نتایج جستجو برای: fe2 nps

تعداد نتایج: 14200  

2017
Pokhraj Ghosh Shengda Ding Rachel B. Chupik Manuel Quiroz Chung-Hung Hsieh Nattami Bhuvanesh Michael B. Hall Marcetta Y. Darensbourg

Department of Chemistry, Texas A & M Un E-mail: [email protected] Department of Chemistry, Tamkang Univer † Electronic supplementary informati spectroscopic, additional electrochemic crystallographic data (CIF) from the s [Ni2–Fe2] , [Ni2–Fe] , and computation crystallographic data for the complexes [ deposited in the Cambridge Crystallog (CCDC 1045461), [Ni2–Fe2] 2+ (CCDC 104 For ESI and ...

2004
V. Ivanov

The combination of microbial reduction and further microbial oxidation of iron was applied to the treatment of food-processing wastewater and recovery of ammonium. Fe2+ ions were formed by ironreducing bacteria under anaerobic conditions. Ammonium was recovered by co-precipitation with negatively charged iron hydroxides produced during oxidation of Fe2+ by iron-oxidizing bacteria under microaer...

Journal: :Voprosy meditsinskoi khimii 1999
O V Vasil'eva O B Liubitskiĭ T A Gus'kova R G Glushkov O S Medvedev Iu A Vladimirov

The effect of arbidol and its structural analogues on the process of lipid peroxidation in phospholipid liposomes induced by Fe2+ has been investigated. It was shown that the antioxidant efficacy of arbidol and its derivatives is lower than that of alpha-tocopherol by two or three times. It was suggested that the mechanism antioxidant action of the arbidol and its structural analogues consists ...

2014
Urszula Tylus Qingying Jia Kara Strickland Nagappan Ramaswamy Alexey Serov Plamen Atanassov Sanjeev Mukerjee

Detailed understanding of the nature of the active centers in non-precious-metal-based electrocatalyst, and their role in oxygen reduction reaction (ORR) mechanistic pathways will have a profound effect on successful commercialization of emission-free energy devices such as fuel cells. Recently, using pyrolyzed model structures of iron porphyrins, we have demonstrated that a covalent integratio...

Journal: :Dalton transactions 2007
Jhimli Bhattacharyya Suranjana Das Subrata Mukhopadhyay

[Fe2(micro-O)(phen)4(H2O)2]4+ (1) (Fig. 1, phen = 1,10-phenanthroline) equilibrates with [Fe2(micro-O)(phen)4(H2O)(OH)]3+ (2) and [Fe2(micro-O)(phen)4(OH)2]2+ (3) in aqueous solution in the presence of excess phen, where no phen-releasing equilibria from 1, 2 and 3 exist. 1 quantitatively oxidizes ascorbic acid (H2A) to dehydroascorbic acid (A) in the pH range 3.00-5.50 in the presence of exces...

Journal: :The Biochemical journal 1984
J M Gutteridge

The stimulatory effect of ferrous salts on the peroxidation of phospholipids can be enhanced by EDTA when the concentration of Fe2+ in the reaction is greater than that of EDTA. Hydroxyl-radical scavengers do not inhibit peroxidation until the concentrations of Fe2+ and EDTA in the reaction are equal. Lipid peroxidation is then substantially initiated by hydroxyl radicals derived from a Fenton-...

2001
Marcin Kruszewski Jolanta Zaim Iwona Gràdzka Irena Szumiel

Bleomycin (BLM) is an anticancer antibiotic isolated from the supernatant of Streptomyces verticillus culture [21]. The cytotoxic activity of BLM depends on generation of singleand double-strand breaks in DNA (for review, see [16]). Indispensable for this BLM activity is the presence of metal ions, specifically Fe2+. Fe2+ BLM complexed with O2 or Fe 3+ BLM complexed with H2O2 leads to formation...

2011
Vasant Naidu Hongguo Zhang Hayley Spiers Jun Yao Gavin Vaughan Ann Terry

Nano-particles of polycrystalline Zn Fe2 O4 are prepared using sol-gel method with Ni, and Sm. They are obtained as dried gel after the successful chemical reaction of their respective metal nitrate solutions in the midst of citric acid as catalyst. Synthesis of materials is confirmed using XRD from the report of single phase polycrystalline ferrite material. The magnetic properties of Zn-ferri...

2010
Željko Bošković

In Bošković (2008a) I argue that there is a fundamental structural difference in the traditional Noun Phrase (TNP) of English and article-less languages like SC, which can be captured if DP is not even present in the TNPs in (2) (see also Fukui 1988, Corver 1992, Zlatić 1997, Chierchia 1998, Cheng and Sybesma 1999, Lyons 1999, Willim 2000, Baker 2003, among others for no-DP analyses of at least...

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