نتایج جستجو برای: nano zinc oxide

تعداد نتایج: 284081  

Journal: :به زراعی کشاورزی 0
محمود رضا تدین دانشیار گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران (نویسندۀ مسئول مکاتبات *) سعید نوروزی کارشناس ارشد، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران

effect of nano titanium oxide, nano zinc and multiwall carbon nano tube on yield and yield components of green gram was carried out in kohkiloyeh-boyrahmad province, iran with 30 degrees 45' n and 50 degrees 44' in 2013 growing seasons. the experiment was arranged as factorial in a completely randomize block design with three replications, treatments including: four concentrations (ze...

Journal: :زیست شناسی جانوری تجربی 0
کاظم پریور استاد گروه زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران نسیم حیاتی رودباری استادیار گروه زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران علیرضا بدیعی دانشیار دانشکده شیمی، دانشگاه تهران رقیه تقی زاده حاجی آقا دانشجوی کارشناسی ارشد زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران

abstract increase in the use of nano zinc oxide in medicine, manufacturing cosmetic products and research, have raised the questions about their toxicity. zinc has direct role in growth, maturation and ovulation through influence on production of estradiol and progesterone. in this study the effects of nano zinc oxide on oogenesis of adult nmri mouse strain have been investigated. the adult fem...

Dorost ghoal M Kesmati M Malekshahi Nia H Najafzadeh Varzi H Teymuri Zamaneh H

Background: Physical activity has a range of effects on male reproductive function depending upon the intensity and duration of the activity. Materials and Methods: In order to investigate the protective effects of nano zinc oxide on endurance exercise induced testicular oxidative stress, 30 adult male Wistar rats were randomly divided into the following groups: control group (n=10); exercised ...

2017
Chao Wang Ligen Zhang Weipeng Su Zhixiong Ying Jintian He Lili Zhang Xiang Zhong Tian Wang

The objective of this study was to evaluate effects of zinc oxide nanoparticles (nano-ZnOs) as a substitute for colistin sulfate (CS) and/or zinc oxide (ZnO) on growth performance, serum enzymes, zinc deposition, intestinal morphology and epithelial barrier in weaned piglets. A total of 216 crossbred Duroc×(Landrace×Yorkshire) piglets weaned at 23 days were randomly assigned into 3 groups, whic...

In this study, nano-ZnO particles were deposited on mild steel sheets from an acidic zinc bath. These particles were synthesized by using an auto combustion technique. The effect of concentration of nano- ZnO particles on the corrosion behavior of depositions was investigated. The results of salt spray tests and electrochemical measurements showed that corrosion resistance is improved by additi...

2010
Manuel Guzmán Núria Agulló Salvador Borrós Ramon Llull

Despite its superior characteristics, there is an increased concern about the environmental effects that zinc oxide causes and over the years lower levels of zinc have been tried in order to decrease its impact and to minimise the production costs. Different approaches have been considered for reducing zinc levels. Between all the alternatives proposed, the use of nano–sized ZnO particles with ...

Journal: :international journal of nanoscience and nanotechnology 2014
s. rahmani m. mahmoudifard m. safi

ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. the importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. up to now, different materials such as z...

Zinc oxide nanoparticles have been synthesized by chemical reaction method.  Polyvinyl alcohol (PVA) composite film filled with nanometric, monodispersed zinc oxide nano particles prepared by PVA solution and nanozinc oxide. Polymer blend with ZnO nanoparticle composite film has prepared by casting technique.  The property of nano composites depends greatly on the chemistry of polymer matrices....

Zinc oxide nanoparticles have been synthesized by chemical reaction method.  Polyvinyl alcohol (PVA) composite film filled with nanometric, monodispersed zinc oxide nano particles prepared by PVA solution and nanozinc oxide. Polymer blend with ZnO nanoparticle composite film has prepared by casting technique.  The property of nano composites depends greatly on the chemistry of polymer matrices....

ژورنال: پوست و زیبایی 2021
Hassanzadeh Nemati, Nahid , Khateri Roodbordeh, Malahat ,

Background and Aim: Lesions of the skin can impair its vital function to protect humans against external pathogens. Therefore, producing a suitable wound dressing to repair injuries is always one of the challenges of researchers. The present study aims to Synthesize a hydrogel film for wound dressing applications. Methods: In this research, a hydrogel film of polyvinyl alcohol / hyaluronic a...

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