نتایج جستجو برای: hydrogen peroxide and environment

تعداد نتایج: 16902844  

Journal: :jundishapur journal of microbiology 0
pavan kumar pindi department of microbiology, palamuru university, andhra pradesh, india; department of microbiology, palamuru university, andhra pradesh, india. tel: +91-9849327029, fax: +84-52221020 rebba raja srinath department of microbiology, palamuru university, andhra pradesh, india athinarapu shiva shanker department of microbiology, palamuru university, andhra pradesh, india

background identification of novel pathogenic bacteria always has a crucial role in clinical microbiology to defeat uncontrolled diseases. objectives sample preparation platform has been developed for rapid and simple detection of infectious organisms from the point of care diagnostics and molecular manipulation by using three novel genomic dna isolation protocols. materials and methods most of...

Journal: :iranian journal of biotechnology 2007
saeed soltanali yaser ziaie-shirkolaee

the effect of the operating conditions (temperature, time, ph, enzyme level and pulp consistency) used in the enzymatic step of a xp (cartazyme-hydrogen peroxide) sequence for bleaching kraft pulp from bagasse on various properties of the resulting pulp and paper sheet products was studied. the quality of bagasse used, was examined by its yield, brightness,viscosity and the kappa number. finall...

Journal: :international journal of nanoscience and nanotechnology 2013
s. l. sharifi h. r. shakur a. mirzaei m. h. hosseini

in this scientific research work we report a novel method to synthesis co3o4 nanoparticles via calcinations of cobalt hydroxide which can be conveniently prepared by the co(no3 )2.6h2o with different reactants. in order to study the effect of calcination temperature on structure and morphology of the nanoparticles, the calcinations take place at various temperatures (at 300°c, 500°c and 700°c)....

Journal: :Nucleic acids research 1993
G N Rao B Lasségue K K Griendling R W Alexander B C Berk

We found previously that stimulation of c-fos and c-myc mRNA expression are early events in hydrogen peroxide-induced growth in rat aortic smooth muscle (RASM) cells. In the present study, we investigated the role of phospholipase A2 (PLA2) and protein kinase C (PKC) in mediating hydrogen peroxide-induced c-fos mRNA expression in RASM cells. Mepacrine and p-bromophenacylbromide, potent inhibito...

Journal: :The Journal of antimicrobial chemotherapy 2012
Ezra Linley Stephen P Denyer Gerald McDonnell Claire Simons Jean-Yves Maillard

Hydrogen peroxide is extensively used as a biocide, particularly in applications where its decomposition into non-toxic by-products is important. Although increasing information on the biocidal efficacy of hydrogen peroxide is available, there is still little understanding of its biocidal mechanisms of action. This review aims to combine past and novel evidence of interactions between hydrogen ...

ژورنال: طب مکمل 2021

Introduction: Oxidative stress causes DNA damage and apoptosis and leads to cardiovascular disease. The aim of this study was to evaluate the effect of a course of aerobic exercise with hypoallergenic supplement of Tribulus terrestris on mitochondrial oxidative stress markers of cardiac tissue in rats toxicated with hydrogen peroxide. Method: To implementation of this experimental research, 4...

2016
Zhenjun Song Hu Xu

The hydrogen peroxide dissociation on MgO(001) films deposited on Mo(001) surface is investigated by employing periodic density-functional theory methods. The pristine MgO(001) surface showing chemical inertness prefers the weak adsorbing molecular configuration and is extremely difficult to react with hydrogen peroxide. As far as we know, energetically favorable decomposition state of hydrogen...

Journal: :Biological & pharmaceutical bulletin 2001
S Furusawa E Kimura S Kisara S Nakano R Murata Y Tanaka S Sakaguchi M Takayanagi Y Takayanagi K Sasaki

Doxorubicin (DOX) is an anthracycline drug widely used in chemotherapy for cancer patients, but it often gives rise to multidrug resistance in cancer cells. The purpose of this work was to study the effect of hydrogen peroxide in DOX-sensitive mouse P388/S leukemia cells and in the DOX-resistant cell line. Hydrogen peroxide induced a significant increase in dose- and time-response cell death in...

Background & Aims: Apoptosis is organized cellular death, induced by various physiological and pathological factors. Therefore, the purpose of this study is to investigate the effect of continuous training on rate of Caspase3, BAX and BCL-2 proteins in rats vascular by induced poisoning due to various doses of hydrogen peroxide. Materials & Methods: 40 mature male wistar rats were randomly ass...

0. Moradi A. Nozad Golikand K. M. Taghi-Ganji M. Ghannadi Maragheh4 M. Yari Sedaghat Sharehjini

A new method for the synthesis of water soluble Polyaniline (PANi) using Hemin Chloride (H.C) in the presence of hydrogen peroxide (H.P) is presented. Hemin chloride is an effective catalyst for the oxidative polymerization of aniline in the presence of hydrogen peroxide at room temperature. The UV- Vis absorption spectra of the product show a distinct absorption peak at 430 nm in pH 4.0 b...

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