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)
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Abstract
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 |
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Status: | Published |
Refereed: | Yes |
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: | 0743-7463 |
ISSN (Online): | 1520-5827 |
Published Online: | 13 May 2006 |
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