| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dinelli, Franco
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Topics
Publications (10/10 displayed)
- 2024Magnetic Behaviour of Iron Oxide/Dextran Nanoparticles in a Keratin Matrix
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- 2017Subsurface imaging of two-dimensional materials at the nanoscalecitations
- 2015Nanoscale rippling on polymer surfaces induced by AFM manipulationcitations
- 2015Surface rippling induced by periodic instabilities on a polymer surfacecitations
- 2015Nanometre scale 3D nanomechanical imaging of semiconductor structures from few nm to sub-micrometre depthscitations
- 2015Nanometre scale 3D nanomechanical imaging of semiconductor structures from few nm to sub-micrometre depthscitations
- 2014How Deep Ultrasonic and Heterodyne Force Microscopies Can Look at the Nanostructure of 2D Materials?
- 2005Correlation Between Morphology and Field-Effect-Transistor Mobility in Tetracene Thin Filmscitations
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article
Magnetic Behaviour of Iron Oxide/Dextran Nanoparticles in a Keratin Matrix
Abstract
Featured Application Development of a method to characterize size distributions of magnetic nanoparticles and their magnetic behavior in polymeric matrices.Abstract Magnetic nanoparticles (MNPs) are interesting for their potential employment in biomedical and environmental technologies. Although they have been characterized by many techniques, there are some issues that need to be solved. For instance, it is not yet possible to finely characterize their size distribution or to detect their local magnetic properties. In this work, commercial MNPs were employed, which were made of iron oxide cores with a mean diameter of 8 nm embedded in a matrix of dextran to form skeins with a mean diameter of 20 nm. These MNPs have been dispersed in keratin, a natural protein extracted from wool. Thin films have been realized by spin coating water solutions with various MNP concentrations. Analysis was conducted using a set of techniques, namely Atomic Force Microscopy, Environmental Scanning Electron Microscopy, a Physical Property Measurement System-Vibrating Sample Magnetometer, and the spatially resolved Magneto-Optic Kerr Effect (NanoMOKE). These MNPs show superparamagnetic properties, although a wide distribution of blocking temperature values indicates that the cores are not isolated and interact with others. NanoMOKE not only allows us to map the magnetic behavior of MNP clusters, but also to detect the presence of isolated MNPs dispersed in the keratin matrix.