|别名||钽粉/钽杆/钽丝 ;tantalum, metal tantalum foil|
|个人防护设备||Eyeshields,Gloves,type N95 (US),type P1 (EN143) respirator filter|
Urine has long been a "favored" biofluid among metabolomics researchers. It is sterile, easy-to-obtain in large volumes, largely free from interfering proteins or lipids and chemically compl...Read More
Learning from nature: The development of an MoS(2) /Ta(3) N(5) nanocomposite as a catalyst for selective aerobic oxidation by O(2) activation was inspired by the nitrogenase enzymes in nature. The s...Read More
Synthesis of 3-O-methylgallic acid a powerful antioxidant by electrochemical conversion of syringic acid.
A kinetic study of the electrochemical oxidation of syringic acid (3,5-dimethoxy-4-hydroxybenzoic acid) by cyclic voltammetry at treated gold disk was combined with results of electrolyses at Ta/PbO2 ...Read More
Here we present a surface based on double-layered nanoparticle stacks suitable for spectro-electrochemical applications. The structure is formed on a continuous gold layer by a two-dimensional periodi...Read More
Enhancement of adhesive strength of hydroxyapatite films on Ti-29Nb-13Ta-4.6Zr by surface morphology control.
Hydroxyapatite (HAp) films were deposited on a β-type titanium alloy, Ti-29Nb-13Ta-4.6Zr (TNTZ), by metal organic chemical vapor deposition (MOCVD) in order to improve its hard-tissue compatibility. ...Read More
Trace element reference values in tissues from inhabitants of the European Community. II. Examples of strategy adopted and trace element analysis of blood, lymph nodes and cerebrospinal fluid of Italian subjects.
The EURO TERVIHT (Trace Element Reference Values in Human Tissues), recently initiated, aims to establish and compare trace metal reference values in inhabitants from the different EC countries. The p...Read More
In this paper, we investigated the optical and structural properties of the Ag:Ta2O5 nanocomposites. The nanocomposite films were prepared by magnetron co-sputtering of Ta2O5 with Ag chips. The transm...Read More
Onyx injection by direct puncture for the treatment of hypervascular spinal metastases close to the anterior spinal artery: initial experience.
Presurgical devascularization of hypervascular spinal metastases has been shown to be effective in preventing major blood loss during open surgery. Most often, embolization can be performed using poly...Read More
Plugging and sealing technique by Onyx to prevent type II endoleak in ruptured abdominal aortic aneurysm.
Control of back bleeding from the hypogastric artery into the aneurysm after endovascular aneurysm repair (EVAR) of a ruptured aorto-iliac aneurysm may be necessary in order to avoid a type II endolea...Read More
A photoelectron spectroscopy and density functional study of di-tantalum boride clusters: Ta(2)B(x) (-) (x = 2-5).
The structural and electronic properties for di-tantalum boride clusters Ta(2)B(x) (-) (x = 2-5) were investigated using photoelectron spectroscopy and density functional calculations. The photoelectr...Read More
One cross-linked polyethylene (XLPE) liner is manufactured using a lower dose of radiation, 5 Mrad, which may result in less cross-linking. The reported in vivo wear rate of this XLPE liner in patient...Read More
Transcatheter Embolisation of Type 1 Endoleaks after Endovascular Aortic Aneurysm Repair with Onyx: When No Other Treatment Option is Feasible.
Type 1 endoleaks following endovascular aortic aneurysm repair are associated with poor outcomes and re-intervention is recommended as soon as possible after diagnosis. When standard endovascular or s...Read More
A review of the current clinical applications of a variety of percutaneous and endovascular interventional procedures of the extracranial head and neck is presented. After a description of general pri...Read More
Re: Fernandez-Fairen M, Murcia A, Torres A, et al. Is anterior cervical fusion with a porous tantalum implant a cost-effective method to treat cervical disc disease with radiculopathy? Spine 2012; 37:1734–41.
Quantized conductance was observed in a cation-migration-based resistive switching memory cell with a simple metal-insulator-metal (MIM) structure using a thin Ta(2)O(5) layer. The observed conductanc...Read More
Interest in soft tissue RadioStereometric Analysis (RSA) is rising. Previous studies have attempted to use this technique to analyse anterior cruciate ligament (ACL) graft constructs, and more recentl...Read More
Stabilization of a pelvic discontinuity with a posterior column plate with or without an associated acetabular cage sometimes results in persistent micromotion across the discontinuity with late fatig...Read More
Pt-like Behavior of High-Performance Counter Electrodes Prepared from Binary Tantalum Compounds Showing High Electrocatalytic Activity for Dye-Sensitized Solar Cells.
Ta-based compounds show Pt-like behavior: Binary tantalum compounds as counter electrodes (CEs) in dye-sensitized solar cells (DSCs) demonstrate Pt-like electrocatalytic activity and competitive photo...Read More
New insights into the initial stages of Ta oxide nanotube formation on polycrystalline Ta electrodes.
Ta oxide nanotubes (NTs) were formed by the anodization of Ta at 15 V in a solution of concentrated sulfuric acid containing 0.8-1.0 M hydrofluoric acid. To study the initial stages of NT formation, F...Read More
Titanium (Ti) alloys of the β-type are highly attractive metallic materials for biomedical applications due to their low elastic modulus, high corrosion resistance and notable...Read More
Concentration dependence in kinetic arrest of the first-order magnetic transition in Ta doped HfFe(2).
Magnetic behavior of the pseudo-binary alloy Hf(1-x)Ta(x)Fe(2) has been studied, for which the zero-field ferromagnetic (FM) to antiferromagnetic (AFM) transition temperature is tuned near to T?=?0?K...Read More
Microstructure and mechanical properties of laser deposited complex quaternary Ti-34Nb-7Zr-7Ta (all wt%), an orthopedic load-bearing implant alloy, has been investigated in detail in both as-deposited...Read More
Parent artery occlusion with Onyx for distal aneurysms of posterior inferior cerebellar artery: A single-centre experience in a series of 15 patients.
Background: Aneurysms located at distal posterior inferior cerebellar artery (PICA) are rare. These aneurysms are difficult for surgical or endovascular treatment, especially for ruptured aneurysms. A...Read More
In this paper the authors report the case of a complex dural arteriovenous fistula (dAVF) with high-risk features in a 14-year-old girl with Bannayan-Riley-Ruvalcaba syndrome (BRRS), a phosphatase and...Read More
Submicron optical waveguides and microring resonators fabricated by selective oxidation of tantalum.
Submicron tantalum pentoxide ridge and channel optical waveguides and microring resonators are demonstrated on silicon substrates by selective oxidation of the refractory metal, tantalum. The novel me...Read More
Bioactivity of porous titanium with hydrogen peroxide solution with or without tantalum chloride treatment at a low temperature.
In this study, porous titanium was treated by a hydrogen peroxide solution with (HT) or without (HO) tantalum chloride at a low temperature to endow its bioactivity. The microstructure, film stability...Read More
Porous tantalum, a new low modulus metal with a characteristic appearance similar to cancellous bone, is currently available for use in several orthopedic applications (hip and knee arthroplasty, spin...Read More
Trace element reference values in tissues from inhabitants of the European community I. A study of 46 elements in urine, blood and serum of Italian subjects
Neutron activation analysis-electrothermal atomic absorption spectroscopy (ETA-AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) have been used for the determination of 46 ele...Read More