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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
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
Małgorzata M Dobrzyńska et al.
Toxicology, 315, 86-91 (2013-12-11)
Although nanomaterials have the potential to improve human life, their sideline effects on human health seem to be inevitable and still remain unknown. This study aimed to investigate the cytotoxicity and genotoxicity of titanium dioxide (TiO2) and silver (Ag) nanoparticles
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
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
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
R Shukla et al.
The International journal of neuroscience, 116(12), 1391-1402 (2006-12-06)
Evidence from clinical and experimental studies supports the hypothesis of free radical-mediated damage of dopaminergic neurons in the pathology of Parkin's disease (PD). The present study was undertaken to evaluate the role of nitric oxide and oxidative stress in PD.
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
Abnormal trace metals in man: titanium.
H A SCHKROEDER et al.
Journal of chronic diseases, 16, 55-69 (1963-01-01)
Enrico Coser Bridi et al.
American journal of dentistry, 26(3), 121-126 (2013-08-31)
To evaluate the effect of dentin pretreatment with 2.5% titanium tetrafluoride (TiF4) on microtensile bond strength (microTBS) of one- or two-step self-etching adhesive systems. 24 human sound third molars were used. A flat dentin surface of each tooth was exposed.
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
[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)
Alejandra Navarro-Palacios 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, 146(1), 92-97 (2014-07-01)
Orthodontic tooth movement implies application of forces that generate an inflammatory process. The myeloperoxidase (MPO) enzyme is found inside neutrophil granules. MPO activity indirectly reflects the level of inflammation. The aim of this study was to measure MPO activity in
R M Mohamed et al.
Journal of nanoscience and nanotechnology, 13(7), 4975-4980 (2013-08-02)
The photo-assisted deposition (PAD) and impregnation (Img) synthesis of nano-sized Cu metal on TiO2-SiO2 are reported. The prepared catalysts were characterized by different techniques such as XRD, EXAFS, TEM and nitrogen adsorption analysis. Photocatalytic reactivity using Cu-TiO2-SiO2 catalysts under visible-light
Leila Alibabaei et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(50), 20008-20013 (2013-11-28)
Artificial photosynthesis and the production of solar fuels could be a key element in a future renewable energy economy providing a solution to the energy storage problem in solar energy conversion. We describe a hybrid strategy for solar water splitting
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
D A Loeffler et al.
Journal of neural transmission. Parkinson's disease and dementia section, 9(1), 45-53 (1995-01-01)
Though depletion of CSF homovanillic acid (HVA) concentration has often been regarded as a direct indicator of dopamine (DA) deficiency in Parkinson's Disease (PD), CSF HVA is normal in mildly affected patients. To explore why, we measured DA and its
H U Shetty et al.
Clinical chemistry, 42(2), 298-302 (1996-02-01)
Previous studies suggest the presence of increased concentrations of cerebral myo-inositol in Alzheimer disease (AD). To characterize this abnormality further, we quantified myo-inositol and several other polyols in cerebrospinal fluid (CSF) and plasma from 10 AD subjects and 10 healthy
Y Kotake et al.
Journal of neurochemistry, 65(6), 2633-2638 (1995-12-01)
1-Benzyl-1,2,3,4-tetrahydroisoquinoline (1BnTIQ) was detected as a novel endogenous amine in mouse brain and parkinsonian CSF by using the gas chromatography-selected ion-monitoring method. The level of 1BnTIQ was very high in CSF of some parkinsonian patients compared with that of controls
Jasna Dolenc Koce et al.
Environmental toxicology and chemistry, 33(4), 858-867 (2014-05-10)
The effect of ultraviolet-A irradiated or nonirradiated suspensions of agglomerates of titanium dioxide (TiO(2)) or silicon dioxide (SiO(2)) nanoparticles on roots of the onion (Allium cepa) has been studied. The reactive potential of TiO(2) nanoparticles, which have photocatalytic potential, and
Lihong Zhu et al.
Journal of nanoscience and nanotechnology, 13(7), 5104-5108 (2013-08-02)
Improving photocatalytic activity and stability of TiO2/Cu2O composite is a challenge in generating hydrogen from water. In this paper, the TiO2 film/Cu2O microgrid composite was prepared via a microsphere lithography technique, which possesses a remarkable performance of producing H2 under
Zahed Mohammadi et al.
The New York state dental journal, 80(3), 39-43 (2014-06-18)
The purpose of the study presented here was to evaluate the effect of Tetraclean, Hypoclean, Chlor-XTRA, 2% chlorhexidine and 6% sodium hypochlorite/17% EDTA as a final irrigant on bacterial leakage of the root canal. One hundred and fifty-five extracted human
Johannes Levin et al.
Dementia and geriatric cognitive disorders, 29(6), 553-559 (2010-07-08)
Increasing evidence suggests that elevated levels of homocysteine (Hcy) and methylmalonate (MMA) may be involved in the pathogenesis of neurodegenerative diseases. The urine levels of MMA and serum levels of Hcy as well as folic acid and vitamin B(12) were
Wen Zhang et al.
The Analyst, 129(3), 229-234 (2004-02-24)
The fabrication and application of a novel electrochemical detector (ED) with nano crystalline Ce-doped lead dioxide film chemically modified electrode (CME) for liquid chromatography (LC) were described. The Ce-doped PbO(2) film was characterized by X-ray diffractometer (XRD) and scanning tunnel
Seung Jun Lee et al.
Journal of nanoscience and nanotechnology, 13(11), 7664-7668 (2013-11-20)
We investigate nano-sized double layer anti-reflection coatings (ARCs) using a TiO2 and SiO2 sol-gel solution process for mono-crystalline silicon solar cells. The process can be easily adapted for spraying sol-gel coatings to reduce manufacturing cost. The spray-coated SiO2/TiO2 nano-sized double
Aaron F Cipriano et al.
Journal of biomedical nanotechnology, 10(4), 660-668 (2014-04-17)
The objective of this study was to investigate the adhesion and morphology of bone marrow derived stromal cells (BMSCs) on bulk titanium (Ti) substrates with precisely-patterned surfaces consisting of groove-based gratings with groove widths ranging from 50 micro m down
Dan Xu et al.
Journal of nanoscience and nanotechnology, 14(6), 4692-4699 (2014-04-18)
The V-based complex oxides were found to exhibit good catalytic reactivity for the selective oxidation of benzene to phenol. In order to understand the effect of the catalyst on the reaction, a series of Ag/VO(x)-TiO2 catalysts with different Ag loadings
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页码 1 来自 8