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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
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
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
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
Henriqueta Louro et al.
Environmental and molecular mutagenesis, 55(6), 500-509 (2014-03-05)
Titanium dioxide (TiO2 ) nanomaterials (NMs) are widely used in a diversity of products including cosmetics, pharmaceuticals, food, and inks, despite uncertainties surrounding the potential health risks that they pose to humans and the environment. Previous studies on the genotoxicity
Swayamprava Dalai et al.
Aquatic toxicology (Amsterdam, Netherlands), 152, 139-146 (2014-04-24)
The extensive environmental exposure of engineered metal oxide nanoparticles (NPs) may result in their bioaccumulation in aquatic organisms leading to their biotransfer in a food chain through various routes in a freshwater ecosystem. The present study focuses on the possible
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
The reintroduction of an effective cavity liner.
Randy S Weiner
Dentistry today, 32(7), 136-137 (2013-08-10)
Zhengxin Gao et al.
Carbohydrate polymers, 128, 24-31 (2015-05-26)
A composite filter paper with super-hydrophobicity was obtained by adhering micro/nano structure of amorphous titanium dioxide on the filter paper surface with modifying low surface energy material. By virtue of the coupling agent, which plays an important part in bonding
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
Chao-Yin Kuo et al.
Environmental technology, 35(13-16), 1851-1857 (2014-06-25)
In this study, TiO2/zeolite (TZ)-based composite was utilized to degrade bisphenol A (BPA) under ultraviolet (UV) irradiation. The effects of the TiO2 and Cu2O doses in TZ and Cu2O/TiO2/zeolite (CTZ) on the rate of BPA removal were identified, respectively. The
P F Du et al.
Journal of nanoscience and nanotechnology, 14(6), 4164-4169 (2014-04-18)
Novel TiO2 nanoparticles/nanofibers (NPs/NFs) bilayered nano-composite photoanode film for dye-sensitized solar cells (DSSCs) was fabricated through the combination of spin-coating and electrospinning. The NPs and NFs layers have complementary roles. The underlaid spin-coated NPs layer provides the photoanode film with
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
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
W L Lü et al.
Cell proliferation, 48(1), 95-104 (2014-12-19)
To investigate effects of TiO2 nanotubes of different diameters on J744A.1 macrophage behaviour, secretion and expression of pro-inflammatory cytokines and chemokines. Macrophage-like J744A.1 cells were cultured on three types of Ti surface: mechanically polished titanium plus 30 and 80 nm
Yong Ho Kim et al.
Journal of nanobiotechnology, 12, 47-47 (2014-11-27)
Although engineered nanomaterials (ENM) are currently regulated either in the context of a new chemical, or as a new use of an existing chemical, hazard assessment is still to a large extent reliant on information from historical toxicity studies of
Esther Belade et al.
Archives of toxicology, 89(9), 1543-1556 (2014-08-08)
Manufactured nanomaterials (MNMs) have the potential to improve everyday life as they can be utilised in numerous medical applications and day-to-day consumer products. However, this increased use has led to concerns about the potential environmental and human health impacts. The
Lu-Ning Wang et al.
Journal of nanoscience and nanotechnology, 13(8), 5316-5326 (2013-07-26)
Electrochemically anodized TiO2 nanotubular arrays can provide large surface areas for biological species attachment. In order to further enhance the biocompatibility of Ti medical implants, we deposited a pre-synthesized hydroxyapatite inside and on the nanotubular arrays, and examined the biocompatibility
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
Yong Chen et al.
Chemosphere, 113, 48-55 (2014-07-30)
The interlayer of Sb-doped SnO2 (SnO2-Sb) and TiO2 nanotubes (TiO2-NTs) on Ti has been introduced into the PbO2 electrode system with the aim to reveal the mechanism of enhanced electrochemical performance of TiO2-NTs/SnO2-Sb/PbO2 electrode. In contrast with the traditional Ti/SnO2-Sb/PbO2
Luciano Gama Braga et al.
Cell reports, 33(7), 108397-108397 (2020-11-19)
The balance of phospho-signaling at the outer kinetochore is critical for forming accurate attachments between kinetochores and the mitotic spindle and timely exit from mitosis. A major player in determining this balance is the PP2A-B56 phosphatase, which is recruited to
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
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
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
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
Kwi-Dug Yun et al.
Journal of nanoscience and nanotechnology, 13(6), 3864-3867 (2013-07-19)
This study examined the bone response to titanium dioxide nanotube modified implants. A total of 24 implants were placed in the femur of 4 beagles. Before placement, screw-shaped implants were classified into 3 groups; machined surface (group M), titanium dioxide
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
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.
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
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