نتایج جستجو برای: iron and zinc oxide nanoparticles

تعداد نتایج: 16936121  

Hairy root culture is an effective method to produce secondary metabolites. In fact, hairy roots are genetically and biologically stable and also they are able to produce metabolites without hormones. Chicory (Cichorium intybus L.) is one of the most important medicinal plants with valuable medicinal compounds. In this research, hairy roots were induced by different Agrobacterium rhizogenes str...

Journal: :تحقیقات دامپزشکی 0
حسن مروتی گروه علوم پایه، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران حسین نجف زاده گروه علوم پایه، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران سیده مهسا پورموسوی دانش آموخته بافت شناسی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران علی شهریاری گروه علوم پایه، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران بابک محمدیان گروه پاتوبیولوژی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز- ایران ایرج کاظمی نژاد گروه فیزیک، دانشکده علوم دانشگاه شهید چمران اهواز، اهواز- ایران

background: the most common metal used in the body is iron and since it may produce ros, it could potentially be a dangerous substance. objectives: regarding the side effects of nanomaterials such as nano iron particles and possibility of environmental contamination including air pollution with nanoscale iron particle, this study was designed to compare the effects of conventional iron oxide wi...

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...

ژورنال: بوم شناسی آبزیان 2016
Asghari, Saba, Dakani, Leila, Johari, Seyed Ali, Mansouri, Borhan,

The purpose of this study was to evaluate the effects of zinc oxide nanoparticles and ions on intestinal tissue histopathology of freshwater crayfish (Astacus leptodactylus) under laboratory conditions. We evaluated two concentrations of zinc oxide nanoparticles and zinc ions (0.5 µm/l and 1.0 mg/l) with a control group. After 14 days of exposure to the nanoparticles of zinc oxide and zinc ions...

Journal: :Physical chemistry chemical physics : PCCP 2016
Wojciech Szczerba Jan Żukrowski Marek Przybylski Marcin Sikora Olga Safonova Aleksey Shmeliov Valeria Nicolosi Michael Schneider Tim Granath Maximilian Oppmann Marion Straßer Karl Mandel

The maximum magnetisation (saturation magnetisation) obtainable for iron oxide nanoparticles can be increased by doping the nanocrystals with non-magnetic elements such as zinc. Herein, we closely study how only slightly different synthesis approaches towards such doped nanoparticles strongly influence the resulting sub-nano/atomic structure. We compare two co-precipitation approaches, where we...

Zinc and iron nano-oxides (100 ppb) were promoted the hypericin and hyperforin production in Hypericum perforatum cell suspension culture. High performance liquid chromatography method was used for detectection and identification of hypericin and hyperforin in H. perfuratum cell suspension cultures elicited with different concentrations of zinc and iron nano-oxide (0, 50, 100 and 150 ppb) after...

Farideh Ghadamgahi, Gholamhosein Shahidi Bonjar Masome Mehraban Sang Atash

In this research, the inhibitory effects of silver nanoparticles and zinc oxide nanoparticles,  in vitro, on disease stone fruits bacterial canker caused by Pseudomonas syrigae pv. Syringae and disease bacterial blight caused by Xanthomonas arboricola pv. juglandis, were studied. Different concentrations of nanoparticles were prepared on Mueller Hinton agar medium in two different ways in a com...

Journal: Nanomedicine Journal 2017
Farzane Hoseyni Dowlatababdi Gholamreza Amiri, Maryam Mohammadi Sichani

The antimicrobial effect of metal nanoparticles such as zinc oxide and silver nanoparticles has been taken into great consideration separately during recent years. The useful application of these nanoparticles in the areas of medicine, biotechnology, and professional prevention of microbes motivated us. The aim of this study was to evaluate antibacterial activity properties of silver doped zinc...

Farideh Ghadamgahi, Gholamhosein Shahidi Bonjar Masome Mehraban Sang Atash

In this research, the inhibitory effects of silver nanoparticles and zinc oxide nanoparticles,  in vitro, on disease stone fruits bacterial canker caused by Pseudomonas syrigae pv. Syringae and disease bacterial blight caused by Xanthomonas arboricola pv. juglandis, were studied. Different concentrations of nanoparticles were prepared on Mueller Hinton agar medium in two different ways in a com...

Journal: :journal of nanostructures 2015
k. hedayati

in this research zinc oxide (zno) nano-crystalline powders were prepared by sol-gel method using zinc acetate. the zno nanoparticles were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), ultraviolet-visible (uv-vis), fourier transform infra-red (ft-ir) and energy dispersive x-ray (edx) spectroscopy. the structure of nanoparticles was studied using xrd pattern. the c...

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