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Magnetite nanoparticles program the assembly, response, and reconfiguration of structured emulsions

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Abstract

Endoskeletal droplets—non-spherical emulsion droplets that respond to external stimuli with shape change—are modified with ferromagnetic iron oxide nanoparticles to make them susceptible to magnetic fields. The resulting droplets can be manipulated using static or oscillating magnetic fields, each producing a different response. Static fields control the orientation and position of the droplets, important in driving assembly into organized structures. Oscillating fields are shown to cause magnetic hyperthermia in ferrofluid nanoparticles, leading to droplet heating and forcing droplet reconfiguration. We demonstrate the use of static and dynamic fields to affect the organization and stability of endoskeletal droplets and their assemblies, producing highly-tunable programmable colloids that adapt to changing environmental conditions.

Graphical abstract: Magnetite nanoparticles program the assembly, response, and reconfiguration of structured emulsions

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Publication details

The article was received on 20 Sep 2018, accepted on 14 Nov 2018 and first published on 15 Nov 2018


Article type: Paper
DOI: 10.1039/C8SM01931B
Citation: Soft Matter, 2019, Advance Article
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    Magnetite nanoparticles program the assembly, response, and reconfiguration of structured emulsions

    T. A. Prileszky and E. M. Furst, Soft Matter, 2019, Advance Article , DOI: 10.1039/C8SM01931B

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