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Inner Rotation of Pickering Janus Emulsions

Janus droplets were prepared by vortex mixing of three non-mixable liquids, i.e., olive oil, silicone oil and water, in the presence of gold nanoparticles (AuNPs) in the aqueous phase and magnetite nanoparticles (MNPs) in the olive oil. The resulting Pickering emulsions were stabilized by a red-colo...

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Autores principales: Raju, Rajarshi Roy, Koetz, Joachim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708173/
https://www.ncbi.nlm.nih.gov/pubmed/34947662
http://dx.doi.org/10.3390/nano11123312
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author Raju, Rajarshi Roy
Koetz, Joachim
author_facet Raju, Rajarshi Roy
Koetz, Joachim
author_sort Raju, Rajarshi Roy
collection PubMed
description Janus droplets were prepared by vortex mixing of three non-mixable liquids, i.e., olive oil, silicone oil and water, in the presence of gold nanoparticles (AuNPs) in the aqueous phase and magnetite nanoparticles (MNPs) in the olive oil. The resulting Pickering emulsions were stabilized by a red-colored AuNP layer at the olive oil/water interface and MNPs at the oil/oil interface. The core–shell droplets can be stimulated by an external magnetic field. Surprisingly, an inner rotation of the silicon droplet is observed when MNPs are fixed at the inner silicon droplet interface. This is the first example of a controlled movement of the inner parts of complex double emulsions by magnetic manipulation via interfacially confined magnetic nanoparticles.
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spelling pubmed-87081732021-12-25 Inner Rotation of Pickering Janus Emulsions Raju, Rajarshi Roy Koetz, Joachim Nanomaterials (Basel) Communication Janus droplets were prepared by vortex mixing of three non-mixable liquids, i.e., olive oil, silicone oil and water, in the presence of gold nanoparticles (AuNPs) in the aqueous phase and magnetite nanoparticles (MNPs) in the olive oil. The resulting Pickering emulsions were stabilized by a red-colored AuNP layer at the olive oil/water interface and MNPs at the oil/oil interface. The core–shell droplets can be stimulated by an external magnetic field. Surprisingly, an inner rotation of the silicon droplet is observed when MNPs are fixed at the inner silicon droplet interface. This is the first example of a controlled movement of the inner parts of complex double emulsions by magnetic manipulation via interfacially confined magnetic nanoparticles. MDPI 2021-12-06 /pmc/articles/PMC8708173/ /pubmed/34947662 http://dx.doi.org/10.3390/nano11123312 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Raju, Rajarshi Roy
Koetz, Joachim
Inner Rotation of Pickering Janus Emulsions
title Inner Rotation of Pickering Janus Emulsions
title_full Inner Rotation of Pickering Janus Emulsions
title_fullStr Inner Rotation of Pickering Janus Emulsions
title_full_unstemmed Inner Rotation of Pickering Janus Emulsions
title_short Inner Rotation of Pickering Janus Emulsions
title_sort inner rotation of pickering janus emulsions
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708173/
https://www.ncbi.nlm.nih.gov/pubmed/34947662
http://dx.doi.org/10.3390/nano11123312
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