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Janus Particles at Liquid−Liquid Interfaces
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.
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Citations
Cited by
Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications
Walther, A., & Müller, A. H. E. (2013) · Chemical Reviews · doi:10.1021/cr300089t · Cited by 1,769
Fabrication, Assembly, and Application of Patchy Particles
Pawar, A. B., & Kretzschmar, I. (2010) · Macromolecular Rapid Communications · doi:10.1002/marc.200900614 · Cited by 567
Functionalized gold nanoparticles: Synthesis, structure and colloid stability
Zhou, J., Ralston, J., Sedev, R., & Beattie, D. A. (2009) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2008.12.002 · Cited by 417
Metadata
- Authors
- Glaser, N., Adams, D. J., Böker, A., & Krausch, G.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-05-13
- Volume
- 22
- Issue
- 12
- Pages
- 5227-5229
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W1994109545
- Cited by
- 416
- References
- 0
- FWCI
- 8.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- Glaser, N., Adams, D. J., Böker, A., & Krausch, G. (2006). Janus Particles at Liquid−Liquid Interfaces. Langmuir. https://doi.org/10.1021/la060693i
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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