نتایج جستجو برای: zno nanoparticle

تعداد نتایج: 49900  

2013
A Sivakumar R Murugan K Sundaresan S Periyasamy

Ultra-violet protection and self-cleaning action of nano zinc oxide (ZnO) and titanium di-oxide (TiO2) with acrylic binder has been assessed on the cotton fabric using pad-dry-cure method. Different precursors, such as zinc acetate and titanium tetrachloride have been used to synthesize nanoparticles. Zinc acetate is synthesized into nanoparticle by wet chemical technique and titanium tetrachlo...

Journal: :Nanoscale 2014
Alexander Hsu Fangzhou Liu Yu Hang Leung Angel P Y Ma Aleksandra B Djurišić Frederick C C Leung Wai Kin Chan Hung Kay Lee

Antibacterial activity of nanomaterials is strongly dependent on their properties, and their stability and toxicity can be varied using surface coatings. We investigated the effect of different surface modifying molecules on the antibacterial properties of two ZnO nanoparticle samples. We found that the starting surface properties of the nanoparticles have significant effects on the attachment ...

2017

Polyaniline/ZnO nanocomposite thin films were prepared via an electrochemical synthesis route on ITO coated glass substrates. ZnO nanoparticles were uniformly dispersed in to the polyaniline matrix. Interaction between ZnO nanoparticle and polyaniline has been studied using X-ray diffraction (XRD), UV-Vis absorption spectroscopy, PL spectroscopy, AFM and I-V characteristics. The ammonia gas sen...

2014
Paul M Maschhoff Benjamin M Geilich Thomas J Webster

There has been a significant and growing concern over nosocomial medical device infections. Previous studies have demonstrated that embedding nanoparticles alone (specifically, zinc oxide [ZnO]) in conventional polymers (eg, polyvinyl chloride [PVC]) can decrease bacteria growth and may have the potential to prevent or disrupt bacterial processes that lead to infection. However, little to no st...

Journal: :ACS applied materials & interfaces 2012
Yuan-Ming Chang Man-Ling Lin Tung-Yen Lai Hsin-Yi Lee Chih-Ming Lin Yew-Chung Sermon Wu Jenh-Yih Juang

The structural and optoelectronic properties of ZnO nanopillars (ZnO-NPs) grown on Si substrates by the vapor transport deposition method were investigated. In particular, by varying the deposition duration and hence the morphology of the vertically aligned ZnO-NPs, the resultant field emission characteristics were systematically compared. In addition to identifying the advantageous field emiss...

Background: Bacterial resistance to the commonly used antibacterial agents is an increasing challenge in the medicine, and a major problem for the health care systems; the control of  their spread  is a constant challenge for the hospitals. Objectives: In this study, we have investigated the antimicrobial activity of the Zinc Oxide nanoparticles against clinical sample; Yersinia intermedia bact...

Aziz Mahmoudzadeh Hassan Ali Nedaei Hossein Mozdarani Masoumeh Zanganeh

Introduction: Radiation therapy is one of the major modalities that have long been used in cancer treatment. Radiotherapy is often accompanied by early and late toxicity and side effects and narrow therapeutic window. Similarity in radiation absorption properties of tumors and neighboring healthy tissues is often the reason for low specificity of radiation therapy. Development ...

2015
H G. WANKHADE

Zinc oxide nanocomposite was prepared by sol gel method. Synthesized nanoparticle was characterized by X-ray diffraction and FT-IR spectroscopy. According to XRD analysis the crystallite size was found to be 30nm (approx) for ZnO. The formation of ZnO is confirmed by FT-IR. ZnO is used for the preparation of HRP/ ZnO/PVA/Au electrode. ZnO nanocomposite is mixed with PVA Solution and a thin laye...

Journal: :nanomedicine journal 0
banafsheh raisi dehkourdi department of biochemistry, falavarjan branch, islamic azad university, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) soheil fatahian department of biosciences, falavarjan branch, islamic azad university, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) kahin shahanipoor department of biochemistry, falavarjan branch, islamic azad university, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

objective(s): the wide scale use of zinc oxide nanoparticles (zno nps) in the consumer market world makes human beings more prone to the exposure to zno nanoparticles and its adverse effects. therefore, the aim of the present study is to assess renal toxicity potential of zno and polyethylene glycol coated zno nanoparticles in rat.materials and methods: co-precipitation chemical method was used...

2009
T. Conant A. M. Karim V. Lebarbier Y. Wang F. Girgsdies R. Schlögl A. Datye

ZnO-supported palladium-based catalysts have been shown in recent years to be both active and selective towards the steam reforming of methanol, although they are still considered to be less active than traditional copper-based catalysts. The activity of PdZn catalysts can be significantly improved by supporting them on alumina. Here we show that the Pd/ZnO/Al2O3 catalysts have better long-term...

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