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Diatom silica-titania materials for photocatalytic air purification.
E Van Eynde et al.
Communications in agricultural and applied biological sciences, 78(1), 141-147 (2013-07-24)
K J Bär et al.
Neurobiology of aging, 24(2), 333-338 (2002-12-25)
Increasing evidence suggests an interaction of oxidative stress and the formation of advanced glycation end products (AGE) in the onset and progression of Alzheimer's disease. We studied levels of pentosidine and N(epsilon)-(carboxymethyl)-lysine (CML) in serum and cerebrospinal fluid (CSF) of...
Beatrice Bocca et al.
Annali dell'Istituto superiore di sanita, 41(2), 197-203 (2005-10-26)
The haematic concentration of 26 metals and the oxidative damage in 60 patients (20 males and 40 females) affected by Alzheimer's disease and 44 healthy individuals (33 males and 11 females) were compared. In patients, the following significant (p <...
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...
Sang-Woon Lee et al.
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons, 72(1), 53-60 (2013-12-18)
The objective of this study was to compare peri-implant bone formation among uncoated (UC), hydroxyapatite (HA), collagen plus HA (CH), and collagen, HA, plus bone morphogenetic protein-2 (BMP-2) implant groups. Implants in the UC group had acid-etched surfaces. The surface...
Judith S Angelstorf et al.
Environmental toxicology and chemistry, 33(10), 2288-2296 (2014-06-20)
The increasing use of engineered nanoparticles in industrial and consumer products leads to a release of the anthropogenic contaminants to the aquatic environment. To obtain a better understanding of the environmental effects of these particles, the nematode Caenorhabditis elegans was...
S Agarwal et al.
The bone & joint journal, 95-B(12), 1640-1644 (2013-12-03)
Bone loss in the proximal tibia and distal femur is frequently encountered in revision knee replacement surgery. The various options for dealing with this depend on the extent of any bone loss. We present our results with the use of...
Alex T Kuvarega et al.
Journal of nanoscience and nanotechnology, 13(7), 5017-5027 (2013-08-02)
Nitrogen, osmium co-doped TiO2 photocatalysts were prepared by a modified sol-gel method using ammonia as the nitrogen source and osmium tetroxide as the source of osmium. The role of rutile phase OsO2 in enhancing the photocatalytic activity of rutile TiO2...
C E Shaw et al.
Journal of neurology, 242(2), 53-58 (1995-01-01)
Magnetic resonance imaging of multiple sclerosis (MS) patients often shows active inflammatory lesions despite clinical remission. No immunological marker of disease activity has been identified in these patients. Concentrations of neopterin, interleukin-2 (IL-2), soluble interleukin-2 receptor (sIL-2R) and tumour necrosis...
Haijun Zhang et al.
Journal of biomedical nanotechnology, 10(8), 1450-1457 (2014-07-16)
The TiO2 and ZnO nanoparticles are the most promising next-generation photodynamic therapy (PDT) photosensitizers. This paper reports a one-to-one comparison of TiO2 and ZnO nanoparticles as photosensitizers in photodynamic therapy of cancer. After incubating SMMC-7721 hepatocarcinoma cells with TiO2 and...
Gregory M Malham et al.
Journal of neurosurgery. Spine, 21(6), 851-860 (2014-10-04)
The use of recombinant human bone morphogenetic protein-2 (rhBMP-2) in anterior lumbar interbody fusion (ALIF) is controversial regarding the reported complication rates and cost. The authors aimed to assess the complication rates of performing ALIF using rhBMP-2. This is a...
Habib Hajimiragha et al.
The Journal of oral implantology, 40(5), 525-532 (2013-01-16)
The present study was done to evaluate the effects of different types of abutments on the rate and distribution of stress on the bone surrounding the implant by dynamic finite element analysis method. In this study two ITI abutment models-one-piece...
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...
Selin Munir et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 33(1), 98-105 (2014-10-17)
Modular hip implants allows for the adjustment of leg length, offset, and the ability to remove the head for acetabular exposure during primary and revision surgery. The design of the Morse taper facilitates the intimate contact of the conical trunnion...
Raidan Ba-Hattab et al.
BMC oral health, 13, 72-72 (2013-12-18)
Efforts to improve the performance of rotary NiTi instruments by enhancing the properties of NiTi alloy, or their manufacturing processes rather than changes in instrument geometries have been reported. The aim of this study was to compare in-vitro the shaping...
P A LeWitt et al.
Neurology, 42(11), 2111-2117 (1992-11-01)
We used two analytic methods (a multichannel coulometric electrode array with high-performance liquid chromatography, and gas chromatography-mass spectrophotometry) to measure CSF dopamine (DA) and its metabolites in mildly affected, unmedicated subjects with Parkinson's disease (PD). The mean (+/- SD) concentration...
Jayakanth Ravichandran et al.
Nature materials, 13(2), 168-172 (2013-12-10)
Elementary particles such as electrons or photons are frequent subjects of wave-nature-driven investigations, unlike collective excitations such as phonons. The demonstration of wave-particle crossover, in terms of macroscopic properties, is crucial to the understanding and application of the wave behaviour...
Takahiro Ogawa
The International journal of oral & maxillofacial implants, 29(1), e95-102 (2014-01-24)
In the face of growing demands and challenges in implant therapy, implant surfaces with improved biologic capabilities are required. This review paper summarizes the findings of recent in vitro and in vivo studies related to ultraviolet (UV) photofunctionalization of titanium....
Zhao Shifang et al.
Journal of biomedical nanotechnology, 10(7), 1313-1319 (2014-05-09)
The aim of this study was to deposit simvastatin-hydroxyapatite (sim-HA) coatings on titanium surfaces by an electrochemical process and evaluate osteoprogenitor cell responses to sim-HA-coated surfaces. Simvastatin was prepared onto titanium surfaces with varying concentration (10(-7), 10(-6), 10(-5) and 10(-4)...
Alina Floarea-Strat et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 107(3), 518-523 (2004-02-06)
It is a disease of obscure cause that is characterized by the accumulation of a granular material that contains abundant lipid within the alveoli of lung. Pulmonary alveolar proteinosis (PAP) has been divided into a congenital and an adult form....
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...
Fabiano Ribeiro Cirano et al.
The Journal of oral implantology, 40(6), 655-659 (2014-12-17)
This study analyzed the role of recombinant human bone morphogenetic protein 2 (rhBMP-2) and recombinant human bone morphogenetic protein 7 (rhBMP-7) in the adhesion and differentiation of rat osteoblast-like (osteo-1) cells cultured on chemically modified titanium surfaces. Osteo-1 cells were...
Guillermo Manzano et al.
The International journal of oral & maxillofacial implants, 29(2), 311-320 (2014-04-01)
This study aimed to compare the values of removal torque (RT) and bone-implant contact (BIC) reported in different animal studies for zirconia and titanium implants. A systematic review of the literature was performed to analyze BIC and RT of animal...
Jingan Li et al.
Biochemical and biophysical research communications, 456(2), 555-561 (2014-12-03)
Endothelialization has been considered a promising method to improve the biocompatibility of vascular implanted biomaterials. However, little is known about the anti-coagulation, anti-inflammatory, anti-atherosclerosis and anti-shedding property of the attached endothelial cells (ECs) and the relationship with their bio-environment and...
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...
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...
Konstantinos X Michalakis et al.
The Journal of oral implantology, 40(2), 146-152 (2014-05-02)
Dental implants with an internal connection have been designed to establish a better stress distribution when lateral external forces act on the prosthesis and minimize the forces transmitted to the fastening screw. In the present study, 10 externally and 10...
A N Fonteh et al.
Amino acids, 32(2), 213-224 (2006-10-13)
Our aim was to determine changes in free amino acid (FAA) and dipeptide (DP) concentrations in probable Alzheimer's disease (pAD) subjects compared with control (CT) subjects using liquid chromatography and electrospray ionization tandem mass spectrometry (LCMS2). We recruited gender- and...
Zong Xiang Liu et al.
The Chinese journal of dental research : the official journal of the Scientific Section of the Chinese Stomatological Association (CSA), 17(2), 111-116 (2014-12-23)
To evaluate morphological changes of the apical surface after root canal preparation with 1 mm beyond the apical foramen using ProTaper Universal (PTU) files, K3 files and Twisted files (TF), respectively. Seventy teeth with a centered apical foramen and 70...
Takashi Abe et al.
Neuroscience letters, 336(2), 105-108 (2002-12-25)
In order to investigate the possible role of oxidative RNA damage in the pathogenesis of Parkinson's disease (PD), the concentrations of the oxidative stress marker 8-hydroxyguanosine (8-OHG) were measured in the cerebrospinal fluid (CSF) and the serum of patients with...
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