نتایج جستجو برای: zinc oxide nanoparticls

تعداد نتایج: 238105  

2013
Daniel T. Organisciak R. M. Darrow C. M. Rapp J.P. Smuts D.W. Armstrong J. C. Lang

PURPOSE Zinc oxide effectively reduces visual cell loss in rats exposed to intense visible light and is known to slow the rate of disease progression in advanced stages of age-related macular degeneration. Our goal was to determine the efficacy of zinc oxide in combination with novel and well-established antioxidants in an animal model of light-induced oxidative retinal damage. METHODS One gr...

Journal: :international journal of environmental research 2014
m.s. sekhavatjou r. moradi a. hosseini alhashemi a. taghinia hejabi

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

Journal: :Nanoscale 2014
Sarah Triboulet Catherine Aude-Garcia Lucie Armand Adèle Gerdil Hélène Diemer Fabienne Proamer Véronique Collin-Faure Aurélie Habert Jean-Marc Strub Daniel Hanau Nathalie Herlin Marie Carrière Alain Van Dorsselaer Thierry Rabilloud

Two different zinc oxide nanoparticles, as well as zinc ions, are used to study the cellular responses of the RAW 264 macrophage cell line. A proteomic screen is used to provide a wide view of the molecular effects of zinc, and the most prominent results are cross-validated by targeted studies. Furthermore, the alteration of important macrophage functions (e.g. phagocytosis) by zinc is also inv...

Journal: :health scope 0
haji omid kalte department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-9397241364 ahmad jonidi jafari department of environmental health engineering, faculty of health, iran university of medical sciences, tehran, ir iran hassan asilian department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran

conclusions application of zinc oxide as the photocatalyst can be effective in the removal process. background one of the important achievements of the past decade was the rapid growth of industries and accordingly production of various chemical compounds. objectives this study presents a combined system of photocatalytic oxidation and absorption solution to remove nitrogen oxides from polluted...

Journal: :international journal of molecular and clinical microbiology 0
fahimeh esfahani department of biology, gorgan branch, islamic azad university, gorgan, iran leila fozouni department of biology, gorgan branch, islamic azad university, gorgan, iran. hamidreza pordeli department of microbiology, gorgan branch, islamic azad university, gorgan, golestan , iran

staphylococcus aureus, as one of the main agentsfor hospital infections,is considered as highly important because they show resistance to a wide range of antibiotics.resistance to selective antibiotics such as vancomycin is a serious problemin the medical community; thus it seems rational to use alternative substances for treating these bacteria.the aim of this study isto investigate the preval...

Journal: :nanochemistry research 0
gunvant sonwane departmen of chemistry, kisan, arts, commerce and science college parola, dist-jalgaon, india. vilas mahajan departmen of chemistry, kisan, arts, commerce and science college parola, dist-jalgaon, india.

in this study, the ultrasonic, photocatalytic and sonophotocatalytic degradation of organics in textile industrial effluent was studied using zno nano catalyst, zno nano catalyst was synthesized by using sol-gel method. the structure and morphology of the catalyst were investigated using scanning election microscopy (sem), electron dispersive x-ray spectroscopy (eds) and x-ray diffraction patte...

Journal: :journal of dentistry, tehran university of medical sciences 0
ramin mosharraf professor, dental material research center and department of prosthodontics, school of dentistry, isfahan university of medical sciences, isfahan, iran. sepideh zare private practice, isfahan, iran.

an important factor that interferes with the bonding between the root canal wall and resin cement is the root canal sealer remnant. there is controversy about the effect of eugenol-containing sealers on the bond strength between resin cements and fiber post. the aim of this study was to evaluate the effect of the type of endodontic sealer on the bond strength of frc posts cemented with resin ce...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nowadays, nanoscale innovations in the forms of pathogen detection, active packaging, antimicrobial packaging and barrier formation are poised to elevate food packaging to new heights. antimicrobial nanocomposite ldpe films containing zno nanoparticles at different concentrations (e.g. 1%, 3%, 5%  and 3%  nano-zno pulse 10% polyethylene grafted maleic anhydride (pe-g-ma), w/w pure ldpe), were p...

Journal: :international journal of nano dimension 0
n. mastali department of chemistry, azad university, tehran north branch, tehran, iran h. bakhtiari department of chemistry, azad university, tehran north branch, tehran, iran

in this study, tio2 and zno nanofilms were prepared by sol-gel spin-coating method. nanofilms were characterized by x-ray diffraction (xrd), energy dispersive analysis of      x-ray (edx), scanning electron microscopy (sem) and field emission scanning electron microscopy (fe-esm). structural and morphological properties of nanofilms were investigated. the average crystalline size of tio2 and zn...

Journal: :journal of ultrafine grained and nanostructured materials 2014
hajar poortavasoly majid montazer

here, in situ synthesis of nano zinc oxide, along with aminolysis of polyester fabric, has simultaneously been carried out by using triethanol amine (tea) and zinc acetate. the zno nano particles (nps) were formed and stabilized on the fabric surface by amine compound at 130 °c for 1 h. the synthesis of nano zno particles on the polyester fabric were confirmed by x-ray diffraction (xrd) pattern...

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