Journal
ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 9
Volume 9, Issue -, Pages 283-305Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-conmatphys-031016-025514
Keywords
surface tension; anisotropic colloids; Janus particles; curvature; self-organization; packing; inclusions; electrostatics
Categories
Funding
- Direct For Mathematical & Physical Scien [1607878] Funding Source: National Science Foundation
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In directed assembly, small building blocks are assembled into an organized structure under the influence of guiding fields. Capillary interactions provide a versatile route for structure formation. Colloids adsorbed on fluid interfaces distort the interface, which creates an associated energy field. When neighboring distortions overlap, colloids interact to minimize interfacial area. Contact line pinning, particle shape, and surface chemistry play important roles in structure formation. Interface curvature acts like an external field; particles migrate and assemble in patterns dictated by curvature gradients. We review basic analysis and recent findings in this rapidly evolving literature. Understanding the roles of assembly is essential for tuning the mechanical, physical, and optical properties of the structure.
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