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Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields
The impact of in-plane and perpendicular magnetic fields on the spatial arrangement of superparamagnetic nanospheres is explored. We utilize nanosphere self-organization methods like Spin Coating and Drop-Casting in the presence of magnetic fields. In this way, the additional parameter of the long r...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073079/ https://www.ncbi.nlm.nih.gov/pubmed/33920676 http://dx.doi.org/10.3390/nano11041030 |
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author | Mourkas, Angelos Zarlaha, Angeliki Kourkoumelis, Nikolaos Panagiotopoulos, Ioannis |
author_facet | Mourkas, Angelos Zarlaha, Angeliki Kourkoumelis, Nikolaos Panagiotopoulos, Ioannis |
author_sort | Mourkas, Angelos |
collection | PubMed |
description | The impact of in-plane and perpendicular magnetic fields on the spatial arrangement of superparamagnetic nanospheres is explored. We utilize nanosphere self-organization methods like Spin Coating and Drop-Casting in the presence of magnetic fields. In this way, the additional parameter of the long range magnetic dipolar interactions is introduced to the competing nanosphere–surface and nanosphere–nanosphere interactions, which control order and agglomeration. We present a comparative analysis of the self-assembly characteristics with respect to the different methods and the effect of the applied field in different directions. Under zero field perfect hexagonal arrays can be obtained by spin coating. Parallel applied fields tend to create directional patterns, while perpendicular favor 3D-accumulation. |
format | Online Article Text |
id | pubmed-8073079 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80730792021-04-27 Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields Mourkas, Angelos Zarlaha, Angeliki Kourkoumelis, Nikolaos Panagiotopoulos, Ioannis Nanomaterials (Basel) Article The impact of in-plane and perpendicular magnetic fields on the spatial arrangement of superparamagnetic nanospheres is explored. We utilize nanosphere self-organization methods like Spin Coating and Drop-Casting in the presence of magnetic fields. In this way, the additional parameter of the long range magnetic dipolar interactions is introduced to the competing nanosphere–surface and nanosphere–nanosphere interactions, which control order and agglomeration. We present a comparative analysis of the self-assembly characteristics with respect to the different methods and the effect of the applied field in different directions. Under zero field perfect hexagonal arrays can be obtained by spin coating. Parallel applied fields tend to create directional patterns, while perpendicular favor 3D-accumulation. MDPI 2021-04-17 /pmc/articles/PMC8073079/ /pubmed/33920676 http://dx.doi.org/10.3390/nano11041030 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 | Article Mourkas, Angelos Zarlaha, Angeliki Kourkoumelis, Nikolaos Panagiotopoulos, Ioannis Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title | Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title_full | Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title_fullStr | Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title_full_unstemmed | Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title_short | Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields |
title_sort | self-assembly magnetic micro- and nanospheres and the effect of applied magnetic fields |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073079/ https://www.ncbi.nlm.nih.gov/pubmed/33920676 http://dx.doi.org/10.3390/nano11041030 |
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