Horst Adelmann
Oil Powders and Gels from Particle-Stabilized Emulsions
Adelmann, Horst; Binks, Bernard P.; Mezzenga, Raffaele
Authors
Abstract
We report on the use of silica particle-stabilized oil-in-water emulsions as a template for the preparation of oil powders and gels obtained in a single step by either slow or rapid evaporation of water using freeze-drying or spray-drying, respectively. Using olive oil and partially hydrophobic fumed silica nanoparticles, an oil powder containing nearly 90 wt % oil can be formed by spray-drying, which shows no sign of oil leakage over several months. Upon slow evaporation of water by freeze-drying, a transparent oil gel with oil content as high as 98 wt % can be formed, in which the silica particles form a space-filling network thickening the oil. Comparisons are made throughout with a typical surfactant-stabilized emulsion which does not produce oil powders or gels.
Citation
Adelmann, H., Binks, B. P., & Mezzenga, R. (2012). Oil Powders and Gels from Particle-Stabilized Emulsions. Langmuir : the ACS journal of surfaces and colloids, 28(3), 1694-1697. https://doi.org/10.1021/la204811c
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 3, 2012 |
Online Publication Date | Jan 6, 2012 |
Publication Date | Jan 24, 2012 |
Journal | LANGMUIR |
Print ISSN | 0743-7463 |
Electronic ISSN | 1520-5827 |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 28 |
Issue | 3 |
Pages | 1694-1697 |
DOI | https://doi.org/10.1021/la204811c |
Keywords | Spectroscopy; Electrochemistry; General Materials Science; Surfaces and Interfaces; Condensed Matter Physics |
Public URL | https://hull-repository.worktribe.com/output/424092 |
Publisher URL | https://pubs.acs.org/doi/10.1021/la204811c |
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