نتایج جستجو برای: rutile

تعداد نتایج: 2508  

بیطرفان رجبی, احمد, جدیدی, مجید, حسن زاده, هادی, دربندی آذر, امیر, رضایی طاویرانی, مصطفی, سمنانی, وحید, معصومی, حامد, نصر, رضا, نیکوفر, علیرضا,

Background and purpose: Among different cancers, breast cancer has a high prevalence among women and radiotherapy is used as a treatment modality in which radio sensitizers are used to increase its efficiency. Nanoparticles are such sensitizers that enhance the efficiency of radiotherapy via creation of free radicals and induction of oxidative stress. This study aimed at evaluating the synergis...

Journal: :Journal of Mineralogical and Petrological Sciences 2023

Needle-shaped rutile inclusions occur in garnet within the quartz-eclogite at Mt. Gongen Sanbagawa belt, central Shikoku. They are approximately 5–25 µm along long axis and typically oriented three directions, each intersecting 120°. This indicates that needle-shaped is a lamella exsolved from garnet. Garnet with needle-rutile restricted to quartz-poor domain of quartz eclogite sample, which co...

2016
Felix B. Masok Paulus L. Masiteng Risimati D. Mavunda Peane P. Maleka

This study assessed the radiological health hazards to various body organs of workers working within Transnet Precinct in Richards Bay in Kwazulu-Natal, South Africa due to radionuclide content of mineral ores often stored within the facility. Thirty samples were collected from five mineral ores (rock phosphate, rutile, zircon, coal and hematite) and analyzed for 238U, 234U, 226Ra, 210Pb, 235U,...

Journal: :Journal of materials science. Materials in medicine 2008
Jie He Wei Zhou Xiaojian Zhou Xiaoxia Zhong Xiuli Zhang Pengbo Wan Bangshang Zhu Wantao Chen

The surface properties of biomaterials play a vital role in cell morphology and behaviors such as cell adhesion, migration, proliferation and differentiation. Three different crystal phases of titania film (rutile, anatase and amorphous titania) with similar roughness were successfully synthesized by DC reactive magnetron sputtering. The surface roughness of each film was about 8-10 nm. Primary...

2013
B. S. Richards N.T.P. Huong A. Crosky

This paper describes high porosity titanium dioxide (TiO2) films deposited via atmospheric pressure chemical vapour deposition (APCVD) using tetraisopropyl titanate at deposition temperatures (Tdep) of 250C and 450C in excess water vapour. Films deposited at low Tdep exhibit a very low refractive index (nfilm) and high porosity (), up to 87% of the bulk rutile phase. High-temperature sinteri...

2013
Terry A. Egerton

Practical photocatalysis for degradation of organic pollutants must take into account the influence of other chemicals. Significant Al deposition on titania can occur at naturally occurring concentrations of dissolved Al. This paper reviews the author’s work on the influence of deliberately deposited hydrous oxides of aluminium on the behavior of a ~130 m g rutile TiO2, and then compares the be...

2017
A. Koreeda M. Yoshizawa S. Saikan

2017
M. Surman

Epitaxial ultra-thin titanium dioxide films of 0.3 to ~7nm thickness on a metal single crystal substrate have been investigated by high resolution vibrational and electron spectroscopies. The data complement previous morphological data provided by scanned probe microscopy and low energy electron diffraction to provide very complete characterisation of this system. The thicker films display elec...

Journal: :Chemical communications 2009
Tatsuo Shibata Hiroshi Irie Kazuhito Hashimoto

The dynamic hardness of rutile TiO(2) single crystal surfaces was investigated using a nanoindentation technique and the hardness increase was observed only in the near-surface region, possibly due to the volume expansion accompanied by the photoinduced high hydrophilicity.

Journal: :Chemical communications 2006
Maurizio Addamo Marianna Bellardita Agatino Di Paola Leonardo Palmisano

Photoactive films consisting of pure anatase, brookite or rutile TiO2 were prepared by dip coating from water dispersions obtained by using TiCl4 as the precursor under similar mild experimental conditions.

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