نتایج جستجو برای: نانوکامپوزیت mgo go

تعداد نتایج: 90148  

Journal: :مجله بین المللی علوم آزمایشگاهی 0
fahima danesh pouya javad zavar-reza beman ali jalali naser danesh pouya

backgrounds and aims: methylglyoxal (mgo) is an –α, β dicarbonyl aldehyde inevitably produced from triose-phosphate intermediates of glycolysis, and amino acid. increased mgo in blood leads to alterations in coagulation, clot permeability and thus, atherosclerosis in children with diabetes; however, the precise mechanism is not clear. the present study aimed to compare different concentrations ...

2014
Amritpal Singh Subhadra Gupta Majd Kuteifan Marko Lubarda Vitaliy Lomakin Oleg Mryasov

Articles you may be interested in Interlayer exchange coupled composite free layer for CoFeB/MgO based perpendicular magnetic tunnel junctions J. Thermal stability and spin-transfer switchings in MgO-based magnetic tunnel junctions with ferromagnetically and antiferromagnetically coupled synthetic free layers Appl. Effect of interlayer coupling in CoFeB/Ta/NiFe free layers on the critical switc...

Journal: :Physical review letters 2001
H L Meyerheim R Popescu J Kirschner N Jedrecy M Sauvage-Simkin B Heinrich R Pinchaux

The geometric structure of MgO deposited on Fe(001) in ultrahigh vacuum by electron evaporation was determined in detail by using surface x-ray diffraction. In contrast to the common belief that MgO grows in direct contact on the Fe(001) substrate, we find an FeO interface layer between the substrate and the growing MgO structure which has not been considered thus far. This result opens new per...

Journal: :Coatings 2021

In this article, we proposed a facile method to electrophoretically deposit highly conductive and corrosion-resistant graphene layer on metal bipolar plates (BPs) while avoiding the oxidation of substrate during electrophoretic deposition (EPD). p-Phenylenediamine (PPD) was first grafted onto negatively charged oxide (GO) obtain modified (MGO) bearing positive charges. Then, MGO dispersed in et...

1997
Peidong Yang Charles M. Lieber

A chemical approach to the formation of columnar defects involving the growth and incorporation of MgO nanorods into high temperature superconductors (HTS’s) has been developed. MgO nanorods were incorporated into Bi2Sr2CaCu2Oz, Bi2Sr2Ca2Cu3Oz, and Tl2Ba2Ca2Cu3Oz superconductors at areal densities up to 2 3 1010ycm2. Microstructural analyses of the composites demonstrate that the MgO nanorods c...

2001
W. Wulfhekel M. Klaua D. Ullmann F. Zavaliche J. Kirschner

We have grown epitaxial single-crystal magnetotunnel junctions using Fe~001! substrates, MgO~001! spacers and Fe top electrodes. We have used scanning tunneling microscopy and atomic force microscopy to measure the tunneling characteristics as a function of position and demonstrated that local tunneling can be obtained such that the buried MgO can be characterized with nm resolution. Local I(V)...

2012
Woo Jin Jeong Jee Hyun Rho Young Geol Yoon Seung Hee Yoo Na Young Jeong Won Yeol Ryu Hee Bae Ahn Woo Chan Park Sae Heun Rho Hee Seong Yoon Yung Hyun Choi Young Hyun Yoo

In addition to its well-characterized role in the lens, αB-crystallin performs other functions. Methylglyoxal (MGO) can alter the function of the basement membrane of retinal pigment epithelial (RPE) cells. Thus, if MGO is not efficiently detoxified, it can induce adverse reactions in RPE cells. In this study, we examined the mechanisms underlying the anti-apoptotic activity of αB-crystallin in...

2016
Zhenjun Song Hu Xu

The hydrogen peroxide dissociation on MgO(001) films deposited on Mo(001) surface is investigated by employing periodic density-functional theory methods. The pristine MgO(001) surface showing chemical inertness prefers the weak adsorbing molecular configuration and is extremely difficult to react with hydrogen peroxide. As far as we know, energetically favorable decomposition state of hydrogen...

Journal: :Physical chemistry chemical physics : PCCP 2016
Zhiyao Duan Graeme Henkelman

Density functional theory calculations reveal that the work function of Au supported on MgO(001) is substantially reduced because of an interfacial dipole moment formed at the Au/MgO interface. Consequently, the Au/MgO interface plays an active role in the activation of O2 molecules by promoting charge transfer to the O2 2π* orbital. The presence of F-centers in the MgO substrate can further pr...

2002
W. Z. Li J. G. Wen M. Sennett Z. F. Ren

High quality double-walled carbon nanotubes (DWNTs) were synthesized by decomposition of methane over cobalt (Co) nanoparticles supported on porous MgO nanoparticles. The growth was significantly influenced by catalyst concentration and MgO type. Catalysts with 2.5–5 wt% Co loaded MgO (pore size: 4 nm) efficiently grow DWNTs with diameters of 2–4 nm, high graphitization, clean surfaces, and cle...

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