Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)Coated Materials, Biocompatible: Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.Osseointegration: The growth action of bone tissue as it assimilates surgically implanted devices or prostheses to be used as either replacement parts (e.g., hip) or as anchors (e.g., endosseous dental implants).Surface Properties: Characteristics or attributes of the outer boundaries of objects, including molecules.Dental Casting Technique: The process of producing a form or impression made of metal or plaster using a mold.Dental Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.Materials Testing: The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.Dental Implants: Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth.Corrosion: The gradual destruction of a metal or alloy due to oxidation or action of a chemical agent. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Dental Casting Investment: Material from which the casting mold is made in the fabrication of gold or cobalt-chromium castings. (Boucher's Clinical Dental Terminology, 4th ed, p168)Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Prostheses and Implants: Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.Dental Materials: Materials used in the production of dental bases, restorations, impressions, prostheses, etc.Electroplating: Coating with a metal or alloy by electrolysis.Implants, Experimental: Artificial substitutes for body parts and materials inserted into organisms during experimental studies.Dental Prosthesis Design: The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.Nanotubes: Nanometer-sized tubes composed of various substances including carbon (CARBON NANOTUBES), boron nitride, or nickel vanadate.Dental Soldering: The joining of pieces of metal through the use of an alloy which has a lower melting point, usually at least 100 degrees Celsius below the fusion temperature of the parts being soldered. In dentistry, soldering is used for joining components of a dental appliance, as in assembling a bridge, joining metals to orthodontic bands, or adding to the bulk of certain structures, such as the establishment of proper contact areas on inlays and crowns with adjacent teeth. (Illustrated Dictionary of Dentistry, 1982)Microscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Metal Ceramic Alloys: The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.Biocompatible Materials: Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.Spectrometry, X-Ray Emission: The spectrometric analysis of fluorescent X-RAYS, i.e. X-rays emitted after bombarding matter with high energy particles such as PROTONS; ELECTRONS; or higher energy X-rays. Identification of ELEMENTS by this technique is based on the specific type of X-rays that are emitted which are characteristic of the specific elements in the material being analyzed. The characteristic X-rays are distinguished and/or quantified by either wavelength dispersive or energy dispersive methods.Stainless Steel: Stainless steel. A steel containing Ni, Cr, or both. It does not tarnish on exposure and is used in corrosive environments. (Grant & Hack's Chemical Dictionary, 5th ed)Dental Polishing: Creation of a smooth and glossy surface finish on a denture or amalgam.Durapatite: The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.Apatites: A group of phosphate minerals that includes ten mineral species and has the general formula X5(YO4)3Z, where X is usually calcium or lead, Y is phosphorus or arsenic, and Z is chlorine, fluorine, or OH-. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Zirconium: Zirconium. A rather rare metallic element, atomic number 40, atomic weight 91.22, symbol Zr. (From Dorland, 28th ed)Electron Probe Microanalysis: Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a wavelength characteristic of that element and an intensity related to its concentration. It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode.Dental Stress Analysis: The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.Hardness: The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.Quartz: Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)Electrolysis: Destruction by passage of a galvanic electric current, as in disintegration of a chemical compound in solution.Porosity: Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.Osteoblasts: Bone-forming cells which secrete an EXTRACELLULAR MATRIX. HYDROXYAPATITE crystals are then deposited into the matrix to form bone.Dental Implantation, Endosseous: Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment.Tantalum: Tantalum. A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices. (Dorland, 28th ed)Bone Plates: Implantable fracture fixation devices attached to bone fragments with screws to bridge the fracture gap and shield the fracture site from stress as bone heals. (UMDNS, 1999)Dental Abutments: Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.Crowns: A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.Metal Nanoparticles: Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.Prosthesis Design: The plan and delineation of prostheses in general or a specific prosthesis.Hip Prosthesis: Replacement for a hip joint.Particle Size: Relating to the size of solids.Silver: Silver. An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA.Electrogalvanism, Intraoral: Chemical reaction that occurs when saliva comes into contact with the metals in dental fillings. This reaction can send electric currents through the brain causing negative symptoms.Gold Alloys: Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.Electrochemical Techniques: The utilization of an electrical current to measure, analyze, or alter chemicals or chemical reactions in solution, cells, or tissues.Wettability: The quality or state of being wettable or the degree to which something can be wet. This is also the ability of any solid surface to be wetted when in contact with a liquid whose surface tension is reduced so that the liquid spreads over the surface of the solid.Magnesium Oxide: Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.Nanoparticles: Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.Vitallium: An alloy of 60% cobalt, 20% chromium, 5% molybdenum, and traces of other substances. It is used in dentures, certain surgical appliances, prostheses, implants, and instruments.Prosthesis Failure: Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.Silicon Compounds: Inorganic compounds that contain silicon as an integral part of the molecule.Bone Substitutes: Synthetic or natural materials for the replacement of bones or bone tissue. They include hard tissue replacement polymers, natural coral, hydroxyapatite, beta-tricalcium phosphate, and various other biomaterials. The bone substitutes as inert materials can be incorporated into surrounding tissue or gradually replaced by original tissue.Bone Screws: Specialized devices used in ORTHOPEDIC SURGERY to repair bone fractures.Niobium: Niobium. A metal element atomic number 41, atomic weight 92.906, symbol Nb. (From Dorland, 28th ed)Dental Etching: Preparation of TOOTH surfaces, and of materials bonded to teeth or DENTAL IMPLANTS, with agents and methods which roughen the surface to facilitate adhesion. Agents include phosphoric or other acids (ACID ETCHING, DENTAL) and methods include LASERS.Carbon Compounds, Inorganic: Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons.Argon: Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.Computer-Aided Design: The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.Osteogenesis: The process of bone formation. Histogenesis of bone including ossification.
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... or titanium coated with calcium phosphate derivatives. It was previously thought that titanium implants were retained in bone ... Thuvander, M; Andersson, M (2014). "Atomically resolved tissue integration". Nano Lett. 14 (8): 4220-4223. doi:10.1021/ ... Leventhal placed titanium screws in rat femurs and remarked how "At the end of 6 weeks, the screws were slightly tighter than ... were the first researchers to implant titanium in an animal and remarked how it had the tendency to fuse with bone. Bothe et al ...
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Du H, Ding K.Org Lett. 2003 Apr 3;5(7):1091-3. doi:10.1021/ol034143c Asymmetric hetero Diels-Alder reactions of Danishefsky's ... Alder Reaction of Aldehydes with Danishefsky's Diene Catalyzed by Chiral Titanium(IV) 5,5',6,6',7,7',8,8'-Octahydro-1,1'-bi-2- ... Amii H, Kobayashi T, Terasawa H, Uneyama K. Org Lett. 2001 Oct 4;3(20):3103-5. doi:10.1021/ol0163631. ...
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Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton ... Lett. 88 (18): 183001. Bibcode:2002PhRvL..88b3001M. doi:10.1103/PhysRevLett.88.023001. PMID 12005680.. ... In 1899, Debierne described the substance as similar to titanium[26] and (in 1900) as similar to thorium.[27] Friedrich Oskar ... Some Elements Isolated with the Aid of Potassium and Sodium:Zirconium, Titanium, Cerium and Thorium". The Journal of Chemical ...
Kenwood Chef Titanium XL gir inspirasjon til matlagingen. ... Oppdag Kenwood Titanium XL -KVL300S kjøkkenmaskin, et praktisk ... Alt er lett tilgjengelig. Chef Titanium blir komplett med SYSTEMPRO-boller i rustfritt stål som hjelper deg å elte, piske, ... Titanium XL KVL8300S Å lage mat handler om inspirasjon og kreativitet. Tanken på et lekkert måltid inspirerer deg til å legge ... Titanium Chef Patissier XL (2). Chef & Chef XL Kjøkkenmaskiner (16). kMix Kjøkkenmaskiner (9). Multi One (2). Chef & Chef XL ...
B. Patterson, S. Marumoto & S. D. Rychnovsky (2003). "Titanium(IV)-Promoted Mukaiyama Aldol-Prins Cyclizations". Org. Lett. 5 ( ... Titanium tetrabromide is the chemical compound with the formula TiBr4. It is the most volatile transition metal bromide. The ... Titanium tetrabromide forms adducts such as TiBr4(THF)2 and [TiBr5]−. With bulky donor ligands, such as 2-methylpyridine (2- ... S. P. Webb & M. S. Gordon (1999). "Intermolecular Self-Interactions of the Titanium Tetrahalides TiX4 (X = F, Cl, Br)". J. Am. ...
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Their calculations show that this occurs if the amount of titanium atoms in the material exceeds that of oxygen atoms by at ... Computer simulations predict that compounds made of oxygen and titanium atoms form cages that can host electrons in their ... have investigated the possibility for materials belonging to the family of titanium dioxide, a pigment used in paints and ... Lett. 58, 1861-1864 (1987).. CAS Article Google Scholar *. 28.. Bader, R. F. W., Popelier, P. L. A. & Keith, T. A. Theoretical ...
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Titania nanotubes were produced on pure titanium sheets by anodization at room temperature. In this research, the electrolyte ... composition ethylene glycol 250 mL/NH4F 1.5 g/DI water 20 mL was found to produce the best titania nanotubes array films for ... The purpose of this study was to develop novel nanoscale biosensors using titania nanotubes (TNTs) made by anodization. ... Lett. 2011, 9, 41-45. [Google Scholar]. *Mohamed, A.E.R.; Rohani, S. Synthesis of titania nanotube arrays by anodization. AIDIC ...
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  • The samples have been characterized in depth, looking for correlations between the main physicochemical properties (TiO2 crystallite size, band gap energy and titania surface area) and the activity shown in the photocatalytic oxidation of cyanide, selected as model pollutant. (scientific.net)
  • Titanium dioxide (TiO2) is widely used in consumer products, as it is non-toxic - even though it triggers allergies in certain people. (ceraroot.com)
  • The black-dashed inset shows a structural model of the amorphous titania shell, with the red circles corresponding to oxygen atoms and the green and blue polyhedra corresponding to undercoordinated and coordinated titanium atoms, respectively. (materialstoday.com)
  • However, because the ultrathin titania layer is not crystalline, they needed to use other methods to decipher its 'amorphous' structure. (materialstoday.com)
  • Nanodisperse modified titanium dioxide ranging in specific surface from 70 to 130 m 2 /g has been prepared by a sol-gel process using Al(NO 3 ) 3 and H 3 PO 4 as modifying components and dodecylamine and ammonium carbonate as structuring components. (springer.com)
  • This short review paper shows the significance of recombination of a photoexcited electron and a hole in conduction and valence bands, respectively, of a titania photocatalyst, since recombination has not yet been fully understood and has not been evaluated adequately during the past several decades of research on heterogeneous photocatalysis. (mdpi.com)
  • As a result of these properties, titania finds a wide range of applications in white/opaque pigments, coatings and sunscreens (protection from UV radiation), antifogging coatings, ceramic filtration membranes, antimicrobial coatings, photocatalysis, and photovoltaics (e.g., dye-sensitized solar cells-DSCs). (sigmaaldrich.com)
  • Titanium dioxide photocatalysis in atmospheric chemistry. (semanticscholar.org)
  • A mild solvothermal route to nanocrystalline titanium diboride" J. Alloy. (wikipedia.org)
  • In order to obtain a robust dissimilar joint between titanium and aluminum alloy, a method of resistance spot welding with a cover plate were used to weld two kinds of material. (scientific.net)
  • Sonocatalytic injury of cancer cells attached on the surface of a nickel-titanium dioxide alloy plate. (semanticscholar.org)
  • Using a titanium‐zirconium‐molybdenum (TZM) alloy as sintering tool, it was possible to increase the magnitude of the applied pressure to several hundred MPa at temperatures as high as 1223 K. A relative density of up to 99.9% was achieved at a sintering temperature of 1223 K and a pressure of 395 MPa. (imtek.de)
  • To explore the preparation of porous nickel-titanium alloy with excellent properties, larger size and complex shape, the premixed powder of Ni and Ti with atomic ratio of 1:1 was shaped by gel-casting. (springerprofessional.de)
  • Zwilling V., Aucouturier M., Darque-Ceretti E.: Anodic oxidation of titanium and TA6V alloy in chromic media. (sigma-not.pl)
  • 9. The method of claim 1 , wherein atomic layer depositing a storage layer includes atomic layer depositing titanium silicon nitride. (google.com)
  • A non-reflecting material, e.g. titanium nitride is formed on the refractory metal. (google.ca)
  • Conventional photoresist techniques are used to pattern the titanium nitride, the titanium and polysilicon, and the titanium is reacted with the contacted polysilicon to form a titanium silicide. (google.ca)
  • A second layer of refractory metal, either titanium or some other refractory metal, is deposited over the source/drain region, and either over the titanium nitride, or over the first formed silicide by first removing the titanium nitride. (google.ca)
  • 7. The process as described in claim 2 further characterized by said non-reflecting material being titanium nitride. (google.ca)
  • M. R. Vissers, J. Gao, J. S. Kline, M. O. Sandberg, M. P. Weides, D. S. Wisbey, D. P. Pappas, "Characterization and in-situ monitoring of sub-stoichiometric adjustable superconducting critical temperature titanium nitride growth", Thin Solid Films 548, 485 (2013). (slu.edu)
  • Titanium dioxide is a hydrophilic photocatalyst, which means that when in contact with water vapor in the cloud, it helps to initiate and sustain the water vapor adsorption and condensation on the nanoparticle's surface. (frogheart.ca)
  • Titanium and its alloys have been extensively used as biomaterials in bone surgery throughout recent decades because of their generally good biocompatibility, which is mainly attributed to two facts. (royalsocietypublishing.org)
  • Several studies show that titanium alloys contain traces of nickel as a result of the production process. (melisa.org)
  • Nevertheless, since the toxicity of aluminum and vanadium has been reported by several studies [ 3 , 4 ], new Al and V free beta-type titanium based alloys have been developed. (epjap.org)
  • Generally titanium based alloys are used after a specific coating treatment to enhance their ability to form chemical strong bonds with living bone [ 13 - 16 ]. (epjap.org)
  • Several studies have focused on the modifications induced by nitrogen implantation in titanium and titanium alloys and all of them reported an improvement of mechanical properties [ 17 - 19 ]. (epjap.org)
  • Titanium and its alloys are exploited in several technological fields ranging from aerospace and chemical industries to bone implant materials, because of their excellent properties and efficient performance in widespread applications [1, (orientjchem.org)
  • The biological, mechanical and physical properties of titanium and its alloys play significant roles in the longetivity of the prostheses and implants . (orientjchem.org)
  • If you are planning to have a test before receiving a titanium implant it is advised to find out the exact composition of the implant. (melisa.org)
  • To understand the mechanism governing the photocatalytic activity of these materials, several titania-silica photocatalysts have been prepared through a sol-gel method that allows controlling the main variables to obtain materials with different textural properties, degree of titania incorporation, dispersion of the photoactive phase and crystallinity of titanium dioxide. (scientific.net)
  • 3. The precursor composition according to claim 1 , wherein said TiO 2 precursor compound is selected from a group consisting of titanium isopropoxide, titanium ethoxide, titanium chloride, and titanium butoxide. (google.es)
  • Titanium chloride. (cdc.gov)
  • In contrast to that, only a few reports were published to refer an efficient realization of cross-pinacol coupling reactions to yield the corresponding unsymmetrical 1,2-diols (titanium(IV) chloride/manganese 5 , samarium(II) iodide 6 , magnesium/trimethylchlorosilane 7 , vanadium(II) 8 , zirconium/tin 9 , and ytterbium 10 ). (jove.com)
  • We report here the reaction of a trinuclear titanium polyhydride complex with dinitrogen, which induces dinitrogen cleavage and partial hydrogenation at ambient temperature and pressure. (sciencemag.org)
  • Uniformly coating them with ultrathin films of titania, another low-cost material that is chemically more stable and more active in promoting interfacial charge transfer, enhances these properties to boost reaction efficiency by 20% compared to pure ZnO nanowires. (materialstoday.com)
  • This can pose trigger health problems in patients with nickel allergy, and also mean that a reaction may be falsely attributed to titanium itself. (melisa.org)
  • Titanium diboride (TiB2) is an extremely hard ceramic which has excellent heat conductivity, oxidation stability and resistance to mechanical erosion. (wikipedia.org)
  • The effects of solids loading and the content of dispersant on flow ability of nickel-titanium slurry and the mechanical properties of nickel-titanium sintered body were studied. (springerprofessional.de)
  • Dr. Zou and her collaborators, Dr. Mustapha Jouiad, Principal Research Scientist in Mechanical and Materials Engineering Department, postdoctoral researcher Dr. Nabil El Hadri and PhD student Haoran Liang, explored ways to improve the process of condensation on a pure salt crystal by layering it with a thin coating of titanium dioxide. (frogheart.ca)
  • A New Mechanism for the Alpha to Omega Martensitic Transformation in Pure Titanium. (nersc.gov)
  • Additionally, the evaluation of the fraction of the total surface area corresponding to titania is mandatory for comparing the catalytic activity of different materials in processes in which titanium dioxide is the only phase catalytically active and silica behaves as an inert support. (scientific.net)
  • In the presence of a rhodium/(S)-binap catalyst in THF at 20 8C, the catalytic 1,4-addition gives titanium enolates as 1,4-addition products with high enantioselectivity. (docme.ru)
  • Herein we report another rhodium-catalyzed asymmetric arylation in which the addition of aryl titanium reagents to sulfonylimines proceeds with high enantioselectivity under mild conditions (20 8C, 1 h) to give diarylmethyl amines with up to 96 % ee. (docme.ru)
  • Recently, we have discovered that burning coal generates large quantities of otherwise rare Magnéli phase titanium suboxides from TiO 2 minerals naturally present in coal. (frontiersin.org)
  • TiB2 is very similar to titanium carbide, an important base material for cermets, and many of its properties (e.g. hardness, thermal conductivity, electrical conductivity and oxidation resistance) are superior to those of TiC: Exceptional hardness (25-35 GPa Vickers at room temperature, more than three times harder than fully hardened structural steel), which is retained up to high temperature. (wikipedia.org)
  • Therefore, this paper highlights, in the first part, advantages and limits of the currently applied methods for the biological nano-functionalization of titanium-based biomaterial surfaces. (royalsocietypublishing.org)
  • Preparation of titanium diboride TiB2 by spark plasma sintering at slow heating rate" Sci. (wikipedia.org)
  • see the Perspective by Fryzuk ) instead explored the reactivity of a titanium hydride cluster, which cleanly slices through N 2 at room temperature and incorporates the separated N atoms into its framework. (sciencemag.org)