نتایج جستجو برای: lanthanumiii oxide nanoparticles

تعداد نتایج: 269168  

2014

The production and use of iron oxide nanoparticles are growing exponentially due to its wide applications in different fields of science and technology. The objective of this study is to synthesize iron oxide nanoparticles, and modification of its surface to make it less toxic. The iron oxide nanoparticles were synthesized by chemical co-precipitation method, and surface modification was done u...

Journal: :مجله بین المللی علوم آزمایشگاهی 0
seyedhossein hekmatimoghaddam ali jebali bahram kazemi mohammadagha ayatollahi

background and aims: although metal and metal oxide nanoparticles are used in different medical applications, they may have considerable toxicity on various cells, such as myocytes. therefore, this study aimed to evaluate the toxicity of the naked and serum-treated silver nanoparticles (ag nps) and magnesium oxide nanoparticles (mgo nps) on the cardiomyocytes. materials and methods: cardiomyocy...

Journal: :physiology and pharmacology 0
mahnaz kesmati department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran maryam konani department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran mozhhgan torabi department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran lotfollah khajehpour department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran

introduction: our previous study has showed that chronic administration of magnesium oxide nanoparticles (mgo np) can reduce anxiety in adult male rat. in this study the effects of mgo np on anxiety induced by morphine withdrawal were investigated in adult male mice. methods: adult male nmri mice (weighing 27 ± 3 g) divided into groups: control, receiving intraperitoneal (i.p.) injection of mgo...

Journal: :iranian journal of pathology 2015
mahboubeh mirhosseini fatemeh barzegari firouzabadi

background & objectives: direct addition of antimicrobial materials to food during food processing is an effective method for controlling microbial contaminants of food and extending the shelf-life of food products. objective of this research was to study the antimicrobial effect of zinc oxide (zno) nanoparticle and potential applications of zno nanoparticles in terms of controling two food...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
mahshad alaei ali morad rashidi iida bakhtiari

in comparison to the previous researches, zro2 nanoparticles with higher surface area (85 m2/g) have been synthesized in this research. the as-prepared zro2 nanoparticles by co-precipitation method were characterized with x-ray diffraction (xrd), scanning electron microscopy (sem) and transmission electron microscopy (tem). the surface area of the sample was characterized by bet method. the eff...

Journal: :transport phenomena in nano and micro scales 2015
m. farahmandjou n. golabiyan

the aluminum oxide materials are widely used in ceramics, refractories and abrasives due to their hardness, chemical inertness, high melting point, non-volatility and resistance to oxidation and corrosion. the paper describes work done on synthesis of α-alumina by using the simple, non-expensive solution combustion method using glycine as fuel.aluminum oxide (al2o3) nanoparticles were synthesiz...

Journal: :journal of nanostructures 2012
a. dehno khalaji k. jafari s. maghsodlou rad

in this paper, cuo nanoparticles  have been synthesized via solid-state thermal decomposition using copper(ii) schiff base complexes as new precursors at 600ºc under air atmosphere for 3 h. surface morphology of the products were characterized by fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd) and scanning electron microscopy (sem).

Journal: :journal of particle science & technology 2015
mehrdad manteghain faeze tari behrooz bozorgi

this paper focused on a simple approach for synthesis of molybdenum oxide (moo3) nanoparticles and reports a facile route for synthesis of such nanoparticles, using microwave irradiation as a homogenous and powerful source of heating, using ethylene glycol as the solvent and heating medium. for more investigations, besides microwave heating, the obtained solutions were also treated by conventio...

2017
Jing Liu Yong Zhao Wei Ge Pengfei Zhang Xinqi Liu Weidong Zhang Yanan Hao Shuai Yu Lan Li Meiqiang Chu Lingjiang Min Hongfu Zhang Wei Shen

The impacts of zinc oxide nanoparticles on embryonic development following oocyte stage exposure are unknown and the underlying mechanisms are sparsely understood. In the current investigation, intact nanoparticles were detected in ovarian tissue in vivo and cultured cells in vitro under zinc oxide nanoparticles treatment. Zinc oxide nanoparticles exposure during the oocyte stage inhibited embr...

Journal: :iranian journal of toxicology 0
هما محسنی کوچ اصفهانی homa mohseni kouchesfehani department of biological sciences, kharazmi university, tehran, iran. سحر کیانی sahar kiani department of stem cells and developmental biology, cell science research center, royan institute for stem cell biology and technology, acecr, tehran, iran. علی اکبر رستمی ali akbar rostami msc student in developmental biology sciences, kharazmi university, tehran, iran. رحمان فاخری rahman fakheri bsc in biology, reproductive biomedicine research center, royan institute for animal biotechnology, acecr, tehran, iran.

background: despite the wide range of applications, there is a serious lack of information on the impact of the nanoparticles on human health and the environment. the present study was done to determine the range of dangerous concentrations of iron oxide nanoparticle and their effects on mouse embryonic stem cells. methods: iron oxide nanoparticles with less than 20 nanometers diameter were enc...

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