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Roberta Tassinari et al.
Nanotoxicology, 8(6), 654-662 (2013-07-10)
The study explored possible reproductive and endocrine effects of short-term (5 days) oral exposure to anatase TiO2 nanoparticles (0, 1, 2 mg/kg body weight per day) in rat. Nanoparticles were characterised by scanning electron microscopy (SEM) and transmission electron microscopy
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)
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
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
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
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
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
Gage J Greening et al.
Biomedical optics express, 6(12), 4934-4950 (2015-12-30)
Early detection of structural or functional changes in dysplastic epithelia may be crucial for improving long-term patient care. Recent work has explored myriad non-invasive or minimally invasive "optical biopsy" techniques for diagnosing early dysplasia, such as high-resolution microendoscopy, a method
Nguyen Duy Binh et al.
Environmental technology, 35(9-12), 1121-1132 (2014-04-08)
Decomposition of 2,3,7,8-Tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) present in soil under ultraviolet (UV) illumination (350-400nm) was investigated using a combination of nontoxic solvents mixed in soil and nanoscale anatase TiO2 (nTiO2) distributed on 2mm top soil surface. Three types of UV-exposure experiments were
Stephan Brosillon et al.
Chemosphere, 109, 173-179 (2014-03-13)
This study reports on the first assessment of the treatment of sediments contaminated by organotin compounds using heterogeneous photocatalysis. Photocatalysis of organotins in water was carried out under realistic concentration conditions (μgL(-1)). Degradation compounds were analyzed by GC-ICP-MS; a quasi-complete
Michael Bushell et al.
Nanomaterials (Basel, Switzerland), 10(9) (2020-09-17)
Physical chemical characterization of nanomaterials is critical to assessing quality control during production, evaluating the impact of material properties on human health and the environment, and developing regulatory frameworks for their use. We have investigated a set of 29 nanomaterials
Constantinos Gitrowski et al.
Toxicology letters, 226(3), 264-276 (2014-03-01)
The gastrointestinal uptake of different crystal structures of TiO2 was investigated using Caco-2 intestinal cells. Caco-2 monolayers exhibited time-dependent, saturable uptake of Ti from TiO2 exposures of 1 mgl(-1) over 24h, which was influenced by crystal type. Initial uptake rates
Olga Wiens et al.
PloS one, 9(7), e103821-e103821 (2014-08-01)
The invasion of Theileria sporozoites into bovine leukocytes is rapidly followed by the destruction of the surrounding host cell membrane, allowing the parasite to establish its niche within the host cell cytoplasm. Theileria infection induces host cell transformation, characterised by
Paul A Carpenter et al.
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation, 21(7), 1167-1187 (2015-04-04)
The 2006 National Institutes of Health (NIH) Consensus paper presented recommendations by the Ancillary Therapy and Supportive Care Working Group to support clinical research trials in chronic graft-versus-host disease (GVHD). Topics covered in that inaugural effort included the prevention and
Eun-Jung Park et al.
Toxicology letters, 230(1), 69-79 (2014-08-12)
In this study, we identified the toxic effects of sheet-type titania (TNS), which are being developed as a material for UV-blocking glass, comparing with P25, a benchmark control for titania, in MH-S cells, a mouse alveolar macrophage cell line. After
Yang Zhang et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 960, 52-58 (2014-05-03)
A novel TiO2/diatomite composite (TD) was prepared and then characterized by scanning electron microscope (SEM) and Fourier Transform Infrared (FTIR). The results of SEM showed that after modification, the porous surface of diatomite was covered with TiO2. Both diatomite 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
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
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
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
Eric Formo et al.
Nano letters, 8(2), 668-672 (2008-01-22)
This paper reports a simple procedure for derivatizing the surface of anatase TiO2 nanofibers with Pt nanoparticles and then Pt nanowires. The nanofibers were prepared in the form of a nonwoven mat by electrospinning with a solution containing both poly(vinyl
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
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
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
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
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
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
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
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
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