Results 231 to 240 of about 60,731 (265)

Phosphorylcholine Coating of Iron Oxide Nanoparticles

Journal of Colloid and Interface Science, 1999
In order to develop thin-walled superparamagnetic nanoparticle suspensions as a contrast agent for magnetic resonance imaging, phosphorylcholine PC was used to coat iron oxide cores of 5 nm. Weak stable positively charged suspensions can be obtained at concentration greater than 3 mmol.l-1 (corresponding to about 3.2 molecules per nm2), while the ...
, Denizot, , Tanguy, , Hindre, , Rump, , Jacques Le Jeune J, , Jallet   +5 more
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Seed-Mediated Synthesis of Iron Oxide and Gold/Iron Oxide Nanoparticles

Journal of Nanoscience and Nanotechnology, 2011
In this study, we prepared magnetic iron oxide and gold/iron oxide nanoparticles (NPs) and characterized their morphologies and properties by XRD, TEM, EDX, VSM and UV-vis measurements. The magnetite iron oxide NPs of 10 nm were synthesized by coprecipitation of Fe2+ and Fe+3 in the solution of NH4OH and then they were used as seed particles for the ...
Dung The, Nguyen, Dong-Wha, Park, Kyo-Seon, Kim   +2 more
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Nitric oxide donor superparamagnetic iron oxide nanoparticles

Materials Science and Engineering: C, 2013
This work reports a new strategy for delivering nitric oxide (NO), based on magnetic nanoparticles (MNPs), with great potential for biomedical applications. Water-soluble magnetic nanoparticles were prepared through a co-precipitation method by using ferrous and ferric chlorides in acidic solution, followed by a mercaptosuccinic acid (MSA) coating. The
Miguel M, Molina, Amedea B, Seabra, Marcelo G, de Oliveira, Rosangela, Itri, Paula S, Haddad   +4 more
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Surface oxidation of iron nanoparticles

Applied Surface Science, 2001
Abstract The electrochemical reaction between aqueous ferric chloride solution and Mg powder has been carried out in open atmosphere to prepare iron nanoparticles. Since iron particles get easily oxidised to α-Fe 2 O 3 , γ-Fe 2 O 3 and Fe 3 O 4 , the final product contains the oxides in different proportions with different dimensions depending on ...
Saurav Giri, Sanjukta Ganguli, Manoranjan Bhattacharya   +2 more
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Size-dependent oxidation in iron/iron oxide core-shell nanoparticles

Physical Review B, 2003
We report a detailed morphological and structural characterization of iron/iron oxide core-shell nanoparticles with x-ray diffraction and x-ray absorption spectroscopy performed at both the Fe and O K edges. Core-shell nanoparticles with core size ranging from 7 to 21 nm were synthesized using the inert gas condensation technique followed by 12 h of ...
Signorini L., Pasquini L., Savini L., Carboni R., Boscherini F., Bonetti E., Giglia A., Pedio M., Mahne N., Mahne N., Nannarone S., Nannarone S.   +11 more
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Multifunctional iron and iron oxide nanoparticles in silica

Materials Chemistry and Physics, 2011
Abstract Iron and iron oxide nanoparticles in silica layers deposited by sol–gel techniques on Si wafers were formed and studied. It was shown that multifunctional nanoparticles of different iron oxides possessing various physical properties can be fabricated by means of post-growth annealing of (SiO2:Fe)/SiO2/Si samples in various atmospheres.
Irena Šimkienė, Marius Treideris, Gediminas Niaura, Ritta Szymczak, Pavlo Aleshkevych, Alfonsas Rėza, Irmantas Kašalynas, Virginijus Bukauskas, Gintautas J. Babonas   +8 more
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Passivation and Depassivation of Iron/Iron Oxide Nanoparticles

ECS Meeting Abstracts, 2007
Abstract not Available.
James T. Nurmi, Vaishnavi Sarathy, Paul Tratnyek   +2 more
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Synthesis and the Characteristics of Iron/Iron Oxide Nanoparticles

IEEE Transactions on Magnetics, 2012
The nanosized Fe magnetic particles were successfully synthesized by traditional carbonyl iron manufacture technique. The active nanoparticles were then effectively passivated to be Fe/Fe3O4 composite structure. The structural characteristics were probed by X-ray diffraction, and transmission electron microscopy.
Jun He, Jing An, Dongliang Zhao
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Dendronized iron oxide nanoparticles for multimodal imaging

Biomaterials, 2011
The synthesis of small-size dendrons and their grafting at the surface of iron oxide nanoparticles were achieved with the double objective to obtain a good colloidal stability with a mean hydrodynamic diameter smaller than 100 nm and to ensure the possibility of tuning the organic coating characteristics including morphology, functionalities, physico ...
Giuseppe, Lamanna, Marie, Kueny-Stotz, Hind, Mamlouk-Chaouachi, Cynthia, Ghobril, Brice, Basly, Annabelle, Bertin, Imen, Miladi, Claire, Billotey, Geneviève, Pourroy, Sylvie, Begin-Colin, Delphine, Felder-Flesch   +10 more
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Superparamagnetic Iron Oxide Nanoparticles

2016
Thanks to their unique properties, inorganic nanostructures have become the center of modern material science. Among existing nanomaterials, magnetic iron oxide nanoparticles (IONP) have attracted a lot of interest. These nanoparticles are suitable for many technological applications such as contrast agent for magnetic resonance imaging. When comparing
Sophie Laurent, Céline Henoumont, Dimitri Stanicki, Sébastien Boutry, Estelle Lipani, Sarah Belaid, Robert N. Muller, Luce Vander Elst   +7 more
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