نتایج جستجو برای: zinc oxide nanoparticle

تعداد نتایج: 265338  

Journal: :علوم گیاهان زراعی ایران 0
علیرضا فتحی دانشجوی دکتری گروه زراعت و اصلاح نباتات، دانشگاه شاهرود، سمنان مرتضی زاهدی استادیار گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی دانشگاه صنعتی اصفهان شهرام ترابیان دانشجوی دکتری، دانشکدۀ کشاورزی، دانشگاه تبریز

this experiment was conducted in order to evaluate the effects of foliar application of ordinary and nano-particles of zinc oxide on the response of corn to salinity. treatments included two corn genotypes (seed mass and sc 704), three spray levels (zinc oxide, nano-sized zinc oxide, and a spray of water treatment) and three salinity levels (0, 75 and 150 mm nacl). shoot dry matter was decrease...

Introduction: Recent findings revealed the biological effects of iron oxide nanoparticles on the central nervous system. Moreover, the brain cholinergic system plays a role in the modulation of anxiety behaviors. Therefore, this study aimed to evaluate the role of dorsal hippocampal muscarinic cholinergic receptors of the CA1 area on anxiety induced by iron oxide nanoparticles in adult male rat...

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...

2012
Marie-Alexandra Neouze Marco Litschauer Michael Puchberger Johannes Bernardi

ABSTRACT A newly arising challenge in the field of nanoparticle research concerns the control and the understanding of the interparticle interactions and interparticle properties. This should allow the development of materials based on nanoparticle assemblies which represents a great opportunity to exploit nanoparticle collective properties. Although some nanoparticle networks have been reporte...

2014
M. Kheirandish

In this experiment Polystyrene/Zinc-oxide (PS/ZnO) nanocomposite fibers were produced by electrospinning technique using limonene as a green solvent. First, the morphology of electrospun pure polystyrene (PS) and PS/ZnO nanocomposite fibers investigated by SEM. Results showed the PS fiber diameter decreased by increasing concentration of Zinc Oxide nanoparticles (ZnO NPs). Thermo Gravimetric An...

آستارایی, علیرضا, لکزیان, امیر, پنام, زهرا,

This study was conducted to assess the effects of zinc oxides (nano and ordinary) and Glomus intraradices fungi on yield concentration of micronutrients in green bean plant, by employing a factorial, completely randomized design, and three replications, under greenhouse conditions. The experimental factors included two levels of Glomus intraradices (with and without inoculation), two types of z...

Divsalr, Adele, Jangi, Mahnaz , Mohammadgholi, Azadeh,

In this study, the extract of coffee powder for green synthesis of zinc oxide nanoparticles has been used because it is compatibility with the environment and it does not produce any toxic substances in the reaction. Then, the interaction of zinc oxide nanoparticles with calf thymus DNA with various spectroscopic methods such as UV-Visible, fluorescence and circular dichroism (CD) techniques wa...

2012
Ping Wang Dong-yan Liu Dong-sheng Li

We report the nanostructures and gas-sensing properties of Zinc oxide nanosheets prepared by hydrothermal method. In particular, needlelike Zinc oxide was also prepared for comparison. The morphology and structural properties were investigated using X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). Subsequent gas-sensing measurement between ...

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