نتایج جستجو برای: zinc oxide nanoparticles

تعداد نتایج: 330031  

Journal: :تولید گیاهان زراعی 0
فریده بهبودی فارغ التحصیل کارشناسی ارشد گروه زراعت، دانشگاه تهران ایرج اله دادی دانشیار گروه زراعت، دانشگاه تهران ابراهیم محمدی گل تپه استاد گروه بیماری شناسی گیاهی، دانشگاه تربیت مدرس، تهران

in order to study the effect of vermicompost containing copper oxide and zinc oxide nanoparticles on was beans, in an experiment factorial were done based on a randomized complete block design in three replications. the experiment treatment were as follows: nanoparticles in 4 levels (0, 0.4, 0.8 and 1.2 g/kg weight of substrate), vermicompost in 3 levels (2.5, 5 and 7.5 g/kg-1 weight of substra...

Journal: :avicenna journal of medical biotechnology 0

background: antibiotic resistant bacteria can be considered as a main problem in infection management. zinc oxide nanoparticles (zno nps), individually or in combination with antibiotics, can be considered as good candidates for struggling against drug resistant bacteria. methods: in this study, zinc oxide nanoparticles were synthesized using sol-gel method in low temperature as a cost effectiv...

Journal: :nanomedicine journal 0
farzane hoseyni dowlatababdi falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) gholamreza amiri falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) maryam mohammadi sichani falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

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...

Journal: :international journal of advanced biological and biomedical research 2014
farideh ghadamgahi masome mehraban sang atash gholamhosein shahidi bonjar

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...

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...

2016
Elham Isaei Shahla Mansouri Fereshteh Mohammadi Sadegh Taheritarigh Zohreh Mohammadi

BACKGROUND Antibiotic resistant bacteria can be considered as a main problem in infection management. Zinc oxide nanoparticles (ZnO NPs), individually or in combination with antibiotics, can be considered as good candidates for struggling against drug resistant bacteria. METHODS In this study, Zinc oxide nanoparticles were synthesized using sol-gel method in low temperature as a cost effectiv...

2017
Mohamed Ibrahim Shaalan Magdy Mohamed El-Mahdy Sarah Theiner Mansour El-Matbouli Mona Saleh

BACKGROUND Antibiotic resistance is a global issue that threatens public health. The excessive use of antibiotics contributes to this problem as the genes of antibiotic resistance can be transferred between the bacteria in humans, animals and aquatic organisms. Metallic nanoparticles could serve as future substitutes for some conventional antibiotics because of their antimicrobial activity. The...

2015
Swati S. Kulkarni Mahendra D. Shirsat

In the recent era zinc oxide nanoparticles attracted the researchers due to their unique properties and applications in optoelectronic devices. Zinc oxide nanoparticles are the semiconductor materials having band gap energy 3.37 eV and very large excitation binding energy (60meV) at room temperature. Also it is non-toxic, environmental friendly and transparent to visible range of spectrum. In t...

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...

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...

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