نتایج جستجو برای: zinc oxide commercial

تعداد نتایج: 373818  

Background and Objective: Nanoparticles have been introduced as novel antimicrobial agents because of their properties that are different from their bulk properties. Present study was aimed to investigate antimicrobial activity of silver nitrate and zinc oxide nanoparticles against three main bacteria responsible for nosocomial infections, S. aureus, P. aeruginosa and A. baumannii. Materials a...

In this study, the effect of spraying of Zinc oxide nanoparticles at three concentrations (0, 1000 and 2000 ppm) on the response of Capsicum annuum L. to different levels of salinity (0, 25, 50 and 75 mM NaCl) was evaluated. The experiment was carried out as factorial based on randomized complete block design with four replications in pot culture conditions. The high concentration of salt and Z...

2014
Ali Alkaladi Aaser Mohamed Abdelazim Mohamed Afifi

The use of nanoparticles in medicine is an attractive proposition. In the present study, zinc oxide and silver nanoparticles were evaluated for their antidiabetic activity. Fifty male albino rats with weight 120 ± 20 and age 6 months were used. Animals were grouped as follows: control; did not receive any type of treatment, diabetic; received a single intraperitoneal dose of streptozotocin (100...

Journal: :Pesquisa odontologica brasileira = Brazilian oral research 2003
Marcos Augusto do do Rego Cristiane Yumi Koga-Ito Antonio Olavo Cardoso Jorge

The effects of oral environment stabilization procedures on counts of Candida spp. have rarely been discussed, and no conclusive results are found in the literature. The aim of this study was thus to ascertain the effects of oral environment stabilization procedures with glass ionomer and zinc oxide-eugenol cements on counts of Candida spp. in the oral cavity of children. For this purpose, oral...

Journal: :American journal of respiratory and critical care medicine 2005
William S Beckett David F Chalupa Andrea Pauly-Brown Donna M Speers Judith C Stewart Mark W Frampton Mark J Utell Li-Shan Huang Christopher Cox Wojciech Zareba Günter Oberdörster

RATIONALE Zinc oxide is a common, biologically active constituent of particulate air pollution as well as a workplace toxin. Ultrafine particles (< 0.1 microm diameter) are believed to be more potent than an equal mass of inhaled accumulation mode particles (0.1-1.0 microm diameter). OBJECTIVES We compared exposure-response relationships for respiratory, hematologic, and cardiovascular endpoi...

2014
C. Maragliano S. Lilliu M. S. Dahlem M. Chiesa T. Souier M. Stefancich

In the last years there has been a renewed interest for zinc oxide semiconductor, mainly triggered by its prospects in optoelectronic applications. In particular, zinc oxide thin films are being widely used for photovoltaic applications, in which the determination of the electrical conductivity is of great importance. Being an intrinsically doped material, the quantification of its doping conce...

2013
Sangeetha Nagarajan Kumaraguru Arumugam Kuppusamy

BACKGROUND The biosynthesis of metal nanoparticles by marine resources is thought to be clean, nontoxic, and environmentally acceptable "green procedures". Marine ecosystems are very important for the overall health of both marine and terrestrial environments. The use of natural sources like Marine biological resources essential for nanotechnology. Seaweeds constitute one of the commercially im...

ژورنال: یافته 2015
سید علیپور, باقر, عشریه, معصومه , خان بابایی, رمضان ,

Background :Nowadays, nanotechnology has been developing rapidly and may have considerable effects on industry, society and the environment. In this research the toxicity properties of zinc oxide nanoparticles with a size of 20 nm on enzyme and liver tissue of NMRI mice were studied. Materials and Methods: This experimental study was performed in standard conditions on 25 NMRI mice with an aver...

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 ...

In this paper, a biosensor has been fabricated using ZnO nanorods and nanoparticles to detect different concentrations of the E. coli bacteria. The innovation of this paper lies in design and fabrication of the resistive type E Coli bacteria sensor. To make this biosensors, printed circuit board based electrodes are designed and made in an interdigitated shape. Both hydrothermal and drop cast m...

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