Results 221 to 230 of about 24,891 (249)
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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
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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
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Stability of core–shell magnetite nanoparticles
Colloids and Surfaces B: Biointerfaces, 2014In the paper, we present three different types of magnetite nanoparticles which were prepared from co-percipitation of iron (II) and (III) chlorides in aqueous solution with and without SiO2 and from thermal decomposition of iron (III) acetylacetonate in nonaqeous solutions.
B, Kalska-Szostko +3 more
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Synthesis and characterization of magnetite nanoparticles from mineral magnetite
Journal of Magnetism and Magnetic Materials, 2013Abstract 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 +2 more
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On the adsorption of magnetite nanoparticles on lysozyme amyloid fibrils
Colloids and Surfaces B: Biointerfaces, 2016An adsorption of magnetic nanoparticles (MNP) from electrostatically stabilized aqueous ferrofluids on amyloid fibrils of hen egg white lysozyme (HEWL) in 2mg/mL acidic dispersions have been detected for the MNP concentration range of 0.01-0.1vol.%.
Majorosova, Jozefina +13 more
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Preparation and Characterization of Magnetite Nanoparticles
Applied Mechanics and Materials, 2014The preparation of magnetite nanoparticles with controlled size has attracted of scientific and technological broad attention. Spherical magnetite nanoparticles in the size range from 8nm to 22 nm were synthesized by coprecipiation method using hexadecyl trimethyl ammonium bromide (CTAB) as dispersant.
Fu Yan Zhao, Ya Ling Li, Lu Hai Li
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Magnetotransport of magnetite nanoparticle arrays
Physical Review B, 2006We combine a material self-assembly with conventional lithographic processes in order to fabricate magnetoelectronic devices composed of ordered three-dimensional arrays of magnetite $({\mathrm{Fe}}_{3}{\mathrm{O}}_{4})$ nanoparticles. The device magnetoresistance reaches 35% at 60 K, corresponding to an electron spin polarization of 73 ...
Hao Zeng +5 more
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Sorption of uranium on magnetite nanoparticles
Journal of Radioanalytical and Nuclear Chemistry, 2010Magnetite (Fe3O4) nanoparticle was synthesized using a solid state mechanochemical method and used for studying the sorption of uranium(VI) from aqueous solution onto the nanomaterial. The synthesized product is characterized using SEM, XRD and XPS. The particles were found to be largely agglomerated.
Debasish Das +4 more
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Cryochemical Synthesis of Magnetite Nanoparticles
Moscow University Chemistry Bulletin, 2018Magnetite nanoparticles 2–20 nm in size, forming agglomerates up to 70 nm in size, are obtained by cryochemical synthesis.
O. I. Vernaya +2 more
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The synthesis of octahedral nanoparticles of magnetite
Materials Letters, 2006Abstract This work presents an efficient method of largely synthesizing octahedral magnetite nanoparticles. Without any surfactant, octahedral magnetite nanoparticles were successfully achieved by means of an oxidation–precipitation method with ferrous sulfate as starting material, which was pro rata oxidized to ferric salts by NaNO 3 after ...
Wenguang Yu +5 more
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Nickel binding with magnetite nanoparticles
Environmental Science: NanoNickel surface complexation, incorporation and surface precipitation processes are controlled by magnetite stoichiometry, which can affect nickel fate and behavior in the environment.
Laura Fablet +8 more
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