Results 261 to 270 of about 2,189,522 (303)

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
openaire   +2 more sources

Shape control of iron oxide nanoparticles

Physical Chemistry Chemical Physics, 2009
We present here a detailed overview on the effect of various synthesis parameters during the synthesis of iron oxide nanoparticles with different shapes, through decomposition of a preformed iron oleate complex, at high temperature. While this procedure has been previously shown to produce monodisperse magnetite spheres, the use of specific additives ...
Alexey, Shavel, Luis M, Liz-Marzán
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources

Synthesis, characterization, applications, and challenges of iron oxide nanoparticles

Nanotechnology, Science and Applications, 2016
Attarad Ali,1 Hira Zafar,1 Muhammad Zia,1 Ihsan ul Haq,2 Abdul Rehman Phull,3 Joham Sarfraz Ali,1 Altaf Hussain4 1Department of Biotechnology, 2Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan; 3Department of Biology, Kongju National ...
Ihsan Ul Haq, Abdul Rehman Phull, Zia M
exaly   +1 more source

Strategies for the Biofunctionalization of Gold and Iron Oxide Nanoparticles

Langmuir, 2014
The field of nanotechnology applied to medicine (nanomedicine) is developing at a fast pace and is expected to provide solutions for early diagnosis, targeted therapy, and personalized medicine. However, designing nanomaterials for biomedical applications is not a trivial task.
Raluca M. Fratila, Scott G. Mitchell, Pablo del Pino, Valeria Grazu, Jesús M. de la Fuente   +4 more
openaire   +3 more sources

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

Passivation and Depassivation of Iron/Iron Oxide Nanoparticles

ECS Meeting Abstracts, 2007
Abstract not Available.
James T. Nurmi, Vaishnavi Sarathy, Paul Tratnyek   +2 more
openaire   +1 more source