نتایج جستجو برای: nano zinc

تعداد نتایج: 122757  

2017
Swati Rawat Suzanne A. Apodaca Wenjuan Tan Jose R. Peralta-Videa Jorge L. Gardea-Torresdey

Abstract The effects of engineered nanoparticles (ENPs) in living organisms are described in a myriad of articles. Most of the literature on this topic is devoted to plants of different gender and species. Studies from laboratories and greenhouse facilities highlight effects on chlorophyll production, plant growth, stress enzyme activities, phytotoxicity, cytotoxicity, and genotoxicity. With fe...

2018
Mei Wang Ai-Dong Li Ji-Zhou Kong You-Pin Gong Chao Zhao Yue-Feng Tang Di Wu

ZnO nano-clips with better monodispersion were prepared successfully using zinc acetate hydrate (Zn(OAc)2·nH2O) as Zn source and ethylene glycol (EG) as solvent by a simple solution-based route-polyol process. The effect of solution concentration on the formation of ZnO nano-clips has been investigated deeply. We first prove that the 0.01 M Zn(OAc)2·nH2O can react with EG without added water or...

2012
Laila M. Faddah Nayira A. Abdel Baky Nouf M. Al-Rasheed Nawal M. Al-Rasheed Amal J. Fatani Muhammad Atteya

BACKGROUND Nanoparticles are small-scale substances (<100 nm) with unique properties. Therefore, nanoparticles pose complex health risk implications. The objective of this study was to detect whether treatment with quercetin (Qur) and/or arginine (Arg) ameliorated nephrotoxicity induced by two different doses of nano zinc oxide (n-ZnO) particles. METHOD ZnO nanoparticles were administered ora...

2006
Michael Lee Jong-In Hahm

Sulfur-/sulfate-reducing bacteria (SRB) have been used for remediation of metalcontaminated ground water and soil through the precipitation of metal sulfides. These metal sulfides range from 3 nm to 3 μm in diameter. Of specific interest to this research are zinc sulfide nanoparticles (ZnS NPs) produced by SRBs with a diameter of ~3 nm. These ZnS NPs can be used as catalysts to grow nano-wires,...

Journal: :international journal of nanoscience and nanotechnology 2011
m. ranjbar s. h. mahmoudi najafi n. shahsavan m. yousefi

the study describes the synthesis and characterization of zinc(ii) minoxidil nanocomposite (1). the reaction between zinc(ii) acetate, minoxidil, {c9h15n5o=minoxidil=(2,4-diamino-6-piperidine-1-yl) pyrimidine n-oxide)} as a ligand and ki as bridging agent, in methanol at 60°c leads to the formation of nano-sized zn(ii) minoxidil nanocomposite, 1. characterization of (1) was carried out by eleme...

2014
Mahnaz Kesmati Mozhgan Torabi

INTRODUCTION Today Nano-medicine tries to produce new drugs to reduce the dosage and side effects of their conventional forms. According to the interaction between zinc and opioidergic system activity, this study has investigated the effect of new kind of zinc supplement, nano zinc oxide (nZnO), in compared to its conventional form (cZnO), in presence and absence of opioidergic system activity ...

Akbar Zendehnam Fatemeh Hassanpour Kambiz Hedayati,

In this research zinc sulfide (ZnS) nanoparticles and nanocomposites powders were prepared by chemical precipitation method using zinc acetate and various sulfur sources. The ZnS nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet-visible and fourier transform infra-red. The structure of nanoparticles was studied using X-ray diffraction pattern. The ...

The varying seed priming methods have widely been used for the improving germinability and seedling establishment of numerous economic plants especially under environmental stresses. In this context, in order to evaluate the advantage of priming on different physiological and biochemical indices of black cumin seed germination and seedling growth in saline conditions, the factorial experiment w...

Background and Objectives: Zinc oxide (ZnO) nano-particles have been proven to have strong antibacterial activity against food borne pathogens. The practical applications of different concentrations (Control, 0, 1, 2, 4, 6 and 8 mM) of ZnO suspensions containing 1% acetic acid were investigated against the pathogenic bacteria like Staphylococcus aureus. Materials and Methods: The projects of l...

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