نتایج جستجو برای: titanium dioxide tio2

تعداد نتایج: 144192  

2014
Hanan Ramadan Hamad Mohamed

Despite uses of titanium dioxide (TiO2) particles in various consumer and medical products therapy increasing human daily exposure, little studies were conducted on its cardiotoxicity. Thus, this study was designed to investigate the possible modulation of nanoTiO2 induced genotoxicity, mutagenicity and apoptosis by chlorophyllin (CHL) coadministration in mice cardiac cells. Mice were injected ...

Journal: :journal of computer and robotics 0
majid farahmandjou faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran

titanium dioxide (tio2)nanoparticles have been frequently employed in the environmental treatment and purification purposes as a cheap and highly efficient photocatalyst. a photocatalyst can facilitate the breakdown and removal of a variety of environmental pollutants at room temperature. tio2 photocatalyst is the best candidatebecause of its strong oxidized ability, non-toxicity and longtherma...

Akbar Safipour Afshar Fatemeh Saeid Nematpour Tooba Aliabadi

Nanoparticles are atomic or molecular particles with at least 1–100 nanometer diameters. They have entered vastly into the world of agriculture and biology; this is because of their special effect and their unique features. Their unknown impact on living things and the ecosystems has caused a lot of concern. This research was done in order to study the effects of nano-TiO2 and nano aluminium on...

2013
Yang Wang Huijuan Sun Shijing Tan Hao Feng Zhengwang Cheng Jin Zhao Aidi Zhao Bing Wang Yi Luo Jinlong Yang J. G. Hou

The chemical reactivity of different surfaces of titanium dioxide (TiO2) has been the subject of extensive studies in recent decades. The anatase TiO2(001) and its (1 × 4) reconstructed surfaces were theoretically considered to be the most reactive and have been heavily pursued by synthetic chemists. However, the lack of direct experimental verification or determination of the active sites on t...

2016
Alexander Gogos Janine Moll Florian Klingenfuss Marcel van der Heijden Fahmida Irin Micah J. Green Renato Zenobi Thomas D. Bucheli

BACKGROUND Agricultural soils represent a potential sink for increasing amounts of different nanomaterials that nowadays inevitably enter the environment. Knowledge on the relation between their actual exposure concentrations and biological effects on crops and symbiotic organisms is therefore of high importance. In this part of a joint companion study, we describe the vertical translocation as...

2005
P. M. Parthangal M. R. Zachariah

A new method for the growth of nanoporous thin films is described. The process is targeted to the formation of titanium dioxide (TiO2) through a low-temperature inorganic-filler chemical vapor deposition (CVD) process. The growth technique employs gas-phase reaction of an alkali metal (Na) and a metal halide (TiCl4) and subsequent thin film growth within a low-pressure coflow diffusion reactor....

2014
Yuguan Ze Lei Sheng Xiaoyang Zhao Jie Hong Xiao Ze Xiaohong Yu Xiaoyu Pan Anan Lin Yue Zhao Chi Zhang Qiuping Zhou Ling Wang Fashui Hong

Titanium dioxide nanoparticles (TiO2 NPs) have been used in various medical and industrial areas. However, the impacts of these nanoparticles on neuroinflammation in the brain are poorly understood. In this study, mice were exposed to 2.5, 5, or 10 mg/kg body weight TiO2 NPs for 90 consecutive days, and the TLRs/TNF-α/NF-κB signaling pathway associated with the hippocampal neuroinflammation was...

2014
S. Perumal C. Gnana Sambandam K. Monikanda prabu S. Ananthakumar

Nanoparticles of titanium dioxide doped with Fe2+ ions have been synthesized via sol-gel technique using Titanium tetraisopropoxide (TTIP) and ferrous sulphate as a precursors. The synthesized nanopowders were characterized by Powder X-ray Diffraction (PXRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Ultraviolet Visible (UV-Vis) and Photoluminescence (PL) Spectrosco...

Journal: :Nanoscale research letters 2018
N Abdullah S K Kamarudin L K Shyuan

This study introduces a novel titanium dioxide carbon nanofiber (TiO2-CNF) support for anodic catalyst in direct methanol fuel cell. The catalytic synthesis process involves several methods, namely the sol-gel, electrospinning, and deposition methods. The synthesized electrocatalyst is compared with other three electrocatalysts with different types of support. All of these electrocatalysts diff...

2017
Vu Khac Hoang Bui Duckshin Park Young-Chul Lee

Chitosan is a natural polymer that has been widely utilized for many purposes in the food, textile, agriculture, water treatment, cosmetic and pharmaceutical industries. Based on its characteristics, including biodegradability, non-toxicity and antimicrobial properties, it has been employed effectively in wound healing applications. Importantly, however, it is necessary to improve chitosan’s ca...

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