نتایج جستجو برای: iron nickel oxide nanoparticles

تعداد نتایج: 424390  

2016
Sung-Jin Lee Heon Lee Ki-Joon Jeon Hyunwoong Park Young-Kwon Park Sang-Chul Jung

The bimetallic Fe-Ru oxide nanoparticles were synthesized in the liquid-phase plasma (LPP) method which employed iron chloride and ruthenium chloride as precursors. The active species (OH·, Hα, Hβ, and O(I)) and the iron and ruthenium ions were observed in the plasma field created by the LPP process. The spherical-shaped bimetallic Fe-Ru oxide nanoparticles were synthesized by the LPP reaction,...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

in this study, we synthesized herceptin conjugated magnetic nanoparticles (hmns) as an alternative probe to discover the levels of her2 (human epidermal growth factor receptor-2) in the surface of cells. these nanoparticles can be used by magnetic resonance imaging (mri) (non-invasive methods) for screening the patients with her2 positive or negative tumors. dextran coated iron oxide nanopartic...

Journal: :iranian journal of radiology 0
nahideh gharehaghaji department of radiology, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran mahmood nazarpoor department of radiology, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran; department of radiology, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran. tel: +98-4136681735, fax: +98-4133368733 hodaiseh saharkhiz department of medical physics, faculty of medicine, tabriz university of medical sciences, tabriz, iran

results the maximum si was obtained at the highest applied flip angle (45°). the linear relationship between si and nanoparticle concentration was seen up to 112.21 and 98.83 μmol fe/l for the short (10°) and the long (45°) flip angles, respectively (r2 = 0.95). these values were reduced up to 48.54 and 42.73 μmol fe/l for these flip angles with r2 of 0.99. conclusions the maximum si will be in...

Journal: :تحقیقات نظام سلامت 0
مریم فروغی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مهدی حاجیان نژاد دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمد مهدی امین دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. حمیدرضا پورزمانی دانشجوی دکتری، کمیته تحقیقات دانشجویی، گروه مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مرضیه وحید دستجردی کارشناس ارشد، گروه مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: increased impervious surfaces in urban areas not only increase runoff volume and peak flow, but also worsen urban storm water pollution. the polluted runoff has many adverse impacts on human life and environment. the purpose of this study was to investigate and compare the efficiency of sand columns coated with nanoparticles of iron oxide in the presence and absence of a magnetic fi...

Journal: :Defence Technology 2021

Nanothermites have been employed as fuel additives in energetic formulations due to their higher energy density over CHNO energetics. Nevertheless, sintering and degradation of nanoparticles significantly limit the practical use nanothermites. In this work, combustion characteristic aging behavior aluminum/iron oxide (Al/Fe2O3) nanothermite mixtures were investigated presence micron-scale nicke...

Journal: :Magnetic resonance in medicine 2015
Rik P M Moonen Pieternel van der Tol Stefanie J C G Hectors Lucas W E Starmans Klaas Nicolay Gustav J Strijkers

PURPOSE To evaluate spin-lock MR for detecting superparamagnetic iron oxides and compare the detection sensitivity of quantitative T1ρ with T2 imaging. METHODS In vitro experiments were performed to investigate the influence of iron oxide particle size and composition on T1ρ . These comprise T1ρ and T2 measurements (B0 = 1.41T) of agar (2%) with concentration ranges of three different iron ox...

Journal: :علوم تغذیه و صنایع غذایی ایران 0
محمد فرجی m faraji قاسم فدوی gh fadavi

in recent years, the scientists have focused on nanotecnology and its applications as the most important fields of research and development. the use of nanoparticles offers many advantages, due to their unique size and physical properties. magnetic iron oxide nanoparticles have been used in many fields, because of their unique properties such as large specific surface area and convenient separa...

In this research thin film heterogeneous cation exchange membrane was prepared by interfacial polymerization of polyacrylic acid-co-iron nickel oxide nanoparticle son PVC based substrate. Spectra analysis confirmed graft polymerization conclusively. The SEM images showed that polymerized layer covers the membranes by simple gel network entanglement. Results exhibited that membrane water content...

2005
G. Saini D. Shenoy D. K. Nagesha R. Kautz S. Sridhar M. Amiji

Iron oxide nanoparticles are used for contrast enhancement in magnetic resonance imaging (MRI). We have prepared gold-coated iron oxide nanoparticles that show no change in their superparamagnetic behavior as a consequence of coating. Their potential use as MRI contrast agents was investigated by monitoring their T2 relaxation time with concentration. Cytotoxicity of these nanoparticles was als...

Journal: :Physical chemistry chemical physics : PCCP 2009
Kazutaka Ozawa Kazuyuki Ishii

Enhanced S(1)--> T(1) intersystem crossing of silicon phthalocyanine (SiPc) owing to iron oxide nanoparticles and intense MCD signal of diamagnetic SiPc have been experimentally shown by using SiPcs supported on magnetic silica gel, in which the iron oxide nanoparticles were effectively dispersed.

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