نتایج جستجو برای: iron oxide nanoparticle

تعداد نتایج: 332910  

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: :تحقیقات دامپزشکی 0
حسن مروتی گروه علوم پایه، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران حسین نجف زاده گروه علوم پایه، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران سیده مهسا پورموسوی دانش آموخته بافت شناسی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران علی شهریاری گروه علوم پایه، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران بابک محمدیان گروه پاتوبیولوژی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران ایرج کاظمی نژاد گروه فیزیک، دانشکده علوم دانشگاه شهید چمران اهواز، اهواز- ایران

background: the most common metal used in the body is iron and since it may produce ros, it could potentially be a dangerous substance. objectives: regarding the side effects of nanomaterials such as nano iron particles and possibility of environmental contamination including air pollution with nanoscale iron particle, this study was designed to compare the effects of conventional iron oxide wi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Klara Kirschbaum Jana K Sonner Matthias W Zeller Katrin Deumelandt Julia Bode Rakesh Sharma Thomas Krüwel Manuel Fischer Angelika Hoffmann Milene Costa da Silva Martina U Muckenthaler Wolfgang Wick Björn Tews John W Chen Sabine Heiland Martin Bendszus Michael Platten Michael O Breckwoldt

Innate immune cells play a key role in the pathogenesis of multiple sclerosis and experimental autoimmune encephalomyelitis (EAE). Current clinical imaging is restricted to visualizing secondary effects of inflammation, such as gliosis and blood-brain barrier disruption. Advanced molecular imaging, such as iron oxide nanoparticle imaging, can allow direct imaging of cellular and molecular activ...

Journal: :iranian journal of radiology 0
hodaiseh saharkhiz department of medical physics, faculty of medicine, tabriz university of medical sciences, tabriz, iran; student research committee, school of medicine, tabriz university of medical sciences, tabriz, iran nahideh gharehaghaji department of radiology, school of paramedicine, tabriz university of medical sciences, tabriz, iran; department of radiology, faculty of paramedicine, tabriz university of medical sciences, daneshgah square, tabriz, iran. tel.: +98-4113356911, fax: +98-4113368733 mahmood nazarpoor department of radiology, school of paramedicine, tabriz university of medical sciences, tabriz, iran asghar mesbahi department of medical physics, faculty of medicine, tabriz university of medical sciences, tabriz, iran masoud pourissa department of radiology, school of medicine, tabriz university of medical sciences, tabriz, iran

conclusions ti is an important parameter to consider in the relationship between si and nanoparticle concentrations. an increase in ti leads to a decrease in the range of linearity. results the results indicate that si depended on the concentration of nanoparticles and ti. in addition, si increased by increasing the tis ranging from 200 to 400 ms for all studied concentrations. the linear relat...

2014

The production and use of iron oxide nanoparticles are growing exponentially due to its wide applications in different fields of science and technology. The objective of this study is to synthesize iron oxide nanoparticles, and modification of its surface to make it less toxic. The iron oxide nanoparticles were synthesized by chemical co-precipitation method, and surface modification was done u...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2009
Lily Yang Xiang-Hong Peng Y Andrew Wang Xiaoxia Wang Zehong Cao Chunchun Ni Prasanthi Karna Xinjian Zhang William C Wood Xiaohu Gao Shuming Nie Hui Mao

PURPOSE Cell-surface receptor-targeted magnetic iron oxide nanoparticles provide molecular magnetic resonance imaging contrast agents for improving specificity of the detection of human cancer. EXPERIMENTAL DESIGN The present study reports the development of a novel targeted iron oxide nanoparticle using a recombinant peptide containing the amino-terminal fragment of urokinase-type plasminoge...

2011
Heike E. Daldrup-Link Daniel Golovko Brian Ruffell David G. DeNardo Rosalinda Castaneda Celina Ansari Jianghong Rao Grigory A. Tikhomirov Michael F. Wendland Claire Corot Lisa M. Coussens

Purpose: The presence of tumor-associatedmacrophages (TAM) in breast cancer correlates strongly with poor outcome. The purpose of this study was to develop a clinically applicable, noninvasive diagnostic assay for selective targeting and visualization of TAMs in breast cancer, based on magnetic resonanceI and clinically applicable iron oxide nanoparticles. Experimental Design: F4/80-negativemam...

2009
Taeghwan Hyeon

O G Inorganic Nanoparticles for MRI Contrast Agents R E S By Hyon Bin Na, In Chan Song, and Taeghwan Hyeon* S R E P O R T Various inorganic nanoparticles have been used as magnetic resonance imaging (MRI) contrast agents due to their unique properties, such as large surface area and efficient contrasting effect. Since the first use of superparamagnetic iron oxide (SPIO) as a liver contrast agen...

Journal: :The journal of physical chemistry letters 2012
Bin Dong David L Miller Christopher Y Li

In this Letter, we report, for the first time, using polymer single crystal as magnetically recoverable support for nanoparticle catalysts. This catalyst system is composed of polymer single crystal, platinum nanoparticles, and iron oxide nanoparticles, which act as support, catalysts, and magnetic responsive materials, respectively. Platinum nanoparticles and iron oxide nanoparticles were bond...

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