Journal
LANGMUIR
Volume 21, Issue 6, Pages 2158-2162Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la047691n
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We prepare solid-stabilized emulsions using paramagnetic particles at an oil/water interface that can undergo macroscopic phase separation upon application of an external magnetic field. A critical field strength is found for which emulsion droplets begin to translate into the continuous-phase fluid. At higher fields, the emulsions destabilize, leading to a fully phase-separated system. This effect is reversible, and long-term stability can be recovered by remixing the components with mechanical agitation.
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