نتایج جستجو برای: 100 μgkg iron nanoparticles group 4

تعداد نتایج: 2595889  

2012
Enav Corem-Salkmon Benny Perlstein Shlomo Margel

BACKGROUND Colon cancer is one of the major causes of death in the Western world. Early detection significantly improves long-term survival for patients with the disease. Near- infrared (NIR) fluorescent nanoparticles hold great promise as contrast agents for tumor detection. NIR offers several advantages for bioimaging compared with fluorescence in the visible spectrum, ie, lower autofluoresce...

Journal: :Journal of nanoscience and nanotechnology 2010
Vikas Nandwana Girija S Chaubey Yunpeng Zhang J Ping Liu

Fe(x)Pt(y)Au(100-x-y) nanoparticles of size 3.5 nm were prepared by polyol reduction of platinum acetylacetonate and gold acetate and the thermal decomposition of iron pentacarbonyl. The as-synthesized nanoparticles with disordered fcc structure were then heat treated to transform to the L1(0) structure with high magnetocrystalline anisotropy. By tuning the stoichiometry of the Fe(x)Pt(y)Au(100...

Polyethersulfone (PES) based nanocomposite nanofiltration membrane was prepared by immersion precipitation method and casting solution technique using  poly (acrylic acid) grafted-iron oxide nanoparticles (Fe3O4) as hydrophilic filler additives. For this purpose, iron oxide nanoparticles were modified by in situ polymerization of acrylic acid in aqueous solution by potassium persulfate as initi...

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...

2017

Submit Manuscript | http://medcraveonline.com treating these and other bacterial infections currently exist; there is still an essential need for new and improved approaches for bacterial destruction. Nanomedicine is one approach to overcome challenges of conventional drug delivery systems based on the development and fabrication of nanostructures. Various types of nanoparticulate systems have ...

2016
Po-Jen Hsiao Jenq-Shyong Chan Kun-Lin Wu Wen-Fang Chiang Jing-Shu Huang Chia-Chao Wu Pauling Chu Jin-Shuen Chen

BACKGROUND It is intriguing and imperative that the comparison of the iron preparations in hemodialysis (HD) patients. This study aimed to observe the short-term efficacy of parenteral iron sucrose and ferric chloride in HD patients. MATERIALS AND METHODS This was a consecutive 10-week single-blind study in Taiwan. An intravenous iron supplement of 100 mg/week was administered as an infusion ...

Journal: :Journal of nanoscience and nanotechnology 2012
Yuzhi Hao Steven Song Xiaoyan Yang James Xing Jie Chen

In this article, we report a new method-a sonication method to disperse iron oxide nanoparticles into smaller nanoparticles and make gold ions absorb onto the surface or trapped in the micropores of the iron oxide nanoparticles using sonication action. By using quick reduction of ascorbic acid and post-HCI solution treatment, gold covered magnetic nanoparticles (mGNPs) with spherical morphology...

Journal: :Environmental science & technology 2007
Wassana Yantasee Cynthia L Warner Thanapon Sangvanich R Shane Addleman Timothy G Carter Robert J Wiacek Glen E Fryxell Charles Timchalk Marvin G Warner

We have shown that superparamagnetic iron oxide (Fe3O4) nanoparticles with a surface functionalization of dimercaptosuccinic acid (DMSA) are an effective sorbent material for toxic soft metals such as Hg, Ag, Pb, Cd, and Tl, which effectively bind to the DMSA ligands and for As, which binds to the iron oxide lattices. The nanoparticles are highly dispersible and stable in solutions, have a larg...

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...

2014
Keisuke Takahashi Yongming Wang Shotaro Chiba Yuki Nakagawa Shigehito Isobe Somei Ohnuki

Hydrogenation of iron nanoparticles was performed both computationally and experimentally where previously chemically-bonded iron hydride is considered to be unachievable under ordinary conditions. Density functional theory (DFT) calculations predict that hydrogenated iron nanoparticles are stabilized on a single-layer graphene/Cu substrate. Experimentally, iron nanoparticles were deposited ont...

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