Simple Method to Produce Janus Colloidal Particles in Large Quantity

A simple, generalizable, inexpensive method is demonstrated to synthesize Janus colloidal particles in large quantity. At the liquid−liquid interface of emulsified molten wax and water, untreated particles adsorb and are frozen in place when the wax solidifies. The exposed surfaces of the immobilize...

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Bibliographic Details
Published inLangmuir Vol. 22; no. 23; pp. 9495 - 9499
Main Authors Hong, Liang, Jiang, Shan, Granick, Steve
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 07.11.2006
Subjects
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Water
Colloid particle
Liquid liquid interface
Wax
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Summary:A simple, generalizable, inexpensive method is demonstrated to synthesize Janus colloidal particles in large quantity. At the liquid−liquid interface of emulsified molten wax and water, untreated particles adsorb and are frozen in place when the wax solidifies. The exposed surfaces of the immobilized particles are modified chemically. Finally, wax is dissolved, and the inner surfaces are modified chemically. Gram-sized quantities or more of Janus particles can be synthesized by taking this approach.
Bibliography:ark:/67375/TPS-TS9VH8Q3-2
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ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0743-7463
1520-5827
DOI:10.1021/la062716z