نتایج جستجو برای: mn substituted mfi metallosilicate

تعداد نتایج: 79941  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
akram kazemzadeh behruz bayati neda kalantari ali akbar babaluo

polycrystalline mfi zeolite membranes were prepared on α-alumina tubular support by hydrothermal treatments at 413 k. the synthesized zeolite membranes were characterized by xrd, sem and single gas permeation. the influence of hydrothermal treatment steps and the calcination time on the zeolite layer formation were investigated. mfi zeolite membrane prepared by four subsequent hydrothermal trea...

2014
Prashant Kumar Kumar Varoon Agrawal Michael Tsapatsis K. Andre Mkhoyan

Ultrathin MFI-zeolite nanosheets can be packed on porous supports to create molecular sieve membranes. The nanosheets on porous support reduce morphological damage seen in regular MFIzeolite crystals [1]. MFI-zeolite belongs to pentasil family of zeolites where the periodic building unit (PerBU) is composed of 12 interconnected SiO4 tetrahedral (T12) units of 41m2 (D2d) symmetry [2]. Rotation o...

Journal: :Journal of the American Chemical Society 2008
William R McNamara Robert C Snoeberger Gonghu Li James M Schleicher Clyde W Cady Macarena Poyatos Charles A Schmuttenmaer Robert H Crabtree Gary W Brudvig Victor S Batista

A novel class of derivatized acetylacetonate (acac) linkers for robust functionalization of TiO2 nanoparticles (NPs) under aqueous and oxidative conditions is reported. The resulting surface adsorbate anchors are particularly relevant to engineering photocatalytic and photovoltaic devices since they can be applied to attach a broad range of photosensitizers and photocatalytic complexes and are ...

Journal: :Journal of virology 1994
M Robert-Guroff A Louie M Myagkikh F Michaels M P Kieny M E White-Scharf B Potts D Grogg M S Reitz

Neutralization of a chimeric human immunodeficiency virus (HIV) type 1, containing the V3 loop of the MN isolate substituted within the HXB2 envelope, was enhanced up to 20-fold compared with the HXB2 or MN parental isolates by human HIV-positive sera. MN V3 loop-specific monoclonal antibodies were better able to recognize the chimeric virus compared with MN, staining a greater percentage of in...

2011
Yi Liu Yanshuo Li Weishen Yang

A compact and highly b-oriented MFI monolayer was fabricated with a novel phase-segregation-induced selfassembly method. When MFI microcrystals were dispersed uniformly in an appropriate dispersant (sec-butanol) containing a trace amount of binding agent (linoleic acid), these microbuilding blocks were spontaneously self-assembled into a compact monolayer at an air-liquid interface. In particul...

2012
Yanmin Wan Jing Wang Haizhu Zhou Zhidong Hu Xiaonan Ren Jianqing Xu

Previous studies suggested that both the frequency and the mean fluorescence intensity (MFI) of cytokine secreting T cells could be of great value for immunogenicity evaluation of a vaccine. In this study, by constructing epitope-based DNA vaccines encoding a previously identified CD8(+) T cell epitope, we investigated the influence of multiplying epitope copies on both the frequency and the MF...

2018
Gloria-Beatrice Wintermann Jenny Rosendahl Kerstin Weidner Bernhard Strauß Andreas Hinz Katja Petrowski

BACKGROUND Fatigue often occurs as long-term complication in chronically critically ill (CCI) patients after prolonged intensive care treatment. The Multidimensional Fatigue Inventory (MFI-20) has been established as valid instrument to measure fatigue in a wide range of medical illnesses. Regarding the measurement of fatigue in CCI patients, the psychometric properties of the MFI-20 have not b...

Journal: :Journal of the American College of Cardiology 1999
J K Mickelson M N Ali N S Kleiman N M Lakkis T W Chow B J Hughes C W Smith

OBJECTIVES The purpose of this study was to monitor the effects of chimeric 7E3 Fab (ReoPro) on leukocyte and platelet activation and interaction during coronary angioplasty. BACKGROUND Increased expression of CD11b on monocytes and neutrophils promotes their adhesion to endothelial cells, extracellular matrix and smooth muscle cells. Thrombin-activated platelets adhere via P-selectin to mono...

2017
Chao Luo Alex Langrock Xiulin Fan Yujia Liang

The particle pulverization induced by volume change and the disproportionation reaction of Mn to Mn and electrolyte-soluble Mn are two major challenges for Na0.67MnO2 cathodes in Na-ion batteries. Herein, Ni and/or Fe doped Na0.67MnO2 was synthesized to suppress the particle pulverization and disproportionation reaction. The replacement of 33% Mn ions by Ni in Na0.67MnO2 can effectively reduce ...

Journal: :Journal of chemical theory and computation 2006
Eduardo M Sproviero José A Gascón James P McEvoy Gary W Brudvig Victor S Batista

This paper introduces structural models of the oxygen-evolving complex of photosystem II (PSII) in the dark-stable S1 state, as well as in the reduced S0 and oxidized S2 states, with complete ligation of the metal-oxo cluster by amino acid residues, water, hydroxide, and chloride. The models are developed according to state-of-the-art quantum mechanics/molecular mechanics (QM/MM) hybrid methods...

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