نتایج جستجو برای: 015 gr doses of nanoparticles

تعداد نتایج: 21184069  

Journal: :iranian journal of applied animal science 2015
f. ghanbari t. ghoorchi p. shawrang h. mansouri n.m. torbati-nejad

this research was performed to compare electron beam (eb) and gamma ray (gr) treatments at doses of 25, 50 and 75 kilo gray (kgy) on ruminal degradation kinetics and in vitro digestibility of sunflower meal (sfm). ionizing radiations of eb and gr had significant effects )p

ژورنال: Medical Laboratory Journal 2011
Mehdinezhad, MH, , Noroozi , R, , zafarzadeh A, ,

Abstract: Background and objectives: There is a great interest in photocatalytic oxidation of contaminants, using ZnO, in recent years. The main objective of this research was to study photocatalytic disinfection of E. coli bacteria as water microbial pollution index, using nano particles of ZnO and a UV lamp in a batch reactor. Material and Methods: In this study, the contaminated water sample...

2015
Pedro Escoll Ismael Ranz Norman Muñoz-Antón Ana van-den-Rym Melchor Alvarez-Mon Carlos Martínez-Alonso Eva Sanz Antonio de-la-Hera

Clinical treatment with glucocorticoids (GC) can be complicated by cytokine-induced glucocorticoid low-responsiveness (GC-resistance, GCR), a condition associated with a homogeneous reduction in the expression of GC-receptor- (GR-) driven anti-inflammatory genes. However, GR level and phosphorylation changes modify the expression of individual GR-responsive genes differently. As sustained IL-1β...

Journal: :Iranian Journal of Science and Technology Transaction A-science 2021

Nano-fertilization is an emerging technology to improve agricultural productivity under diverse ecosystems. Our study was conducted investigate the effects of foliar fertilization silver nanoparticles (AgNPs) on growth, enzyme activities and water use efficiency (WUE) lettuce (Lactuca sativa, L.) drought conditions. A pot culture with 4 AgNPs rates × 2 stress levels in a factorial combination r...

حیاتی رودباری, نسیم, خدا رحمی, پروین, صادقیان, مرجان, پریور, کاظم,

Background and Objective: Iron oxides nanoparticles have numerous applications in medical industry. Nanoparticles are particles with 100 nm in diameter. Despite their various applications, toxic effects of Iron oxide nanoparticles call for supplementary investigations. In this study, the toxic effect of iron oxide nanoparticles on lung development in fetal mice was examined. Materials and Me...

Journal: :journal of mechanical research and application 2012
hamid khorsand nasim kiayee amir hossein masoomparast

in this study chemical method of dissolution-precipitation was applied to produce amorphous silica nanoparticles from rice straw ash (rsa), the waste material of rice cultivation. the morphology, particle size, structure and area of specific surface of synthesized amorphous silica nanoparticles were evaluated using transmission electron microscopy (tem), x-ray diffraction analysis (xrd) and bet...

2014

The present study was carried out on dried chamomile powder to compare yield of extraction, physicochemical characteristics and sensorial properties of extracts obtained from samples irradiated by gamma ray (GR) and electron beam (EB) at 10 kGy and 20 kGy. The results of the present study showed that radiation treatment with 10 kGy and 20 kGy of GR and EB did not affect significantly the yield ...

In this study PtFeCo ternary alloys nanoparticles of three dimentional (3D) rhombus shapes dispersed on graphene nanosheets (PtFeCo/Gr) were successfully prepared and studied as electrocatalysts for oxygen reduction reaction (ORR) in polymer-electrolyte fuel cells. A combination of analytical techniques including powder X-ray diffraction, X-ray photoelectron spectra, inductively coupled plasma-...

2017
Gabriel R S Xavier Ana M Carmona-Ribeiro

Nanostructured particles of polystyrene sulfate (PSS) covered by a cationic lipid bilayer of dioctadecyldimethylammonium bromide (DODAB) incorporated gramicidin D (Gr) yielding optimal and broadened bactericidal activity against both Escherichia coli and Staphylococcus aureus. The adsorption of DODAB/Gr bilayer onto PSS nanoparticles (NPs) increased the zeta-average diameter by 8-10 nm, changed...

2013
Alexandru R Biris Stela Pruneanu Florina Pogacean Mihaela D Lazar Gheorghe Borodi Stefania Ardelean Enkeleda Dervishi Fumiya Watanabe Alexandru S Biris

This work describes the synthesis of few-layer graphene sheets embedded with various amounts of gold nanoparticles (Gr-Au-x) over an Aux/MgO catalytic system (where × = 1, 2, or 3 wt%). The sheet-like morphology of the Gr-Au-x nanostructures was confirmed by transmission electron microscopy and high resolution transmission electron microscopy, which also demonstrated that the number of layers w...

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