نتایج جستجو برای: removal of pb2

تعداد نتایج: 21171987  

ژورنال: طلوع بهداشت یزد 2016
افشارنیا, مجتبی, سجادی, سیدعلی, شمس, محمود, قاسمی, مهدی,

Lead (Pb2+) Removal from Synthetic Aqueous Solution Using Food Waste Ash AfsharniaM (Ph.D)1, Shams M (M.Sc)2, Sajjadi SA (Ph.D)1, Qasemi  M (M.Sc)3 1. Assistant Professor, Department of Environmental Health Engineering, ,Gonabad University of Medical Sciences, Gonabad, Iran. 2. Instructor, Department of Environmental Health Engineering, Gonabad University of Medical Scienc...

2017
Benjamin E. Nilsson Aartjan J. W. te Velthuis Ervin Fodor

The RNA genome of influenza A viruses is transcribed and replicated by the viral RNA-dependent RNA polymerase, composed of the subunits PA, PB1, and PB2. High-resolution structural data revealed that the polymerase assembles into a central polymerase core and several auxiliary highly flexible, protruding domains. The auxiliary PB2 cap-binding and the PA endonuclease domains are both involved in...

Journal: :Acta crystallographica. Section F, Structural biology communications 2014
Toshiharu Tsurumura Hao Qiu Toru Yoshida Yayoi Tsumori Hideaki Tsuge

In the last hundred years, four influenza pandemics have been experienced, beginning with that in Spain in 1918. Influenza A virus causes severe pneumonia and its RNA polymerase is an important target for drug design. The influenza A (H1N1) virus has eight ribonucleoprotein complexes, which are composed of viral RNA, RNA polymerases and nucleoproteins. PB2 forms part of the RNA polymerase compl...

2012
Jingjing Wang Yipeng Sun Qi Xu Yuanyuan Tan Juan Pu Hanchun Yang Earl G. Brown Jinhua Liu

H9N2 influenza viruses have been circulating worldwide in multiple avian species and have repeatedly infected humans to cause typical disease. The continued avian-to-human interspecies transmission of H9N2 viruses raises concerns about the possibility of viral adaption with increased virulence for humans. To investigate the genetic basis of H9N2 influenza virus host range and pathogenicity in m...

Journal: :Journal of virology 1998
S K Biswas P L Boutz D P Nayak

Influenza virus nucleoprotein (NP) is a critical factor in the viral infectious cycle in switching influenza virus RNA synthesis from transcription mode to replication mode. In this study, we investigated the interaction of NP with the viral polymerase protein complex. Using coimmunoprecipitation with monospecific or monoclonal antibodies, we observed that NP interacted with the RNP-free polyme...

2004
Gloria D. Coronado Beti Thompson Larkin Strong William C. Griffith Ilda Islas

Schizophrenia: A Plausible Neurobiologic Connection In their article in the April issue of EHP, Opler et al. (2004) raise the intriguing possibility that prenatal exposure to the ubiquitous developmental neurotoxicant lead (Pb2+) may be associated with schizophrenia, an adult psychiatric disease. Although the study has certain limitations that the authors discussed, it brings to light the possi...

Journal: :Chemical Engineering Journal 2022

Water is not only a valuable resource that needed to sustain life, but also an essential ingredient in many engineering processes, which unavoidably leads large volumes of water being contaminated. To achieve safe discharge and recover “pollutants”, better performing sorbents are rapidly efficiently decontaminate while generating minimal secondary wastes. Bio-sorbents derived from pomelo peel w...

Journal: :Journal of the American Chemical Society 2005
Ji Young Kwon Yun Jung Jang Yoon Ju Lee Kwan Mook Kim Mi Sook Seo Wonwoo Nam Juyoung Yoon

A new fluorescent sensor based on rhodamine B for Pb2+ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb2+ over other metal ions examined in acetonitrile. Upon the addition of Pb2+, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn2+. The signal transduction occurs via of reversible CHEF (chelation-e...

Journal: :Analytical and bioanalytical chemistry 2007
Fangyong Yan Sanford Asher

We quantitatively modeled the volume phase transition of a hydrogel containing a crystalline colloidal array with a crown ether ligand which binds Pb2+. The hydrogel volume response and the wavelength diffracted depend on the Pb2+ concentration and on both the ionic strength and the valence of the nonbinding ionic species. We successfully modeled the response of this hydrogel Pb2+ sensor to ion...

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