نتایج جستجو برای: iron nanoparticle

تعداد نتایج: 171754  

A.R. Moghadassi, E. Bagheripour M. Nemati S.M. Hosseini

In this study, a mixed matrix polyethersulfone/iron-nickel oxide nanoparticle nanofiltration membrane was prepared by the solution casting technique. Polyvinylpyrrolidone was also used as a membrane pore former in membrane fabrication. The effect of iron-nickel oxide nanoparticles concentration in the casting solution on the membrane structure and performance was investigated. Scanning...

2008
Ta-I Yang Leo C. Kempel Peter Kofinas

The aim of this research is to elucidate the size effect of magnetic nanoparticles on the resultant magneto-dielectric properties of polymer nanocomposites at radio frequencies. The block copolymer of [styrene-b-ethylene/butylene-b-styrene] (SEBS) was utilized as a matrix for the templating of magnetic nanoparticles. Surfactant-modified iron oxide (Fe3O4) nanoparticles of various sizes were suc...

Journal: :Nanoscale 2012
Samuel J Maguire-Boyle Michael V Liga Qilin Li Andrew R Barron

A bi-functional nano-composite coating has been created on a porous Nomex® fabric support as a trap for aspirated virus contaminated water. Nomex® fabric was successively dip-coated in solutions containing cysteic acid functionalized alumina (alumoxane) nanoparticles and cysteic acid functionalized iron oxide (ferroxane) nanoparticles to form a nanoparticle coated Nomex® (NPN) fabric. From SEM ...

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...

2013
Benjamin GilBert lee Penn Valeri PetkoV Dino sPaGnoli Glenn a. Waychunas

Much of the bioavailable and geochemically reactive iron in aerobic, circumneutral settings is frequently found in the form of nanoscale particles of a hydrated iron(III) oxyhydroxide phase known as ferrihydrite. Developing useful structural descriptions of defective nanophases such as ferrihydrite has long posed significant challenges. Recently, Michel et al. (2007, 2010) proposed a structural...

Journal: :journal of nanostructures 2012
a. akbari f. mohamadzadeh

nowdays,  iron  nanoparticles  due  to  their  unique  characteristics  are used  in  all  of  sciences  and  technology.  these  nano  particles  due  to their  electrical, magnetic,  optical  and  catalytic  properties  and  having high  area  and  activity  that  is  promped  by  their  small  size  and most importantly  many  scientists  from  the  entire  world  are  interested  in their  ...

2008
H. Kosuge M. Terashima M. Uchida S. Sherlock P. S. Tsao M. J. Young T. Douglas H. Dai M. V. McConnell

Introduction: Inflammation plays a critical role in the progression of atherosclerosis. Novel iron-based nanoparticle platforms may allow noninvasive high-field MRI detection of vascular macrophages in mouse arteries. Purpose: To evaluate two novel nanoparticle platforms – magnetite incorporated human ferritin protein cages (HFn-Fe) and graphite/FeCo core-shell nanocrystals (G-FeCo) – for MRI o...

Journal: :avicenna journal of medical biotechnology 0

conjugation of monoclonal antibodies to super paramagnetic nanoparticles is an effective method for cancer diagnosis and treatment. in this study the humanized anti her2/neu monoclonal antibody- herceptin- was conjugated to super paramagnetic iron oxide (spio) nanoparticles using edc method. the concentration of the conjugated antibodies was measured by bradford assay. the antibody-nanoparticle...

2011
Marcus Settles Martin Etzrodt Katja Kosanke Matthias Schiemann Alexander Zimmermann Reinhard Meier Rickmer Braren Armin Huber Ernst J. Rummeny Ralph Weissleder Filip K. Swirski Moritz Wildgruber

OBJECTIVE To explore the capacity of human CD1⁺CD16⁺⁺ and CD14⁺⁺CD16⁻ monocytes to phagocyte iron-oxide nanoparticles in vitro. METHODS Human monocytes were labeled with four different magnetic nanoparticle preparations (Ferumoxides, SHU 555C, CLIO-680, MION-48) exhibiting distinct properties and cellular uptake was quantitatively assessed by flow cytometry, fluorescence microscopy, atomic ab...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2014
Giovanna M Bernal Michael J LaRiviere Nassir Mansour Peter Pytel Kirk E Cahill David J Voce Shijun Kang Ruben Spretz Ulrich Welp Sandra E Noriega Luis Nunez Gustavo F Larsen Ralph R Weichselbaum Bakhtiar Yamini

UNLABELLED A major obstacle to the management of malignant glioma is the inability to effectively deliver therapeutic agent to the tumor. In this study, we describe a polymeric nanoparticle vector that not only delivers viable therapeutic, but can also be tracked in vivo using MRI. Nanoparticles, produced by a non-emulsion technique, were fabricated to carry iron oxide within the shell and the ...

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