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...

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Main Authors:	Angelos Mourkas, Angeliki Zarlaha, Nikolaos Kourkoumelis, Ioannis Panagiotopoulos
Format:	Article
Language:	English
Published:	MDPI AG 2021-04-01
Series:	Nanomaterials
Subjects:	magnetism self-assembly nanospheres
Online Access:	https://www.mdpi.com/2079-4991/11/4/1030

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spelling	doaj-a57dbeea4f2d401eac02812365e876c92021-04-17T23:02:43ZengMDPI AGNanomaterials2079-49912021-04-01111030103010.3390/nano11041030Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic FieldsAngelos Mourkas0Angeliki Zarlaha1Nikolaos Kourkoumelis2Ioannis Panagiotopoulos3Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceMedical Physics Laboratory, Medical School, University of Ioannina, 45110 Ioannina, GreeceDepartment of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceThe 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.https://www.mdpi.com/2079-4991/11/4/1030magnetismself-assemblynanospheres
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Angelos Mourkas Angeliki Zarlaha Nikolaos Kourkoumelis Ioannis Panagiotopoulos
spellingShingle	Angelos Mourkas Angeliki Zarlaha Nikolaos Kourkoumelis Ioannis Panagiotopoulos Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields Nanomaterials magnetism self-assembly nanospheres
author_facet	Angelos Mourkas Angeliki Zarlaha Nikolaos Kourkoumelis Ioannis Panagiotopoulos
author_sort	Angelos Mourkas
title	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_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_sort	self-assembly magnetic micro- and nanospheres and the effect of applied magnetic fields
publisher	MDPI AG
series	Nanomaterials
issn	2079-4991
publishDate	2021-04-01
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.
topic	magnetism self-assembly nanospheres
url	https://www.mdpi.com/2079-4991/11/4/1030
work_keys_str_mv	AT angelosmourkas selfassemblymagneticmicroandnanospheresandtheeffectofappliedmagneticfields AT angelikizarlaha selfassemblymagneticmicroandnanospheresandtheeffectofappliedmagneticfields AT nikolaoskourkoumelis selfassemblymagneticmicroandnanospheresandtheeffectofappliedmagneticfields AT ioannispanagiotopoulos selfassemblymagneticmicroandnanospheresandtheeffectofappliedmagneticfields
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Self-Assembly Magnetic Micro- and Nanospheres and the Effect of Applied Magnetic Fields

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