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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2021
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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. |
format | Online Article Text |
id | pubmed-8708173 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT rajurajarshiroy innerrotationofpickeringjanusemulsions AT koetzjoachim innerrotationofpickeringjanusemulsions |