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Showing 1-30 of 118 results for "GF71020235" within Papers
Mingjie Liu et al.
Nature, 517(7532), 68-72 (2015-01-06)
Machine technology frequently puts magnetic or electrostatic repulsive forces to practical use, as in maglev trains, vehicle suspensions or non-contact bearings. In contrast, materials design overwhelmingly focuses on attractive interactions, such as in the many advanced polymer-based composites, where inorganic
B Fink et al.
The bone & joint journal, 96-B(7), 889-895 (2014-07-06)
We report our experience of revision total hip replacement (THR) using the Revitan curved modular titanium fluted revision stem in patients with a full spectrum of proximal femoral defects. A total of 112 patients (116 revisions) with a mean age
Peter Komlosi et al.
Journal of neurosurgery. Spine, 22(1), 34-38 (2014-11-08)
Monoenergetic imaging with dual-energy CT has been proposed to reduce metallic artifacts in comparison with conventional polychromatic CT. The purpose of this study is to systematically evaluate and define the optimal dual-energy CT imaging parameters for specific cervical spinal implant
Zhensen Tang et al.
Journal of nanoscience and nanotechnology, 14(2), 1494-1507 (2014-04-23)
Resistive switching (RS) phenomena have been vigorously investigated in a large variety of materials and highlighted for its preeminent potential for the future nonvolatile semiconductor memory applications or reconfigurable logic circuits. Among the various resistive switching materials, the binary metal
Xilong Wang et al.
Environmental pollution (Barking, Essex : 1987), 194, 31-37 (2014-08-05)
Dissolved organic matter (DOM) may alter the sorption of hydrophobic organic contaminants (HOC) to metal oxide nanoparticles (NPs), but the role of DOM and NP types is poorly understood. Here, phenanthrene sorption was quantified on four types of nano-TiO2 (three
David B Warheit
Toxicology letters, 220(2), 193-204 (2013-04-23)
Due to its multifunctional applications, titanium dioxide particles have widespread use in commerce. The particle-types function as sources of pigment color, in food products, anti-bacterial components, ultraviolet radiation scavengers, catalysts, as well as in cosmetics. Because of its inherent properties
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
Pooja Garg et al.
The Journal of oral implantology, 40(6), 649-654 (2014-12-17)
Desired retrievability of cemented implant-supported fixed prosthesis makes the retentive strength of cementing agents an important consideration. The aim of the study was to evaluate the retentiveness of purposely designed implant cement and compare its retentiveness with dental cements that
M Savabieasfahani et al.
Environmental monitoring and assessment, 187(1), 4127-4127 (2014-12-03)
Anthropogenic release of pollutants into the environment is especially harmful to growing fetuses and young children. These populations are at an increased risk of damage because exposure to pollutants during critical periods of development can cause many impairments. Children's exposure
[Allergic to titanium plate fixation implants after operation of tibial plateau fracture: a case report].
Zai-qiang Xu et al.
Zhongguo gu shang = China journal of orthopaedics and traumatology, 27(12), 1047-1049 (2015-02-03)
Shitu Jindal et al.
The Journal of oral implantology, 40 Spec No, 347-355 (2014-07-16)
This investigation was carried out to study the effect of a novel process of surface modification, surface nanostructuring by ultrasonic shot peening, on osteoblast proliferation and corrosion behavior of commercially pure titanium (c p-Ti) in simulated body fluid. A mechanically
Evsen Tamam et al.
The Journal of oral implantology, 40(2), 153-159 (2014-05-02)
Implant failure is more likely to occur in persons with medically compromising systemic conditions, such as diabetes related to high blood glucose levels and inflammatory diseases related to pH levels lower than those in healthy people. The aim of this
Hudson C Polonini et al.
Aquatic toxicology (Amsterdam, Netherlands), 154, 58-70 (2014-05-28)
The interaction between live organisms and micro- or nanosized materials has become a current focus in toxicology. As nanosized barium titanate has gained momentum lately in the medical field, the aims of the present work are: (i) to assess BT
Coexistence of silver and titanium dioxide nanoparticles: enhancing or reducing environmental risks?
Xiaoyan Zou et al.
Aquatic toxicology (Amsterdam, Netherlands), 154, 168-175 (2014-06-09)
Due to their bactericidal and photocatalytic characteristics, silver nanoparticles (Ag NPs) and titanium dioxide nanoparticles (TiO2 NPs) are widely used in the fields of environment and physiology. Once these untreated nanoparticles are released into an aquatic environment and encounter one
Hongbo Shi et al.
Particle and fibre toxicology, 10, 15-15 (2013-04-17)
Titanium dioxide (TiO2) nanoparticles (NPs) are manufactured worldwide in large quantities for use in a wide range of applications. TiO2 NPs possess different physicochemical properties compared to their fine particle (FP) analogs, which might alter their bioactivity. Most of the
Maria Menini et al.
The International journal of prosthodontics, 28(1), 37-39 (2015-01-15)
This in vitro study evaluated the adhesive strength of a technique to lute implant cylinders to metal frameworks in implant-supported prostheses and ensure a good passive fit. Different height samples were tested: In group 1, implant cylinders were 5 mm
Bin Xia et al.
The Science of the total environment, 508, 525-533 (2014-12-09)
The toxicity of TiO2 engineered nanoparticles (NPs) to the marine microalga Nitzschia closterium was investigated by examining growth inhibition, oxidative stress and uptake. The results indicated that the toxicity of TiO2 particles to algal cells significantly increased with decreasing nominal
Collin D Kraus et al.
American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics, 145(5), 655-666 (2014-05-03)
The purpose of this study was to evaluate the biologic response of dentoalveolar bone to archwire expansion with light-to-moderate continuous forces. With a split-mouth experimental design, the maxillary right second premolars of 7 adult male dogs were expanded for 9
A Verma et al.
Chemosphere, 109, 7-13 (2014-05-31)
The investigation presents the observations on the use of cement beads for the immobilization of TiO2 for the degradation of herbicide isoproturon. The immobilized system was effective in degrading and mineralizing the herbicide for continuous thirty cycles without losing its
Luigi De Nardo et al.
The International journal of artificial organs, 35(9), 629-641 (2012-10-16)
The natural oxide layer on implantable alloys insulates the reactive underlying metal from the physiological environment, preventing substrate corrosion and device failure. This type of oxide film has had a major role in the minimization of functional failure and toxic
HaeYong Kweon et al.
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons, 72(10), 1928-1936 (2014-09-23)
The objective of this study was to compare bone formation after installation of uncoated (UC), hydroxyapatite-coated (HA), collagen plus HA-coated (CH), and silk plus HA-coated (SH) implants. Implants in the UC group had acid-etched surfaces. Surface coating was applied using
J Rashid et al.
Environmental technology, 35(17-20), 2153-2159 (2014-08-26)
InVO4/TiO2 composite was synthesized via amalgamation of InVO4 with TiO2 (Degussa P-25) powders. Application of the produced composite was evaluated as a catalyst for visible-light photocatalytic degradation of 2-chlorophenol (2-CP) in synthetic wastewater solutions. The catalyst was characterized by X-ray
G Janer et al.
Toxicology letters, 228(2), 103-110 (2014-05-06)
Large efforts are invested on the development of in vitro tests to evaluate nanomaterial (NM) toxicity. In order to assess the relevance of the adverse effects identified in in vitro toxicity tests a thorough understanding of the biokinetics of NMs
Deniss Klauson et al.
Environmental technology, 35(17-20), 2237-2243 (2014-08-26)
Photocatalytic water splitting for hydrogen and oxygen production requires sacrificial electron donors, for example, organic compounds. Titanium dioxide catalysts doped with platinum, cobalt, tungsten, copper and iron were experimentally tested for the production of hydrogen, oxygen and low molecular weight
Chuanlong Wu et al.
Biochemical pharmacology, 93(1), 59-71 (2014-12-03)
Titanium (Ti) particle-induced periprosthetic osteolysis and subsequent aseptic loosening are a primary reason for total hip arthroplasty failure. The aim of this study was to assess the effect of myricetin on Ti particle-induced osteolysis and osteoclastogenesis. We demonstrated that myricetin
Shinya Kato et al.
Journal of nanoscience and nanotechnology, 14(5), 3285-3291 (2014-04-17)
Microcorpuscular titanium dioxide (TiO2), a useful sunscreen agent, photocatalyzes generation of reactive oxygen species (ROS). We assessed protective effects of fullerene-C60 derivatives or microcolloidal platinum (Pt) against ultraviolet ray (UV)-irradiation in the presence of TiO2 in vitro. UV-irradiation (8 J/cm2
Robert M Hinkle et al.
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons, 72(8), 1495-1502 (2014-07-20)
The aim of this study was to test whether early loading (21 days after insertion) of implants with a hydrophilic surface is safe and reliable in a general clinical practice setting. This was a prospective multicenter clinical trial conducted in
Andreas Worni et al.
The International journal of prosthodontics, 28(1), 22-29 (2015-01-15)
The purpose of this study was to analyze the removal of implant-supported crowns retained by three different cements using an air-accelerated crown remover and to evaluate the patients' response to the procedure. This controlled clinical trial was conducted with 21
Katarzyna Gurzawska et al.
Journal of biomedical nanotechnology, 8(6), 1012-1024 (2012-10-04)
Long-term stability of titanium implants are dependent on a variety of factors. Nanocoating with organic molecules is one of the method used to improve osseointegration. Nanoscale modification of titanium implants affects surface properties, such as hydrophilicity, biochemical bonding capacity and
Gracia Márquez et al.
Chemosphere, 113, 71-78 (2014-07-30)
Aqueous solutions of mixtures of four pharmaceutical compounds (atenolol, hydrochlorothiazide, ofloxacin and trimethoprim) both in Milli-Q ultrapure water and in a secondary effluent from a municipal wastewater treatment plant have been treated at pH 7 by different oxidation methods, such
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