Results 171 to 180 of about 16,581 (207)

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

Effect of magnetite nanoparticles on human blood components

Bulletin of Experimental Biology and Medicine, 2023
The qualitative composition and zeta potential of magnetite nanoparticles (size 4.2±1.2 nm) obtained by co-precipitation method were determined by X-ray and diffraction dynamic light scattering. The zeta potential of Fe3O4 particles was -15.1±4.5 mV.
I A, Koltakov, E V, Shilova, M A, Nakvasina, S S, Antipov, E E, Korchagina, V G, Artyukhov   +5 more
openaire   +2 more sources

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
openaire   +2 more sources

Strong adsorption of chlorotetracycline on magnetite nanoparticles

Journal of Hazardous Materials, 2011
In this work, environmentally friendly magnetite nanoparticles (Fe(3)O(4) MNPs) were used to adsorb chlorotetracycline (CTC) from aqueous media. Fe(3)O(4) MNPs exhibit ultrahigh adsorption ability to this widely used antibiotic. The adsorption behavior of CTC on Fe(3)O(4) MNPs fitted the pseudo-second-order kinetics model, and the adsorption ...
Di, Zhang, Hongyun, Niu, Xiaole, Zhang, Zhaofu, Meng, Yaqi, Cai   +4 more
openaire   +2 more sources

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
openaire   +2 more sources

Stimuli-Responsive Magnetite Nanoparticle Monolayers

The Journal of Physical Chemistry C, 2011
The stimuli-responsive behavior of copolymer-capped NPs (Fe 3O4@MEO2MA90-co-OEGMA10 and Fe3O4@MEO2MA) was studied in the temperature interval between 6 and 43 °C at the air/water interface, and at 20 and 37 °C on the surface of 150 mM NaCl, 1 M NaCl, and 2% citric acid aqueous solutions.
Stefaniu, C., Chanana, M., Wang, D., Brezesinski, G., Möhwald, H.   +4 more
openaire   +2 more sources

Tissue Engineering Using Magnetite Nanoparticles

2011
The major advantage of magnetic manipulation is "remote control." Magnetic labeling of cells with magnetic nanoparticles enables the manipulation of cells and also the control of cell functions by applying an external magnetic field. "Functional" magnetite nanoparticles were developed for cell manipulation using magnetic force, and the magnetite ...
Akira, Ito, Masamichi, Kamihira
openaire   +2 more sources

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

Stability of core–shell magnetite nanoparticles

Colloids and Surfaces B: Biointerfaces, 2014
In 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, U, Wykowska, D, Satuła, E, Zambrzycka   +3 more
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