PubAg

Main content area

Self-assembly of isotropic colloids into colloidal strings, Bernal spiral-like, and tubular clusters

Author:
Guo, Yong, van Ravensteijn, Bas G. P., Kegel, Willem K.
Source:
Chemical communications 2020 v.56 no.46 pp. 6309-6312
ISSN:
1364-548X
Subject:
centrifugation, chemical compounds, chemical reactions, colloids, electrostatic interactions, hydrophobicity, isotropy
Abstract:
We report the (spontaneous) formation of colloidal strings, Bernal spiral-like, and tubular clusters comprising spherical, isotropically functionalized colloidal particles in an aqueous environment. The formation of colloidal strings and Bernal spiral-like clusters is guided by an interplay between short-ranged hydrophobic attraction and relatively longer-ranged electrostatic repulsion acting between the colloids. When a dispersion of these colloids is densified via centrifugation, well-defined tubular aggregates were observed.
Agid:
6982277