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Showing 1-30 of 212 results for "637254" within Papers
Diogo Noin de Oliveira et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 988, 13-19 (2015-03-07)
Sunlight exposure causes several types of injury to humans, especially on the skin; among the most common harmful effects due to ultraviolet (UV) exposure are erythema, pigmentation and lesions in DNA, which may lead to cancer. These long-term effects are
Milena K Bulla et al.
Photochemistry and photobiology, 91(3), 558-566 (2015-01-13)
Schinus terebinthifolius is a plant rich in phenolic compounds, which have antioxidant properties and can provide new opportunities for treatment and prevention of diseases mediated by ultraviolet radiation like photoaging and skin cancer. The aim of this study was to
Hyun-Woo Kang et al.
Faraday discussions, 176, 287-299 (2014-11-20)
The effect of double blocking layers on the Sb(2)S(3)-sensitized all solid state solar cell are investigated. Thin layers of ZrO(2) (blocking layer 1, BL1) and ZnS (blocking layer 2, BL2) are introduced at the TiO(2)/Sb(2)S(3) and Sb(2)S(3)/hole transporting material (HTM)
Jun-Jie Yin et al.
Toxicology and applied pharmacology, 263(1), 81-88 (2012-06-19)
Nano-sized titanium dioxide (TiO(2)) is among the top five widely used nanomaterials for various applications. In this study, we determine the phototoxicity of TiO(2) nanoparticles (nano-TiO(2)) with different molecular sizes and crystal forms (anatase and rutile) in human skin keratinocytes
Ritesh Kumar Srivastava et al.
PloS one, 6(9), e25767-e25767 (2011-10-08)
We study the ameliorative potential of dimetylthiourea (DMTU), an OH• radical trapper and N-acetylcysteine (NAC), a glutathione precursor/H₂O₂ scavenger against titanium dioxide nanoparticles (TiO₂-NPs) and multi-walled carbon nanotubes (MWCNTs) induced cyto-genotoxicity in cultured human lung cancer cells-A549. Cytogenotoxicity was induced
Elisa Moschini et al.
Toxicology letters, 222(2), 102-116 (2013-08-03)
Metal oxide NPs are abundantly produced in nanotech industries and are emitted in several combustion processes, suggesting the need to characterize their toxic impact on the human respiratory system. The acute toxicity and the morphological changes induced by copper oxide
Goldie Oza et al.
Materials science & engineering. C, Materials for biological applications, 33(7), 4392-4400 (2013-08-06)
A porous ceramic was coated with vertically aligned multi-walled carbon nanotubes (MWCNTs) by spray pyrolysis. Titanium dioxide (TiO2) nanoparticles were then coated onto this densely aligned MWCNT. The presence of TiO2/MWCNT interfacial arrays was confirmed by X-ray diffraction (XRD), scanning
R Khataee et al.
Journal of nanoscience and nanotechnology, 13(7), 5109-5114 (2013-08-02)
In the present study, self-cleaning and mechanical properties of white Portland cement by addition of commercial available TiO2 nanoparticles with the average particle size of 80 nm were investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM) and BET were used
Sang-Kyu Jung et al.
Environmental science & technology, 49(4), 2477-2485 (2015-01-23)
The booming nanotechnology industry has raised public concerns about the environmental health and safety impact of engineered nanomaterials (ENMs). High-throughput assays are needed to obtain toxicity data for the rapidly increasing number of ENMs. Here we present a suite of
Chang Hee Woo et al.
Journal of biomaterials science. Polymer edition, 26(13), 841-854 (2015-06-23)
We designed bilayer composites composed of an upper layer of titanium dioxide (TiO2)-incorporated chitosan membrane and a sub-layer of human adipose-derived extracellular matrix (ECM) sheet as a wound dressing for full-thickness wound healing. The dense and fibrous top layer, which
Estefany I Medina-Reyes et al.
Environmental research, 136, 424-434 (2014-12-03)
Titanium dioxide nanoparticles (TiO2 NPs) studies have been performed using relatively high NPs concentration under acute exposure and limited studies have compared shape effects. We hypothesized that midterm exposure to low TiO2 NPs concentration in lung epithelial cells induces carcinogenic
Biwu Liu et al.
Nanoscale, 8(28), 13620-13626 (2016-07-02)
Fluorescent polydopamine (FPD) is an interesting material with excellent biocompatibility. However, its preparation is currently a lengthy and potentially dangerous process. We herein employ magnetic iron oxide (Fe3O4) nanoparticles as a peroxidase-mimicking nanozyme to produce FPD under mild conditions. Different
Olivier De Castro et al.
Analytical chemistry, 93(43), 14417-14424 (2021-10-21)
Over the last few decades, nanoparticles have become a key element in a number of scientific and technological fields, spanning from materials science to life sciences. The characterization of nanoparticles or samples containing nanoparticles, in terms of morphology, chemical composition
C Couteau et al.
International journal of pharmaceutics, 476(1-2), 160-163 (2014-10-01)
Given that previous studies have highlighted the anti-inflammatory nature, which is influenced by UV radiation, of a certain number of ultraviolet filters currently used in Europe, it seemed interesting to evaluate the persistence of this type of effect. The persistence
Zheng-Mei Song et al.
Journal of applied toxicology : JAT, 35(10), 1169-1178 (2015-06-25)
Titanium dioxide nanoparticles (TiO2 NPs) are widely found in food-related consumer products. Understanding the effect of TiO2 NPs on the intestinal barrier and absorption is essential and vital for the safety assessment of orally administrated TiO2 NPs. In this study
N Rioja et al.
Environmental science and pollution research international, 21(19), 11168-11177 (2014-02-18)
This work explores the competitive removal of pharmaceuticals from synthetic and environmental waters by combined adsorption-photolysis treatment. Five drugs usually present in waterways have been used as target compounds, some are pseudo-persistent pollutants (carbamazepine, clofibric acid, and sulfamethoxazole) and others
Leonardo P Franchi et al.
Toxicology in vitro : an international journal published in association with BIBRA, 29(7), 1319-1331 (2015-06-02)
Metallic nanoparticles such as silver (Ag), cerium dioxide (CeO2) and titanium dioxide (TiO2) are produced at a large scale and included in many consumer products. It is well known that most metallic NPs are toxic to humans which raise concerns
R K Mutucumarana et al.
Poultry science, 94(7), 1611-1618 (2015-05-28)
An experiment was conducted to estimate true ileal phosphorus (P:) digestibility of 3 meat and bone meal samples (MBM-1, MBM-2: , and MBM-3:) for broiler chickens. Four semipurified diets were formulated from each sample to contain graded concentrations of P.
Anupam Dhasmana et al.
PloS one, 9(9), e107068-e107068 (2014-09-13)
Polycyclic aromatic hydrocarbons (PAH), like Benzo[alpha]Pyrene (BaP) are known to cause a number of toxic manifestations including lung cancer. As Titanium dioxide Nanoparticles (TiO2 NPs) have recently been shown to adsorb a number of PAHs from soil and water, we
Cristhiam Rueda-Romero et al.
Particle and fibre toxicology, 13(1), 36-36 (2016-06-25)
There is growing evidence that exposure to titanium dioxide nanoparticles (TiO2 NPs) could be harmful. Previously, we have shown that TiO2 NPs induces endothelial cell dysfunction and damage in glial cells. Considering that inhaled particles can induce systemic effects and
Mark A Baker et al.
Journal of visualized experiments : JoVE, (94)(94), doi:10-doi:10 (2015-01-16)
Spermatozoa are quite unique amongst cell types. Although produced in the testis, both nuclear gene transcription and translation are switched off once the pre-cursor round cell begins to elongate and differentiate into what is morphologically recognized as a spermatozoon. However
Dangqin Jin et al.
Food chemistry, 194, 959-965 (2015-10-17)
An electrochemical method for the indirect determination of acetamiprid was studied, using titanium dioxide photocatalysts coupled with a carbon paste electrode. The cyclic voltammetric results indicated that the photocatalytic degradation compound of acetamiprid had electroactivity in neutral solutions. The amount
Markus Rehberg et al.
PloS one, 6(11), e28237-e28237 (2011-12-06)
Second and Third Harmonic Generation (SHG and THG) microscopy is based on optical effects which are induced by specific inherent physical properties of a specimen. As a multi-photon laser scanning approach which is not based on fluorescence it combines the
M Hasmath Farzana et al.
International journal of biological macromolecules, 72, 1265-1271 (2014-10-04)
This article describes the photo-reduction of heavy metal Cr(VI) in aqueous solution using titanium dioxide impregnated chitosan beads (TCB) in the presence of UV irradiation. The synergistic role of TCB results in excellent photocatalytic behavior. The reduction of Cr(VI) by
Julia X Yu et al.
Cell & bioscience, 1(1), 19-19 (2011-06-30)
Metal oxides in nanoparticle form such as zinc oxide and titanium dioxide now appear on the ingredient lists of household products as common and diverse as cosmetics, sunscreens, toothpaste, and medicine. Previous studies of zinc oxide and titanium dioxide in
Rinat M Taziev
Ultrasonics, 54(2), 425-427 (2013-10-22)
Surface and quasi-longitudinal acoustic wave properties have been investigated in potassium titanyl arsenate (KTiOAsO₄, KTA) single crystals for the first time. Surface acoustic wave (SAW) velocity, electromechanical coupling coefficient and power flow angle characteristics have been obtained in rotated Y-cut
Virginia Gomez et al.
Nanoscale, 7(42), 17735-17744 (2015-10-13)
Bi-phasic or multi-phasic composite nanoparticles for use in photocatalysis have been produced by a new synthetic approach. Sol-gel methods are used to deposit multiple layers of active material onto soluble substrates. In this work, a layer of rutile (TiO2) was
Fei Tian et al.
Journal of environmental sciences (China), 25(11), 2299-2305 (2014-02-21)
A series of precious metals catalysts (M/TiO2, M = Ru, Rh, Pd, Ag, Ir, Pt or Au) were prepared by a light deposition method and the synergistic photocatalytic degradations of pyridine (20 mg/L) under UV irradiation (365 nm) using M/TiO2
Colossal permittivity materials: Doping for superior dielectrics.
Christopher C Homes et al.
Nature materials, 12(9), 782-783 (2013-08-24)
Zhangjian Chen et al.
Toxicology letters, 226(3), 314-319 (2014-03-07)
With the extensive application of titanium dioxide (TiO2) nanoparticles (NPs) in food industry, there is a rising debate concerning the possible risk associated with exposure to TiO2 NPs. The purpose of this study is to evaluate the genotoxicity of TiO2
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