期刊
LANGMUIR
卷 26, 期 20, 页码 15945-15947出版社
AMER CHEMICAL SOC
DOI: 10.1021/la102882j
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资金
- Forschungsschule Forschung mit Synchrotronstrahlung in den Nano- und Biowissenschaften
The formation of a layer of hydrophobic magnetite (Fe3O4) nanoparticles stabilized by lauric acid is analyzed by in situ X-ray reflectivity measurements. The data analysis shows that the nanoparticles partially disperse their hydrophobic coating. Consequently, a Langmuir layer was formed by lauric acid molecules that can be compressed into an untilted condensed phase. A majority of the nanoparticles are attached to the Langmuir film integrating lauric acid residue on their surface into the Langmuir film. Hence, the particles at the liquid-gas interface can be identified as so-called Janus beads, which are amphiphilic solids having two sides with different functionality.
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