نتایج جستجو برای: vanadium complex

تعداد نتایج: 790945  

2011
Lin Xu Liqiang Mai Chunhua Han Xu Xu Yanzhu Luo

Lithium and Lithium-ion batteries for portable electronic devices and hybrid electric vehicles have gained great importance for energy storage today. However, how to prepare cathode materials with higher energy density, high potentials, and longer cycle life is still a challenge. Compared with commercial LiCoO2, vanadium oxides have higher specific capacity and interesting layered structures, w...

2014
Shuyan Zhang Mikhail A. Kats Yanjie Cui You Zhou Yu Yao Shriram Ramanathan Federico Capasso

Articles you may be interested in Optical switching and photoluminescence in erbium-implanted vanadium dioxide thin films Effect of oxygen stoichiometry on the insulator-metal phase transition in vanadium oxide thin films studied using optical pump-terahertz probe spectroscopy Appl. Tuning the properties of VO2 thin films through growth temperature for infrared and terahertz modulation applicat...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2015
Alejandro Ayala Quezada Hiroya Murakami Norio Teshima Tadao Sakai Shoji Motomizu

An advanced stopped-in-loop flow analysis (SILFA) is proposed for the catalytic determinations of vanadium and iron. The chemistry relies on a vanadium- or iron-catalyzed oxidative reaction of p-anisidine by bromate or hydrogen peroxide in the presence of an activator (Tiron or 1,10-phenanthlorine) to form a red dye (510 nm). Reagents for the vanadium- or iron-catalyzed reaction are well mixed ...

2017
Daniel Scott Charles Mikhail Feygenson Katharine Page Joerg Neuefeind Wenqian Xu Xiaowei Teng

Aqueous electrochemical energy storage devices using potassium-ions as charge carriers are attractive due to their superior safety, lower cost and excellent transport properties compared to other alkali ions. However, the accommodation of potassium-ions with satisfactory capacity and cyclability is difficult because the large ionic radius of potassium-ions causes structural distortion and insta...

2006
Diane Stoecker

Thirty-five species of nearshore, benthic ascidians were collected in Bermuda and notes were made on their habitat, microhabitat, susceptibility to epizoic recruitment, morphology, and acidity. Twenty-four ascidian species were later analyzed for vanadium and iron contents. Ten species had vanadium concentrations of over 100 ppm d. W. (dry weight); three species had vanadium concentrations of o...

Journal: :American journal of epidemiology 2014
Xia Wang Taoping Sun Jun Liu Zhilei Shan Yilin Jin Sijing Chen Wei Bao Frank B Hu Liegang Liu

Vanadium compounds have been proposed to have beneficial effects on the pathogenesis and complications of type 2 diabetes. Our objective was to evaluate the association between plasma vanadium levels and type 2 diabetes. We performed a case-control study involving 1,598 Chinese subjects with or without newly diagnosed type 2 diabetes (December 2004-December 2007). Cases and controls were freque...

Journal: :Nutrition and cancer 2005
Rajarshi Sankar Ray Mitali Basu Balaram Ghosh Kartick Samanta Malay Chatterjee

Recent studies indicate the role of the micronutrient vanadium in chemoprevention in many animal models, human cancer cell lines, and also in xenografted human carcinomas of the lung, breast, and gastrointestinal tract. The present studies were undertaken to ascertain the antineoplastic potential of vanadium in a defined model of mammary carcinogenesis. Female Sprague-Dawley rats, at 50 days of...

Journal: :Inorganic chemistry 2012
Henry S La Pierre John Arnold Robert G Bergman F Dean Toste

A series of carbon monoxide, isocyanide, and nitrile complexes of [V(PR(3))(2)(N(t)Bu)(2)][Al(PFTB)(4)], (R = Me, Et) were prepared. [V(PMe(3))(3)(N(t)Bu)(2)][Al(PFTB)(4)], (PFTB = perfluoro-tert-butoxide) reacts with 2,6-xylylisocyanide (CNXyl) or acetonitrile to afford complexes [V(PMe)(2)(N(t)Bu)(2)(CNXyl)][Al(PFTB)(4)] (2) and [V(PMe)(2)(N(t)Bu)(2)(MeCN)][Al(PFTB)(4)] (3). Complex 2 was cry...

2017

Submit Manuscript | http://medcraveonline.com several undesirable side effects associated with the treatment. Vanadium is known to have toxic effects, but believed to have a simultaneous therapeutic use as well [1]. Vanadium is one of the heavy metals that exist in our food and many other products that we use on a daily basis. It is believed that vanadium could be a therapy agent which can lowe...

Journal: :iranian biomedical journal 0
لیلا پیرمرادی leila pirmoradi محمدتقی محمدی mohammad taghi mohammadi اکبر صفائی akbar safaei فخرالدین مصباح fakhardin mesbah غلامعباس دهقانی gholam abbas dehghani

background: data shows vanadium protects pancreatic beta cells (bc) from diabetic animals. whether this effect is direct or through the relief of glucose toxicity is not clear. this study evaluated the potential effect of oral vanadyl sulfate (vanadium) on glycemic status and pancreatic bc of normal and diabetic rats. methods: rats were divided into five groups of normal and diabetic. diabetes ...

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