نتایج جستجو برای: چارچوب فلز آلی mof

تعداد نتایج: 41750  

Journal: :Journal of the American Chemical Society 2012
Jinhee Park Daqiang Yuan Khanh T Pham Jian-Rong Li Andrey Yakovenko Hong-Cai Zhou

A metal-organic framework (MOF) for reversible alteration of guest molecule adsorption, here carbon dioxide, upon photochemical or thermal treatment has been discovered. An azobenzene functional group, which can switch its conformation upon light irradiation or heat treatment, has been introduced to the organic linker of a MOF. The resulting MOF adsorbs different amount of CO(2) after UV or hea...

Journal: :Chemical science 2015
Arijit Mallick Bikash Garai Matthew A Addicoat Petko St Petkov Thomas Heine Rahul Banerjee

A new Mg(ii) based photochromic porous metal-organic framework (MOF) has been synthesized bearing naphthalenediimide (NDI) chromophoric unit. This MOF (Mg-NDI) shows instant and reversible solvatochromic behavior in presence of solvents with different polarity. Mg-NDI also exhibits fast and reversible photochromism via radical formation. Due to the presence of electron deficient NDI moiety, thi...

Journal: :Angewandte Chemie 2015
Su-Young Moon Yangyang Liu Joseph T Hupp Omar K Farha

A nerve-agent simulant based on a phosphate ester is hydrolyzed using a MOF-based catalyst. Suspensions of MOF-808 (6-connected), a material featuring 6-connected zirconium nodes, display the highest hydrolysis rates among all MOFs that have been reported to date. A plug-flow reactor was also prepared with MOF-808 (6-connected) as the active layer. Deployed in a simple filtration scheme, the re...

Journal: :Angewandte Chemie 2014
Wen-Yang Gao Yao Chen Youhong Niu Kia Williams Lindsay Cash Pastor J Perez Lukasz Wojtas Jianfeng Cai Yu-Sheng Chen Shengqian Ma

Crystal engineering of the nbo metal-organic framework (MOF) platform MOF-505 with a custom-designed azamacrocycle ligand (1,4,7,10-tetrazazcyclododecane-N,N',N'',N'''-tetra-p-methylbenzoic acid) leads to a high density of well-oriented Lewis active sites within the cuboctahedral cage in MMCF-2, [Cu2(Cu-tactmb)(H2O)3(NO3)2]. This MOF demonstrates high catalytic activity for the chemical fixatio...

2008
Song Yang Xiang Guo Hai Hu

We developed an R function named "microarray outlier filter" (MOF) to assist in the identification of failed arrays. In sorting a group of similar arrays by the likelihood of failure, two statistical indices were employed: the correlation coefficient and the percentage of outlier spots. MOF can be used to monitor the quality of microarray data for both trouble shooting, and to eliminate bad dat...

2017
Supaporn Bouson Atiweena Krittayavathananon Nutthaphon Phattharasupakun Patcharaporn Siwayaprahm Montree Sawangphruk

Although metal-organic frameworks (MOFs) or porous coordination polymers have been widely studied, their antimicrobial activities have not yet been fully investigated. In this work, antifungal activity of copper-based benzene-tricarboxylate MOF (Cu-BTC MOF), which is water stable and industrially interesting, is investigated against Candida albicans, Aspergillus niger, Aspergillus oryzae and Fu...

Journal: :Inorganic chemistry 2011
Abraham M Shultz Omar K Farha Debashis Adhikari Amy A Sarjeant Joseph T Hupp SonBinh T Nguyen

From a combination of chiral Mn(salen) struts and the tetratopic ligand tetrakis(4-carboxyphenyl)benzene, a large-pore, noncatenated metal-organic framework (MOF) material, MnSO-MOF, has been synthesized. Following solvent exchange with hydrophobic CHCl(3), treatment of MnSO-MOF with aqueous H(2)O(2) allowed for the selective demetalation of Mn(salen) struts at and near the surface of the cryst...

هدف از این مطالعه بررسی تغییرات غلظت فلزات سنگین، ارزیابی شدت آلودگی و تعیین گونه‌های ژئوشیمیایی غالب فلزات در رسوبات بستر رودخانه سیاهرود در استان مازندران است. برای این منظور در طول این رودخانه و از محل سرچشمه تا محل تخلیه آن به دریای خزر تعداد 15 نمونه رسوب برداشت گردید. ضمن اندازه‌گیری غلظت کل فلزات (Pb, Zn, Cu, Cr, Ni, As, Cd) و برخی خواص فیزیکوشیمیایی (pH، درصد ماده آلی و درصد رس) نمونه‌ه...

Journal: :Archives of surgery 2004
David J Ciesla Ernest E Moore Jeffrey L Johnson Angela Sauaia Clay C Cothren John B Moore Jon M Burch

HYPOTHESIS Multiple organ dysfunction (MOD) within 48 hours of injury is a reversible physiologic response to tissue injury and resuscitation. DESIGN A prospective 10-year inception cohort study ending September 2003. SETTING Regional academic level I trauma center. PATIENTS One thousand two hundred seventy-seven consecutive trauma patients at risk for postinjury multiple organ failure (M...

Journal: :Head & Face Medicine 2007
Rosemary S Shinkai Fabio L Lazzari Simone A Canabarro Márcia Gomes Márcio L Grossi Luciana M Hirakata Eduardo G Mota

BACKGROUND Vertical facial pattern may be related to the direction of pull of the masticatory muscles, yet its effect on occlusal force and elastic deformation of the mandible still is unclear. This study tested whether the variation in vertical facial pattern is related to the variation in maximum occlusal force (MOF) and medial mandibular flexure (MMF) in 51 fully-dentate adults. METHODS Da...

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