نتایج جستجو برای: zinc oxide nano particles

تعداد نتایج: 428694  

2013
Giulia Santomauro Vesna Srot Birgit Bussmann Peter A. van Aken Franz Brümmer Horst Strunk Joachim Bill

Up to now, chemical synthesis routes only provide restricted opportunities for the formation of structured nano particles. In contrast, living microorganisms generate nano materials of well defined shapes by the precise control of biomineralization. Here we reveal new principles for the generation of functional nano materials through the process of biomineralization. We used the detoxification ...

2016
Mohammad Amin Moghadasi Mahmoud Nili-Ahmadabadi Farsad Forghani Hyoung Seop Kim

In general, melting process is not a common method for the production of oxide dispersion strengthened (ODS) alloys due to agglomeration and coarsening of oxide particles. However, vacuum casting process has recently been employed as a promising process to produce micro-scale oxide dispersed alloys. In this paper, we report the process and characterization of in situ formation and uniform dispe...

ژورنال: کومش 2019
Dadmanesh , maryamMaryam , Dadpey , Masoumeh , Farahi , Kiavash, Ghorban , Khodayar ,

Introduction: Industrial and environmental pollution, excessive iron supplementation and blood transfusion are among the factors that may cause iron toxicity. Therefore, it is necessary to identify the mechanisms influencing or protecting against iron toxicity. The present study aimed to investigate the protective effects of quercetin as an antioxidant on hepatotoxicity induced by iron oxide an...

2016
Chao Wang Jianjun Lu Le Zhou Jun Li Jiaman Xu Weijian Li Lili Zhang Xiang Zhong Tian Wang

Zinc oxide nanoparticles (nano-ZnOs) are widely used and possess great potentials in agriculture and biomedicine. It is inevitable for human exposure to these nanoparticles. However, no study had been conducted to investigate the long term effects of nano-ZnOs. This study aimed at investigating effects of nano-ZnOs on development, zinc metabolism and biodistribution of minerals (Zn, Fe, Cu, and...

The use of UHMWPE has attracted the attention of many researchers and industries. The aim of the present work is to fabricate UHMWPE/MoS2-Oxide nano-composites using in-situ polymerization. For this purpose, modified molybdenum disulfide was used. In order to perform the polymerization, a Ziegler-Natta catalytic system, with MoS2-Oxide and magnesium Ethoxide as support, was used. In order to fa...

Journal: :جنگل و فرآورده های چوب 0
الهام نوروزی - بهبود محبی دانشگاه تربیت مدرس

abstract:any effects of wood coating with different compounds as nano-zinc, nano-chitosan, chitosan, silicon oil and flaxseed oil on surface properties as; wood color change, surface roughness and wettability were studied in the current research work. for this purpose, sample boards of beech wood were cut into sizes of 2×10×20cm. the specimens were coated with the noticed coatings and tested fo...

Journal: :تولیدات دامی 0
رعنا جهان بین کارشناس ارشد، گروه علوم دامی، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران پریسا یزدان شناس کارشناس ارشد، گروه علوم دامی، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران مهدی امین افشار استادیار، گروه علوم دامی، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران عبدالله محمدی سنگ چشمه استادیار، گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران حمید ورناصری استادیار، مرکز نهاده های دامی جاهد، تهران، ایران محمد چمنی دانشیار، گروه علوم دامی، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران محمدحسن نظران

the effect of zinc nano-particles (zn- nano- complex) on bull sperm quality after freeze-thawing process studied. ejaculates collected from four holstein bulls twice a week. on the day of semen collection, four ejaculates were pooled and diluted with bioxcell extender containing 0, 10-6, 10-5, 10-4, 10-3, 10-2 molar of zinc nano-complex and frozen. after thawing, sperm motility and motion param...

Journal: :GSC Advanced Research and Reviews 2021

Nowadays, nanotechnology is receiving worldwide recognition due to being its applications in various fields. Medium temperature and eco-friendly methods have shown great potential among nanoparticle synthesis. Many reducing agents are available for the synthesis of ZnO nanoparticles; here we presented a simple solution method development nano crystalline Zinc Oxide particles. acetate dihydrate ...

Journal: :Materials Sciences and Applications 2023

In order to provide ultraviolet barrier, antifungal and antibacterial properties, nano-zinc oxide (ZnO) was added lamellar zirconium phosphate (ZrP). The synthesized via reaction of oxychloride octahydrate phosphoric acid following its chemical modification with Jeffamine nano-ZnO. Diffractometric, morphological, thermal, structural relaxometric evaluations were conducted. Fourier transform inf...

Journal: :iranian journal of hydrogen & fuel cell 2015
mehdi kheirmand abolfath eshghi

reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. the physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

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