| 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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Petrov, Alexander
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024On the applicability of the Maxwell Garnett effective medium model to media with a high density of cylindrical porescitations
- 2024Demystifying the semiconductor-to-metal transition in amorphous Vanadium pentoxide: the role of substrate/thin film interfaces
- 2023Chemical interface damping by electrochemical oxidation of gold
- 2022Nanoporous gold as an active plasmonic metamaterial
- 2021Evidence of robust half-metallicity in strained manganite filmscitations
- 2021Omnidirectional Photonic Bandgap in Two-dimensional Photonic Quasicrystal Made of Near-Transparent Dielectric Material
- 2019Electrophysical properties of Sr2FeMoO6–δ ceramics with dielectric shellscitations
- 2019Advancing the fabrication of YSZ-inverse photonic glasses for broadband omnidirectional reflector films
- 2018Synthesis and functionalization of rod-like iron oxide nanoparticles
- 2018Synthesis and functionalization of rod-like iron oxide nanoparticles
- 2018Colloidal Stability of Aqueous Suspensions of Polymer-Coated Iron Oxide Nanorods: Implications for Biomedical Applicationscitations
- 2018Photonic glass for high contrast structural color
- 2018Photonic glass for high contrast structural color
- 2015Yttria-stabilized zirconia microspheres: Novel building blocks for high-temperature photonics
- 2014Modification of a Teng-Man technique to measure both r33 and r13 electro-optic coefficientscitations
- 2014Electrical and electro-optic characterization of nonlinear polymer thin films on silicon substrate
- 2013Fabrication of high Q-cavities with functional polymer cladding
- 2013Configurable silicon photonic crystal waveguidescitations
- 2012Four wave mixing in silicon hybrid and silicon heterogeneous micro photonic structurescitations
- 2009Electro-optical modulator in a polymer-infiltrated silicon slotted photonic crystal waveguide heterostructure resonator
Places of action
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document
Synthesis and functionalization of rod-like iron oxide nanoparticles
Abstract
Magnetic iron oxide nanoparticles have been recognized for use in various promising biomedical applications, such as detection of biological molecules, contrast agents in magnetic resonance imaging (MRI), vectors in drug delivery and mediators to convert electromagnetic energy to heat (hyperthermia). We reproduce a simple two-step reaction strategy for the synthesis of uniform magnetic iron oxide nanorods with ~50 nm in length and ~5 nm in diameter (Figure 1) and their colloidal stabilization with three different polymers (bisphosphonate polyoxyethylene-Optima 100, polymethacrylate polyoxyethylene-PCP45 and polyacrylic acid sodium salt-PAA) in water. Two-step reaction consists on synthesis of akaganeite followed by its transformation by reduction using hydrazine in microwave to obtain magnetic iron oxide nanorods [1]. The nanorods present the saturation magnetization value of 64 kA/m and residual magnetization of 15 kA/m, thus this material has ferro-or ferrimagnetic behavior. To estimate the iron oxide composition we use the technique of Mössbauer spectroscopy and a mixture of maghemite (strongly magnetic phase) with a quasi-amorphous intermediate phase (weakly magnetic phase) was detected, explaining a relatively low magnetization saturation. The suspensions of MNPs were probed by dynamic light scattering (DLS) and the distribution curve provides the Z-average hydrodynamic diameter equal 70±5 nm for Optima 100, 82±8 nm for PCP45 and 99±8 nm for PAA. We also study the effect of the polymer concentration and of the solution pH on the suspension stability.