نتایج جستجو برای: MgO

تعداد نتایج: 7273  

2008
Kaoru MIYATA Sentaro OZAWA Tatsuya YAMAZAKI Yoshisada OGINO

The activity of a Te-MgO catalyst prepared by adsorbing Te vapor onto MgO powder was determined by dehydrogenation of indane, 9,10-dihydrophenanthrene, cumene, and p-cymene. The activity of the Te-MgO catalyst was higher than that of the MgO catalyst in most of the cases investigated. The selectivity of the former catalyst was much higher than that of the later in all cases studied. The Te-MgO ...

2012
Abdul Rahim Yacob Mohd Khairul Asyraf Amat Mustajab Nur Syazeila Samadi

Nano MgO has been synthesized by hydration and dehydration method by modifies the commercial MgO. The prepared MgO had been investigated as a heterogeneous base catalyst for transesterification process for biodiesel production using palm oil. TGA, FT-IR and XRD results obtained from this study lie each other and proved in the formation of nano MgO from decomposition of Mg(OH)2. This study prove...

Journal: :American journal of physiology. Cell physiology 2008
Hideyuki Yamawaki Kazuaki Saito Muneyoshi Okada Yukio Hara

Methylglyoxal (MGO) is a reactive metabolite of glucose. Since the plasma concentration of MGO is increased in diabetic patients, MGO is implicated in diabetes-associated vascular endothelial cells (ECs) injury, which might be responsible for atherosclerosis. In the present study, we examined effects of treatment of human umbilical vein ECs with MGO on EC morphology and inflammatory responses. ...

2016
YAN PING SUN JUN FEI GU XIAO BIN TAN CHUN FEI WANG XIAO BIN JIA LIANG FENG JI PING LIU

Methylglyoxal (MGO)-induced carbonyl stress and pro-inflammatory responses have been suggested to contribute to endothelial dysfunction. Curcumin (Cur), a polyphenolic compound from Curcuma longa L., may protect endothelial cells against carbonyl stress-induced damage by trapping dicarbonyl compounds such as MGO. However, Cur-MGO adducts have not been studied in depth to date and it remains to ...

2008
Zhen-Xing Tang Lu-E Shi

MgO is an important inorganic material, which can be used in many aspects, such as catalyst, toxic-waste remediation agent, adsorbent, and others. In order to make use of MgO, nano-MgO was prepared by ultrasonic method using Mg (CH3COO)2.2H2O as precursor, NaOH aqueous solution as precipitant in this paper. Effect factors on MgO nano-particle size were investigated. Characteristics of samples w...

Journal: :The Laryngoscope 2011
Joshua Jervis-Bardy Andrew Foreman Sarah Bray Lorwai Tan Peter-John Wormald

OBJECTIVES/HYPOTHESIS Low pH, hydrogen peroxide generation, and the hyperosmolarity mechanisms of antimicrobial action are ubiquitous for all honeys. In addition, manuka honey has been shown to contain high concentrations of methylglyoxal (MGO), contributing the relatively superior antimicrobial activity of manuka honey compared to non-MGO honeys. In high concentrations, manuka honey is effecti...

Journal: :American journal of physiology. Cell physiology 2012
Yang Yang Shanshan Li Anuhya S Konduru Shuang Zhang Timothy C Trower Weiwei Shi Ningren Cui Lei Yu Yali Wang Daling Zhu Chun Jiang

Diabetes mellitus is characterized by hyperglycemia and excessive production of intermediary metabolites including methylglyoxal (MGO), a reactive carbonyl species that can lead to cell injuries. Interacting with proteins, lipids, and DNA, excessive MGO can cause dysfunction of various tissues, especially the vascular walls where diabetic complications often take place. However, the potential v...

2013
Nyun Jong Lee Eisuke Ito Yu Jeong Bae Tae Hee Kim

Interfacial properties of 5 nm MgO(001)/7 nm Fe(001)/1.8 nm MgO(001)/t nm Cu-phthalocyanine (CuPc) hybrid multilayers with t = 0, 1, 7, and 10 were investigated by using x-ray photoemission spectroscopy (XPS). Rather sharp interfacial properties were observed in the CuPc films grown on an epitaxial MgO/Fe/MgO(001) trilayer than a MgO/Fe(001) bilayer. This work suggests a new way to improve devi...

2009
Rahim Yacob Mohd Khairul Asyraf Amat Mustajab Nur Syazeila Samadi

dehydration method by modifies the commercial MgO. The prepared MgO had been investigated as a heterogeneous base catalyst for transesterification process for biodiesel production using palm oil. TGA, FT-IR and XRD results obtained from this study lie each other and proved in the formation of nano MgO from decomposition of Mg(OH) 2. This study proved that the prepared nano MgO was a better base...

2015
Guanzhi Cai Zhiming Wu Fei Guo Yaping Wu Heng Li Qianwen Liu Mingming Fu Ting Chen Junyong Kang

The perpendicular magnetic anisotropy (PMA) of Fe1-x Co x thin films on MgO(001) was investigated via first-principles density-functional calculations. Four different configurations were considered based on their ground states: Fe/MgO, Fe12Co4/MgO, Fe10Co6/MgO, and Fe8Co8/MgO. As the Co composition increases, the amplitude of PMA increases first from Fe/MgO to Fe12Co4/MgO, and then decreases in...

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