نتایج جستجو برای: 5 nano

تعداد نتایج: 1262516  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده شیمی 1391

we used dbsa and nano-magnetic for the synthesis of amido alkylnaphtols.

Objective(s): Based on our previous studies about nano-ZnO effects on physiological behaviors, in this study we have investigated the effects of anxiolytic doses of nano-ZnO on electrocardiogram (ECG) sings changes in the restraint and non-restraint ovariectomized (OVX) female rats. Methods: Animals (160-180 g) were divided into: control (non-OVX + saline) and OVX groups that received: s...

Journal: :Nano Biomedicine and Engineering 2022

In this study, graft nano co-polymer was synthesized by esterification method of phthalic anhydride and glycerol. Nano polymer diagnosed infrared spectroscopy FT-IR, atomic force microscopy technique (AFM), X-ray diffraction analysis (XRD) differential scanning calorimetry (DSC). Tendency fabricated nano-polymer to adsorb Eosin yellow from aqueous solutions evaluated. The average size the heigh...

2011
Martin Roursgaard Keld A. Jensen Steen S. Poulsen Niels-Erik V. Jensen Lars K. Poulsen Maria Hammer Gunnar D. Nielsen Søren T. Larsen

This study investigated the acute and subchronic inflammatory effects of micrometer-size (micro-size) and nanometer-size (nano-size) particles after intratracheal (i.t.) installation in mice. The role of the type of compound, polymorphism, and size of the particles was investigated. Studied compounds were the two micro-size reference quartzes, SRM1878a and DQ12, a micro- and nano-size rutile ti...

Journal: :mechanics of advanced composite structures‎ 2015
s. alalhessabi s.a. manafi e. borhani

in this study, aluminum (al) matrix reinforced with micro-particles (30 µm) and nano-particles (50 nm) boron carbide (b4c) were used to prepare al-2.5%wt., b4c nano-composite and micro-composite, respectively, using mechanical alloying method. the mixed powders were mechanically milled at 5, 10, 15 and 20 hrs. the xrd results indicated that the crystallite sizes of both the micro-composite and ...

Journal: :Applied and environmental microbiology 1986
D A Bazylinski E Palome N A Blakemore R P Blakemore

One host (Rana catesbiana)-associated and two free-living mesophilic strains of bacteria with violet pigmentation and biochemical characteristics of Chromobacterium violaceum were isolated from freshwater habitats. Cells of each freshly isolated strain and of strain ATCC 12472 (the neotype strain) grew anaerobically with glucose as the sole carbon and energy source. The major fermentation produ...

Journal: :Plants 2023

The increasing use of nanofertilizers in modern agriculture and their impact on crop yield pest management require further research. In this study, the effects nano-Fe, -Zn, -Cu (which are synthesized based nanochelating technology), urea (N) fertilizers antioxidant activities wheat plants (cv. Chamran), green aphid Schizaphis graminum (Rondani) investigated. authors observed highest levels phe...

2014
Maryam Lale Ataei Ali Reza Ebrahimzadeh-bideskan

OBJECTIVES The aim of this study was to investigate the effects of nano-silver and garlic administration during pregnancy on neuron apoptosis in rat offspring hippocampus. MATERIALS AND METHODS FIFTY PREGNANT WISTAR RATS WERE RANDOMLY DIVIDED INTO FIVE GROUPS: 1- nano-silver (N.S) group; 30 mg/kg of N.S treated via gavage. 2- Control (C) group, administrated with distilled water via gavage. 3...

2014
Lu Peng Xiao He Peng Zhang Jing Zhang Yuanyuan Li Junzhe Zhang Yuhui Ma Yayun Ding Zhenqiang Wu Zhifang Chai Zhiyong Zhang

Ceria nanoparticles (nano-ceria) have recently gained a wide range of applications, which might pose unwanted risks to both the environment and human health. The greatest potential for the environmental discharge of nano-ceria appears to be in their use as a diesel fuel additive. The present study was designed to explore the pulmonary toxicity of nano-ceria in mice after a single exposure via i...

Journal: :international journal of nano dimension 0
pragnesh n. dave department of chemistry, kskv kachchh university, bhuj gujarat india parvin n. ram department of chemistry, kskv kachchh university, bhuj gujarat india shalini chaturvedi department of chemistry, kskv kachchh university, bhuj gujarat india

composite solid propellants were prepared with and without nano-alloys (ti-co, ti-ni, ti-zn), where nano-alloys used as catalyst. these nano-alloys are prepared by hydrazine reduction method. catalytic properties of these nanomaterials were measured on ammonium perchorate/hydroxyterminatedpolybutadiene propellant by thermogravimetery analysis and differential thermal analysis. both experimental...

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