-other | 2015 Jun

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC9203058 | biostudies-literature
| S-EPMC2442399 | biostudies-literature
| S-EPMC4920280 | biostudies-literature
| S-EPMC3042840 | biostudies-other
| S-EPMC5430795 | biostudies-literature
| S-EPMC4643800 | biostudies-other
| S-EPMC2216037 | biostudies-literature
| S-EPMC8235013 | biostudies-literature
| S-EPMC7082995 | biostudies-literature
| S-EPMC8216317 | biostudies-literature