Janus particles at liquid−liquid interfaces

Glaser, N., Adams, D. J. , Böker, A. and Krausch, G. (2006) Janus particles at liquid−liquid interfaces. Langmuir, 22(12), pp. 5227-5229. (doi: 10.1021/la060693i) (PMID:16732643)

Full text not currently available from Enlighten.


Following recent theoretical predictions, we report on the first experiments on the interfacial activity of so-called Janus nanoparticles (i.e., bifacial particles consisting of a gold and an iron oxide moiety). Using pendant drop tensiometry, we show that the amphiphilicity derived from the Janus character of the particles leads to a significantly higher interfacial activity compared to that of the respective homogeneous particles of the same size. The self-assembly of Janus particles at the hexane−water interface results in a significant decrease in the interfacial tension. Furthermore, we demonstrate control over the interfacial activity by tuning the particles' amphiphilicity via ligand-exchange reactions.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Adams, Dave
Authors: Glaser, N., Adams, D. J., Böker, A., and Krausch, G.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Langmuir
Publisher:American Chemical Society
ISSN (Online):1520-5827
Published Online:13 May 2006

University Staff: Request a correction | Enlighten Editors: Update this record