The aim of this paper is to describe the process and challenges in building exposure scenarios for engineered nanomaterials (ENM), using an exposure scenario format similar to that used for the European Chemicals regulation (REACH). Over 60 exposure scenarios were developed based on information from publicly available sources (literature, books, and reports), publicly available exposure estimat...

Nano sized Titanium dioxide (TiO2) produced by sol-gel method was applied on worsted fabrics using mini stenter before and after dyeing with Anthra red B Acid black 194. The effect of TiO2 breaking strength, tear seam slippage, hydrophobicity, fastness color change the examined comparatively considering application step. brightness were measured a spectrophotometer FTIR-ATR, respectively. It ob...

We aimed to develop an alginate hydrogel (AH) modified with nano-/microfibers of titanium dioxide (nfTD) and hydroxyapatite (nfHY) and evaluated its biological and chemical properties. Nano-/microfibers of nfTD and nfHY were combined with AH, and its chemical properties were evaluated by FTIR spectroscopy, X-ray diffraction, energy dispersive X-Ray analysis, and the cytocompatibility by the WST...

An estimated 1% or less of nanoparticles (NPs) deposited in the lungs translocate to systemic circulation and enter other organs; however, this estimation may not be accurate given the low sensitivity of existing in vivo NP detection methods. Moreover, the biological effects of such low levels of translocation are unclear. We employed a nano-scale hyperspectral microscope to spatially observe a...

CONTEXT Titanium dioxide nanoparticles (nano-TiO(2)) and ethanol vapors are air contaminants with increasing importance. The presence of a pathological pulmonary condition, such as asthma, may increase lung susceptibility to such contaminants. OBJECTIVE This study aimed to investigate if exposure to inhaled ethanol vapors or nano-TiO(2) can modulate the rat pulmonary inflammatory response res...

This research demonstrates a simple method for synthesizing titanium dioxide nanoparticle-decorated carbon nanofibers. These nanofibers showed highly efficient degradation of methylene blue under UV light because of the synergistic effects of the large surface-active sites of titanium dioxide nanoparticles and the carbon nanofibers on the photocatalytic properties.

Titanium thin layers with the same deposition conditions were deposited on glass substrates at room temperature. Different annealing temperatures namely, 400 K, 500 K and 600 K with uniform 9 cm /sec oxygen 3 flow were used to produce titanium oxide layers. The nano-structure of layers were studied using AFM and XRD methods. Optical Reflectance were studied by spectrophotometer method. Correlat...

A broadband metamaterial absorber (MA) composed of hexagonal-arranged single-sized titanium nitride (TiN) nano-disk array and monolayer molybdenum disulfide (MoS2) is studied using finite-difference time-domain (FDTD) simulations. The structure of TiN nano-disk array/dielectric silica (SiO2)/aluminum (Al) is adopted in our design. By optimizing the dimension parameters of the structure, an aver...

Low emergence and vigor of canola seeds are common problems encountered by growers. Seed coating is a good way to solve this problem. The objective study was find the best combination nano-organic be used as for strengthening absorption water seed low canola. treatments in first experiment included six levels organic coatings: 20% vermicompost with 80% bentonite, 30% 70% 40% 60% residues reside...

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