Results 211 to 220 of about 48,877 (253)

Microwave Assisted Synthesis of Magnetite Nanoparticles

Journal of Nanoscience and Nanotechnology, 2014
Magnetite nanoparticles of size ranging from 7-10 nm are prepared from aqueous solutions of Fe2+ and Fe3+ by microwave irradiation at different reaction temperatures ranging from 50 to 200 °C. The effect of reaction temperature on the structural and magnetic properties of nanoparticles is studied using X-ray diffraction (XRD), Transmission electron ...
S S, Pati, S, Kalyani, V, Mahendran, John, Philip   +3 more
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Interaction of fibrinogen with magnetite nanoparticles

Biophysics, 2010
The interaction between fibrinogen and magnetite nanoparticles in solution has been studied by the methods of spin labeling, ferromagnetic resonance, dynamic and Rayleigh light scattering. It was shown that protein molecules adsorb on the surface of nanoparticles to form multilayer protein covers.
A V, Bychkova, O N, Sorokina, A L, Kovarskiĭ, A B, Shapiro, V B, Leonova, M A, Rozenfel'd   +5 more
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Growing ZnO Crystals on Magnetite Nanoparticles

Chemistry – A European Journal, 2004
AbstractWe report herein on the oriented growth of ZnO crystals on magnetite nanoparticles. The ZnO crystals were grown by hydrolyzing a supersaturated aqueous solution of zinc nitrate. The seeds for the growth were magnetite nanoparticles with a diameter of 5.7 nm and a narrow size distribution. Hollowed ZnO hexagons of 0.15 μm width and 0.5 μm length
Rachel, Turgeman, Shay, Tirosh, Aharon, Gedanken   +2 more
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Blocking Properties of Superparamagnetic Magnetite Nanoparticles and Gold/Superparamagnetic Magnetite Composite Nanoparticles

Advanced Materials Research, 2015
The UV and IR block properties of superparamagnetic magnetite nanoparticles (SPMN) and SPMN/gold composite nanoparticles are investigated. The composite nanoparticles were prepared via sonochemical assisted reduction of gold precursor and deposition of gold nanoparticles (GNP) on amine functionalized SPMN.
Bashiru Kayode Sodipo, Azlan Abdul Aziz
openaire   +1 more source

Functionalized Magnetite Nanoparticles—Synthesis, Properties, and Bio-Applications

Critical Reviews in Solid State and Materials Sciences, 2007
Nanotechnology has generated tremendous hopes in recent years toward the design of advanced functional materials, especially in the bio-medical field. Nano-sized-materials such as magnetite nanoparticles display indeed fascinating physico-chemical properties that, if tuned properly, can be exploited to design new bio-diagnostic and therapeutic ...
P Majewski, B Thierry
openaire   +2 more sources

Synthesis and characterization of magnetite nanoparticles from mineral magnetite

Journal of Magnetism and Magnetic Materials, 2013
Abstract We have synthesized magnetite nanoparticles with sizes that range from 20 to 30 nm from mineral magnetite roughly 45 μm in size. The procedure consists in the dissolution of the mineral in an acidic medium and subsequent precipitation in a basic medium in the presence of oleic acid.
Mauricio Morel, Francisco Martínez, Edgar Mosquera   +2 more
openaire   +1 more source

Preparation and Properties of Magnetite and Polymer Magnetite Nanoparticles

Langmuir, 1999
A novel approach to prepare magnetic polymeric nanoparticles by synthesis of the magnetite core and polymeric shell in a single inverse microemulsion is reported. Stable magnetic nanoparticles colloid dispersion with narrow size distribution can thus be produced.
Pierre A. Dresco, Vladimir S. Zaitsev, Richard J. Gambino, Benjamin Chu   +3 more
openaire   +1 more source

Giant magnetostriction in magnetite nanoparticles

Materials Science and Engineering: B, 2012
Abstract Typically the value of the magnetostrictive coefficient (λ) observed for bulk magnetic materials such as cubic ferrites is 10−6. However, giant magnetostriction (λ  ≤ 10−3) is only observed in a few bulk intermetallic materials based on alloys of rare earth and iron such as TbFe, TbFe2, DyFe2 and Terefenol-D.
G. Balaji, R. Aravinda Narayanan, A. Weber, F. Mohammad, C.S.S.R. Kumar   +4 more
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Cryochemical Synthesis of Magnetite Nanoparticles

Moscow University Chemistry Bulletin, 2018
Magnetite nanoparticles 2–20 nm in size, forming agglomerates up to 70 nm in size, are obtained by cryochemical synthesis.
O. I. Vernaya, V. P. Shabatin, T. I. Shabatina   +2 more
openaire   +1 more source

Magnetite nanoparticles for medical applications

AIP Conference Proceedings, 2020
Magnetite nanoparticles with 15-30 nm average sizes were prepared by thermal decomposition. Their crystal structures and morphology were analyzed in correlation with the magnetic properties. Magnetic features, characteristic to Verwey transition were shown. The magnetizations and coercive fields increase parallelly with the nanoparticles sizes.
Roxana Dudric, Gabriela Souca, Ádám Szatmári, Tamás Szilárd, Stefan Nitica, Cristian Iacovita, Alin Iulian Moldovan, Rares Stiufiuc, Romulus Tetean, Emil Burzo   +9 more
openaire   +1 more source