A class of microstructured particles through colloidal crystallization

Orlin D. Velev, Abraham M. Lenhoff, Eric W. Kaler

Research output: Contribution to journalArticlepeer-review

448 Scopus citations

Abstract

Microstructured particles were synthesized by growing colloidal crystals in aqueous droplets suspended on fluorinated oil. The droplets template highly ordered and smooth particle assemblies, which diffract light and have remarkable structural stability. The method allows control of particle size and shape from spheres through ellipsoids to toroids by varying the droplet composition. Cocrystallization in colloidal mixtures yields anisotropic particles of organic and inorganic materials that can, for example, be oriented and turned over by magnetic fields. The results open the way to controllable formation of a wide variety of microstructures.

Original languageEnglish (US)
Pages (from-to)2240-2243
Number of pages4
JournalScience
Volume287
Issue number5461
DOIs
StatePublished - Mar 24 2000

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