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Showing 1-30 of 184 results for "232033" within Papers
Woo-Byoung Kim et al.
Journal of nanoscience and nanotechnology, 13(7), 4622-4626 (2013-08-02)
To investigate the microstructural effects of the synthesized TiO2 nanopowders such as particle size, specific surface area, pore size and pore distributions for the application of an anode material of dye-sensitized solar cells (DSSC), size-controlled and well-dispersed TiO2 nanopowders were
Fujiao Song et al.
Journal of environmental sciences (China), 25(3), 554-560 (2013-08-08)
TiO2 nanotubes (TiNT) were prepared by a hydrothermal treatment and modified by three kinds of amines, namely ethylenediamine, polyetherimide and tetraethylenepentamine (TEPA), to study their CO2 adsorption properties from gas streams. The resultant samples were characterized by X-ray diffraction, transmission
Eşref Demir et al.
Environmental research, 136, 300-308 (2014-12-03)
The in vitro genotoxic and the soft-agar anchorage independent cell transformation ability of titanium dioxide nanoparticles (nano-TiO2) and its microparticulated form has been evaluated in human embryonic kidney (HEK293) and in mouse embryonic fibroblast (NIH/3T3) cells. Nano-TiO2 of two different
Tae-Yeon Oh et al.
Journal of nanoscience and nanotechnology, 13(5), 3491-3494 (2013-07-19)
This work studies the effect of post annealing of pentacene on a flexible substrate through the examination of electrical properties and surface morphologies. It is confirmed that the best performance of devices is achieved when the post annealing temperature is
D M Rivera-Chacon et al.
Journal of biomedical nanotechnology, 9(6), 1092-1097 (2013-07-19)
Improvements in osteoconduction of implant biomaterials require focusing on the bone-implant interface, which is a complex multifactorial system. Surface topography of implants plays a crucial role at this interface. Nanostructured surfaces have been shown to promote serum protein adsorption and
Juan F Callejas et al.
ACS nano, 8(11), 11101-11107 (2014-09-25)
Nanostructured transition-metal phosphides have recently emerged as Earth-abundant alternatives to platinum for catalyzing the hydrogen-evolution reaction (HER), which is central to several clean energy technologies because it produces molecular hydrogen through the electrochemical reduction of water. Iron-based catalysts are very
Liwen Qiang et al.
Nanotoxicology, 10(4), 471-479 (2015-11-12)
Nano-titanium dioxide (nano-TiO2) is one of the most universal engineered nano-materials while perfluorooctanesulfonate (PFOS) is a typical new persistent organic pollutant. They are widely used and present in aquatic environment. In this study, a novel semi-static multilayer microcosm was setup
E Albiter et al.
Journal of nanoscience and nanotechnology, 13(7), 4943-4948 (2013-08-02)
Noble metals deposited on TiO2 act as electron traps facilitating electron-hole separation and promoting the interfacial electron transfer process. In particular, silver nanoparticles have the ability to absorb visible light due to localized surface plasmon resonance. Here we report a
David J Burke et al.
International journal of molecular sciences, 16(10), 23630-23650 (2015-10-09)
In this study, we investigated the effect of positively and negatively charged Fe₃O₄ and TiO₂ nanoparticles (NPs) on the growth of soybean plants (Glycine max.) and their root associated soil microbes. Soybean plants were grown in a greenhouse for six
Asa Gustafsson et al.
Toxicology, 326, 74-85 (2014-12-03)
This study examines the immunological responses in rats following inhalation to titanium dioxide nanoparticles (TiO2 NPs), in naïve rats and in rats with induced allergic airway disease. The responses of two different inbred rat strains were compared: the Dark Aguoti
J Jacob Mancuso et al.
Journal of biomedical optics, 19(12), 126017-126017 (2014-12-30)
We sought to elucidate the mechanisms underlying two common intravascular optical coherence tomography (IV-OCT) artifacts that occur when imaging metallic stents: “merry-go-rounding” (MGR), which is an increase in strut arc length (SAL), and “blooming,” which is an increase in the
E-M Kim et al.
Journal of nanoscience and nanotechnology, 13(12), 8325-8330 (2013-11-26)
There are no data available on the behavioural effects of centrally administered nanoparticles in freely moving intact mammals. Consequently, in the current study male Sprague-Dawley rats were trained to respond under an alternating-lever cyclic-ratio (ALCR) schedule of food reinforcement. Under
Cédric Weber et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(16), 5790-5795 (2014-04-11)
We carry out a first-principles atomistic study of the electronic mechanisms of ligand binding and discrimination in the myoglobin protein. Electronic correlation effects are taken into account using one of the most advanced methods currently available, namely a linear-scaling density
Sana Thabet et al.
Applied and environmental microbiology, 80(24), 7527-7535 (2014-09-28)
We have investigated the antimicrobial effects of photocatalysis on the yeast model Saccharomyces cerevisiae. To accurately study the antimicrobial mechanisms of the photocatalytic process, we focused our investigations on two questions: the entry of the nanoparticles in treated cells and
Joanna Piasecka-Zelga et al.
Journal of occupational health, 57(3), 275-284 (2015-03-20)
Many employees working outside are exposed to the harmful effects of UV radiation. A growing problem is also sensitization to textile materials and allergic reactions to active compounds. Groups of inorganic UV blockers with nanoparticles may provide superior properties over
G He et al.
Cell proliferation, 47(3), 258-266 (2014-04-18)
To improve efficacy of current titanium and its alloys, in bioactivity and speed of osseointegration, of orthopaedic implants. A novel triple-layered functional graded coating, consisting of a porous hydroxyapatite (HA) outermost layer, fluoro-HA (FHA) intermediate layer and titanium oxide (TiO2
Dongsheng Guan et al.
Journal of nanoscience and nanotechnology, 14(6), 4541-4550 (2014-04-18)
Bamboo-type TiO2 nanotube arrays with high surface area can be synthesized by alternating voltage (AV) anodization for their important use as photocatalytic medium. Their morphologies are highly dependent on preparation parameters including anodization time and electrolyte composition. Minimum time of
The reintroduction of an effective cavity liner.
Randy S Weiner
Dentistry today, 32(7), 136-137 (2013-08-10)
Sarah E Bohndiek et al.
PloS one, 8(9), e75533-e75533 (2013-10-03)
Photoacoustic imaging combines the high contrast of optical imaging with the spatial resolution and penetration depth of ultrasound. This technique holds tremendous potential for imaging in small animals and importantly, is clinically translatable. At present, there is no accepted standard
V Bjerre-Harpøth et al.
Journal of dairy science, 98(12), 8581-8596 (2015-10-12)
Our objective was to investigate the quantitative and qualitative effects of propylene glycol (PG) allocation on postpartum adipose tissue mobilization in over-conditioned Holstein cows. Nine ruminally cannulated and arterially catheterized cows were, at parturition, randomly assigned to a ruminal pulse
Nikiwe Mhlanga et al.
Journal of nanoscience and nanotechnology, 14(6), 4269-4277 (2014-04-18)
This study reports the synthesis, characterisation and thermal properties of polylactide (PLA)/titanium dioxide nanoparticles (TiO2 NPs) composites using the sol-gel method. The percentage weight of TiO2 NP sol was varied from 3, 8, 11 and 14. The synthesised composites were
Janine Moll et al.
PloS one, 11(5), e0155111-e0155111 (2016-05-14)
Titanium dioxide nanoparticles (TiO2 NPs) are in consideration to be used in plant protection products. Before these products can be placed on the market, ecotoxicological tests have to be performed. In this study, the nitrogen fixing bacterium Rhizobium trifolii and
Janna Freitag et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(12), 2670-2679 (2015-06-30)
The photocatalytic properties of titanium dioxide (TiO2 ) layers on different metal plates are investigated. The metal-semiconductor interface can be described as a Schottky contact, and is part of a depletion layer for the majority carriers in the semiconductor. Many
Chung-Hsin Wu et al.
Environmental technology, 34(17-20), 2513-2519 (2014-02-18)
This study synthesized a TiO2/carbon nanotubes (CNTs) composite via the sol-gel method. The surface characteristics of the TiO2/CNTs composite were determined by X-ray diffraction, transmission electron microscopy, specific surface area analyser, ultraviolent (UV)-vis spectroscopy, X-ray photoelectron spectroscopy and Raman spectrometer.
Minyong Eom et al.
Journal of nanoscience and nanotechnology, 13(5), 3742-3746 (2013-07-19)
Multilayered titanate nanotubes (TNTs) has been considered as a candidate for lithium ion battery anode material. However, it has a problem of high irreversible capacity due to trapped lithium ions in the interlayer space. To solve this problem, an attempt
Jeffrey R Johnson et al.
PLoS computational biology, 11(8), e1004362-e1004362 (2015-08-28)
The African clawed frog Xenopus laevis is an important model organism for studies in developmental and cell biology, including cell-signaling. However, our knowledge of X. laevis protein post-translational modifications remains scarce. Here, we used a mass spectrometry-based approach to survey
Laura Canesi et al.
Aquatic toxicology (Amsterdam, Netherlands), 153, 53-65 (2013-12-18)
Despite the growing concern over the potential biological impact of nanoparticles (NPs) in the aquatic environment, little is known about their interactions with other pollutants. The bivalve Mytilus sp, largely utilized as a sentinel for marine contamination, has been shown
Ki-Tae Kim et al.
Bulletin of environmental contamination and toxicology, 93(4), 456-460 (2014-05-23)
Aquatic toxicity of titanium dioxide nanoparticles (TiO2 NPs) to Daphnia magna was characterized using a completely stirred bioassay system intended to keep particles in suspension thereby maintaining a consistent exposure. The 48-h LC50 was 4.5 mg/L TiO2 NPs, whereas LC50
Yun-Geon Lee et al.
Journal of toxicology and environmental health. Part A, 78(3), 185-195 (2014-12-17)
The evaluation of the potential of nanoparticles (NP) for adsorbing biomolecules and use of control approaches are important for accurate presentation of in vitro analytical data. In this study, seven types of NP including carbon black (CB), cerium dioxide (CeO2)
Friederike Eisenächer et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 88(3), 778-786 (2014-08-03)
Gastroretentive drug delivery systems are retained in the stomach for a sufficient time interval, releasing the drug in a controlled manner. According to literature, the floating principle is the most frequently used formulation approach for gastric retention. However, many publications
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