Considering the great impact of a material's surface area on adsorption processes, hollow nanotube magnetic zinc oxide with a favorable surface area of 78.39 m²/g was fabricated with the assistance of microwave technology in the presence of poly vinyl alcohol (PVA) as a stabilizing agent followed by sonic precipitation of magnetite nano-particles. Scanning electron microscopy (SEM) and transmis...

BACKGROUND Lead is one of the hazardous materials which is associated with pollution and toxicity problems. This paper describes a novel approach for removal of lead from wastewater. Although naked magnetic nanoparticles have been applied for removal of different pollutants from wastewater, there was no research on employment of covalently PEG modified magnetic nanoparticles for such purpose. ...

High sensitivity and suitable sizes are essential for magnetic iron oxide contrast agents for cell imaging. In this study, we have fabricated highly MR sensitive magnetite nanoclusters (MNCs) with tunable sizes. These clusters demonstrate high MR sensitivity. Especially, water suspensions of the MNCs with average size of 63 nm have transverse relaxivity as high as 630 s-1mM-1, which is among th...

widespread arsenic contamination of mining wastewater of zarshouran (west azerbaijan province) hasled to a massive epidemic of arsenic poisoning in the whole of surrounding areas. it is estimated thatapproximately all agriculture fields are being irrigated with the water that its arsenic concentrationselevated above the world health organization’s standard of 10 parts per billion. a novel advan...

SIMULATION OF THE NEOFORMATION PROCESSES OF NANO-SIZED FE-Ni AND MAGNETITE PARTICLES IN BROWN COLORED OLIVINES OF SOME MARTIAN METEORITES (SNC). V.H. Hoffmann, T. Mikouchi, T. Kurihara, M. Funaki, M. Torii, 1 Institute for Geosciences and ZAG, University of Tübingen, Sigwartstrasse 10, 72076 Tübingen, and 2 Department of Geoand Environmental Sciences, University of München, Theresienstrasse 41,...

Magnetotactic bacteria (MTB) biomineralize magnetosomes, nano-scale crystals of magnetite or greigite in membrane enclosures that comprise a permanent magnetic dipole in each cell. MTB control the mineral composition, habit, size, and crystallographic orientation of the magnetosomes, as well as their arrangement within the cell. Studies involving magnetosomes that contain mineral and biological...

Related Articles A facile approach to enhance the high temperature stability of magnetite nanoparticles with improved magnetic property J. Appl. Phys. 113, 044314 (2013) Thermal conductivity measurement of individual Bi2Se3 nano-ribbon by self-heating three-ω method Appl. Phys. Lett. 102, 043104 (2013) Structural and multiferroic properties of Bi1−xInxFeO3 (0≤x≤0.20) nanoparticles J. Appl. Phys...

The surface of magnetite nanoparticles as nano-sized solid support was modified with a molybdenum-Schiff base complex to prepare an easily separable heterogeneous catalyst for the epoxidation of olefins. Characterization techniques such as Fourier transform infrared and inductively coupled plasma optical emission spectroscopies, X-ray diffraction, vibrating sample magnetometry, scanning, an...

In this work, palladium (II) chloride-supported-N-(dipyridine-2-ylmethyl)-3-(silica-magnetite)propan-1-amine (nano-Fe3O4@SiO2@dipy@PdCl2) as a new nanostructured catalyst was prepared and its structure completely studied by different techniques and then successfully tested on Heck and Suzuki reactions.