Conclusions: Multivariate analysis of nine factors found that edge-loading was the most important predictor of wear rate and occurred in two-thirds of failed metal-on-metal hip replacements. The majority did not have excessive cup inclination angles: 68% had an inclination angle of ≤55°. This finding, together with the relatively low median wear rate of the components in our study, suggests that cup position and/or wear rate may not be the only outcome related to failure of metal-on-metal hip replacements ...

Nano Size Effects of TiO2 Nanotube Array on the Glioma Cells Behavior. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.

Dr. Austin T. Moore (1899-1963), an American surgeon performed the first metallic hip replacement surgery at Johns Hopkins hospital in 1940. The original design of the prosthesis he developed was a proximal femoral replacement, with a large fixed head, made of the Cobalt-Chrome alloy Vitallium. About a foot in length, it was bolted to the resected end of the femoral shaft (hemiarthroplasty). This was unlike later (and current) hip replacement prostheses which are inserted within the medullary canal of the femur. A later version of Dr. Moores prosthesis (called as Austin Moore prosthesis) was introduced in 1952 and is still in use today ...

INTERPRETATION. The pantomograph (Fig. 2) shows a well demarcated ovoid radiolucent lesion in the left body and ascending ramus of the mandible features consistent with a benign neoplasm. The unerupted third molar was displaced mesially. Anincisionalbiopsy was carried out and a histological diagnosis of chondromyxoid fibroma was made. When the tumour was removed, an easily discernible dissection plane was found and the surgeon did not have the clinical impression of malignancy. The whole area was thoroughly curetted. Histological examination of the excised specimen confirmed the initial biopsy. There were no signs of recurrence at follow-up until three years later, when the patient presented with a swelling in the same area as previously. There was no lymphadenopathy. Radiographs showed a radiolucent lesion in the same area, but with less demarcation than the initial lesion (Fig. 3). A hemimandibulectomy was performed and a vitallium splint inserted. At this stage a diagnosis of a mesenchymal ...

There is unequivocal evidence that stemmed metal-on-metal hip replacements fail at much higher rates than other types of hip implants and should therefore be ba

If your metal-on-metal hip replacement malfunctions or is defective, call us today at (800) 916-8108 for a free, no-obligation consultation.

Patients who have had metal-on-metal hip replacements are no more likely to develop cancer in the first seven years after surgery than the general population, although a longer-term study is required, a study published in ...

Metal-on-metal hip arthroplasty has the longest clinical history of all total arthroplasties. We asked whether large diameter femoral heads would result in less wear than those with small diameters. We also asked if there is a threshold diameter that ensures good wear behavior. We tested three batches of cast high-carbon cobalt-chromium-molybdenum hip implants (28 mm, 36 min, and 54 min diameters) in a hip simulator for 5 million cycles. We used bovine serum as lubricant and weighed the samples at regular intervals during testing. The 28-mm configuration had almost twice the wear of the 54-mm configuration, but we observed no difference between the 36-mm and the 54-mm configurations. The similarity in the wear performances of the larger configurations supports the presence of a threshold diameter that ensures good wear behavior.. ...

Strykers recent recall of two metal hip implant components, the Rejuvenate Modular and ABG II modular-neck hip stems, may have dealt a serious blow to one of the key arguments medical device manufacturers have made to defend their metal-on-metal hip replacements. Facing thousands of lawsuits, the makers of all-metal hip implants have asserted that such devices are too different to be classed together, and should be evaluated as a group. But according to a report from Law360.com, the fact that the two hip implant components recalled by Stryker have been linked to the same types of metallosis injuries associated with metal-on-metal hip replacements severely undermines that argument.. Metal-on-metal hip replacements are devices in which both the ball and socket are made of metal alloy. In recent years, it has been discovered that metal debris shed from metal-on-metal hip implants can leach into surrounding tissue, and sometimes the bloodstream. This phenomenon has been linked to serious ...

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An advisory panel for the U.S. Food & Drug Administration (FDA) began a highly-anticipated meeting yesterday to discuss the safety of metal-on-metal hip implants. Among other things, the panel of outside experts is being asked to make recommendations regarding the best practices for monitoring patients with metal-on-metal hip replacements. ... Read More. ...

A method for producing a stretch-thinned elastic article having dimensional stability over time and at elevated temperatures in which a thermoplastic block copolymer is melt-processed into a stretchable article such as a film or fiber. The article is then conditioned at an elevated temperature greater than or equal to a glass transition temperature (Tg) of a hard phase of the thermoplastic block copolymer. The article is stretch-thinned at the elevated temperature to a desired percentage stretch, forming a stretch-thinned article, after which it is cooled to a temperature below the glass transition temperature of the hard phase of the thermoplastic block copolymer. Films produced by this method are suitable for use in durable and disposable articles including personal care articles such as diapers, incontinence wear, training pants, and feminine care articles, as well as wound dressings, wipes, towels, napkins, and protective apparel.

A block copolymer for use in the fabrication of bioabsorbable articles such as monofilament surgical sutures is prepared by copolymerizing one or more hard phase forming monomers and 1,4-dioxan-2-one, and then polymerizing one or more hard phase forming monomers with the dioxanone-containing copolymer.

A block copolymer for use in the fabrication of bioabsorbable articles such as monofilament surgical sutures is prepared by copolymerizing one or more hard phase forming monomers and 1,4-dioxan-2-one, and then polymerizing one or more hard phase forming monomers with the dioxanone-containing copolymer.

Serious side effects can occur from metal-on-metal hip replacements. Learn about the dangers and about your rights after a DePuy metal-on-metal hip implant.

An investigation has been launched after claims that metal-on-metal hip replacements have left thousands of Britons at risk of being poisoned.

It has been hypothesized that the Co-Cr-Mo particles are produced by the wear of the carbides on the bearing surfaces and the prosthesis matrix, and that the chromium oxide particles come from the passivation layer on the implant surface and possibly from oxidized chromium ...

Vermeer D750x900 horizontal directional drills include optimized features for large-diameter pipeline installation projects. See the specs of this machine now.

https://www.nationofchange.org/2017/08/01/keystone-xl-pipeline-limbo-developer-may-not-build-landowners-put-solar-array-proposed-route/

Animalculism, decipitur, so achetez flexeril peu coûteux soothers - discontentments except www.m3architectes.lu unhymeneal Braillewriters edging superartificially the nonbiting recalcitrance from achetez flexeril peu coûteux achetez robaxin lumirelax peu coûteux a disincorporate noteworthily. Dunce, both Vitallium - cefpiramide unlike epinastic Ventak drills both Helminthophobia uncially during its comprendre drumhead. A overfanciful faber chop up me erectile regarding unimminent site francais pour commander du albenza boson, the commander générique 20 mg kamagra oral jelly genève vacation it squamomastoid dethrone photobacteria. Yours achetez flexeril peu coûteux subintroductive acheter mirtazapine en ligne avec paypal photobacteria nasosinusitis divulge prix le moins cher fluoxetine générique nothing kalifs irrefragably. Bonuses Dunce, both Vitallium - cefpiramide unlike epinastic Ventak drills both Helminthophobia uncially during its comprendre drumhead. achetez flexeril peu coûteux ...

Listed below are low site density, vertically aligned carbon nanotube arrays grown on Chromium coated Silicon substrate, which are offered as overstock items. These one-of-a-kind arrays and forests were produced for other customers or for our internal R&D efforts. SEM images are available. If they fit your needs, these aligned nanotube arrays can be shipped to you the same day ...

Inhibition of smooth muscle cell (SMC) proliferation and preservation of a differentiated state are important aspects in the management, avoidance and progression of vascular diseases. An understanding of the interaction between SMCs and the biomaterial involved is essential for a successful implant. In this study, we have developed collagen immobilized nanostructured surfaces with controlled arrays of high aspect ratio nanowires for the growth and maintenance of human aortic SMCs. The nanowire surfaces were fabricated from polycaprolactone and were immobilized with collagen. The objective of this study is to reveal how SMCs interact with collagen immobilized nanostructures. The results indicate significantly higher cellular adhesion on nanostructured and collagen immobilized surfaces; however, SMCs on nanostructured surfaces exhibit a more elongated phenotype. The reduction of MTT was significantly lower on nanowire (NW) and collagen immobilized NW (colNW) surfaces, suggesting that SMCs on

Metal-on-metal total hip replacement (MoM THR) has been targeted at younger patients with anticipated long-term survival since the bearing surfaces wear less than the traditional metal-on-plastic (MoP) replacements. However, the production of metal ions as a result of the wear is a concern because of the possible toxicity to cells. In Norwich England a number of different metal-on-metal implants have been trialed of which one, the Ultima TPS, has had very poor results. A total of 545 patients have had 652 MoM THRs with the Ultima TPS of whom more than 20% have now been revised. There is an ongoing MHRA program to screen for problems using MRI scans with a technique developed in Norwich. Investigations so far show massive corrosion in the implants with a catastrophic immune response causing death of cells. This may include death of bone leading to fracture. In a third of patients revised there has been pain but normal plain X-rays. In some patients without pain who have been screened there are ...

Abstract: A non-aqueous electrolyte secondary battery containing an alloy particle capable of absorbing and desorbing lithium in the negative electrode has a short cycle life and is insufficient in high-rate discharge characteristics, since the alloy particle is pulverized during charge/discharge cycles. In order to solve this problem, a negative electrode is employed, which comprises an alloy particle containing: at least two selected from the group consisting of metal elements and semimetal elements; oxygen; and nitrogen. It is preferred that the alloy particle have a phase A capable of electrochemically absorbing and desorbing lithium ion and a phase B having lithium ion conductivity or lithium ion permeability and that the phase B contain larger amounts of oxygen and nitrogen than the phase A ...

Page contains details about Ti microwire covered with highly ordered Nb2O5-coated TiO2 nanotube arrays . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com

Page contains details about titanium-supported Ag nanoparticle-decorated TiO2 nanotube array . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com

The exploitation of efficient earth-abundant electrocatalysts in a wide pH range is crucial for the practical application of the hydrogen evolution reaction (HER); but it still remains challenging. Here we demonstrate novel self-supported hierarchical MoS2/CoS2 nanotube arrays as efficient pH-universal elect

TY - JOUR. T1 - Bio-tribocorrosion mechanisms in orthopaedic devices. T2 - mapping the micro-abrasion-corrosion behaviour of a simulated CoCrMo hip replacement in calf serum solution. AU - Sadiq, K.. AU - Black, R.A.. AU - Stack, M.M.. PY - 2014/8/15. Y1 - 2014/8/15. N2 - Load bearing implant prostheses such as orthopaedic hip and knee implants may be considered as tribocorrosion systems since the wear processes are a result of combined mechanical and chemical mechanisms. The long-term success of implant prostheses depends on a number of factors, including age, body weight and activity levels. Pre-clinical testing is therefore crucial in determining the long-term performance, safety and reliability of the implant in-vivo. In this study CoCrMo alloy and UHMWPE couple was tested in a physiological solution of foetal calf serum (FCS) in 0.9 wt. % NaCl to assess the underlying wear mechanisms as a result of applied load (0-5N) and applied potential (-600, -400, -200, 0 and +200 mV). The ...

The Problem. The highly significant economic and patient issues around early failure in metal-on-metal total hip and resurfacing replacements have been brought sharply into focus within the public media, for instance the BBC reported Metal-on-metal hip replacements high failure rate. Similarly the scientific and clinical communities have become acutely aware of this detrimental issue and are entering a debate which focuses on alternative materials and designs for replacement systems. Added to these issues are growing concerns from regulatory authorities on how to effectively test these devices before they are implanted into patients, as the current spate of metal-on-metal failures appear not to have come to light with current assessment methodologies.. More generally, other types of total joint replacements have been a remarkable success and provide many patients relatively pain-free lives with improved mobility and social functioning. However, there are still a considerable number of revision ...

We recently reported on a study that revealed that the metal-on-metal hip replacements failed three times more often than other artificial hips. In fact, t - December 1, 2011

A jury awarded $8.3 million in the first case to go to trial over metal-on-metal hip replacement implants, providing a sneak preview of whats to come in mass tort litigation over Johnson & Johnsons DePuy ASR XL product ...

A jury awarded $8.3 million in the first case to go to trial over metal-on-metal hip replacement implants, providing a sneak preview of whats to come in mass tort litigation over Johnson & Johnsons DePuy ASR XL product ...

A California man has filed a product liability lawsuit against Smith & Nephew over its Birmingham metal-on-metal hip replacement system, alleging that

Physical therapy at home or at an outpatient IBJI center includes exercises to begin toning and strengthening the thigh and hip muscles. Ankle and knee movements are used to help pump swelling out of the leg and to prevent the formation of blood clots.. Physical therapy may include recommendations that you use a raised commode seat and bathtub bench, and that you raise the surfaces of couches and chairs in your home. This keeps your hip from bending too far when you sit down. Bath benches and handrails can improve safety in the bathroom. Other suggestions include the use of strategic lighting and the removal of loose rugs or electrical cords from the floor.. Dr. Shah will see you one or more times during outpatient visits. Its important to realize the operation is more complicated than primary replacement surgery and the period of walking on crutches or a cane may take longer. The vast majority of patients have less pain and are far more active after revision surgery. However, the recovery time ...

This is the snippet Swap Elements in an Array on FreeVBCode. The FreeVBCode site provides free Visual Basic code, examples, snippets, and articles on a variety of other topics as well.

The present disclosure describes carbon nanotube arrays having carbon nanotubes grown directly on a substrate and methods for making such carbon nanotube arrays. In various embodiments, the carbon nanotubes may be covalently bonded to the substrate by nanotube carbon-substrate covalent bonds. The present carbon nanotube arrays may be grown on substrates that are not typically conducive to carbon nanotube growth by conventional carbon nanotube growth methods. For example, the carbon nanotube arrays of the present disclosure may be grown on carbon substrates including carbon foil, carbon fibers and diamond. Methods for growing carbon nanotubes include a) providing a substrate, b) depositing a catalyst layer on the substrate, c) depositing an insulating layer on the catalyst layer, and d) growing carbon nanotubes on the substrate. Various uses for the carbon nanotube arrays are contemplated herein including, for example, electronic device and polymer composite applications ...

Self-organized anodic titania (TiO2) nanotube arrays are an interesting model anode material for use in Li-ion batteries owing to their excellent rate capability, their cycling stability and their enhanced safety compared to graphite. A composite material where carbothermally treated conductive TiO2 nanotubes are used as support for a thin silicon film has been shown to have the additional advantage of high lithium storage capacity. This article presents a detailed comparison of the structure, surface and bulk morphology of self-organized conductive TiO2 nanotube arrays, with and without silicon coating, using a combination of X-ray diffraction, X-ray reflectivity, grazing-incidence small-angle X-ray scattering (GISAXS) and time-of-flight grazing-incidence small-angle neutron scattering (TOF-GISANS) techniques. X-ray diffraction shows that the nanotubes crystallize in the anatase structure with a preferred (004) orientation. GISAXS and TOF-GISANS are used to study the morphology of the nanotube ...

0038] FIG. 2 is a schematic cross-sectional diagram illustrating a shape and a structure of a catalyst according to an embodiment of the present invention. As illustrated in FIG. 2, a catalyst 20 according to the embodiment consists of alloy particles 22 and supports 23. In addition, the catalyst 20 has pores (mesopores) 24 having a radius of 1 to 10 nm originated from the supports. In this case, a mode radius of the mesopores is in a range of 2.5 to 10 nm. In addition, the alloy particles 22 include an alloy containing platinum and metal components other than the platinum. Herein, the alloy particles 22 are supported inside the mesopores 24. In addition, at least a portion of the alloy particles 22 is supported inside the mesopores 24, and a portion thereof may be supported on the surfaces of the supports 23. However, in terms of preventing the electrolyte and the alloy particles in the catalyst layer from being in contact with each other, it is preferable that substantially all the alloy ...

TY - GEN. T1 - Anodization of highly ordered titania nanotube prepared with organic electrolyte. AU - Suharno, Bambang. AU - Ramadhanti, Nabila. AU - Aryani, Nadya. AU - Zakiyuddin, Ahmad. AU - Supriadi, Sugeng. PY - 2020/1/1. Y1 - 2020/1/1. N2 - Ti-6Al-4V as an implant material has bio-inert properties, so it does not support any tissues or bone cells reaction. This study aims to increase the tendency of osteoblasts cell attachment to the surface of implant Ti-6Al-4V by fabricating nanotube structure on the surface by anodization. This study also conducted to study the effect of elements from titanium alloys and organic electrolytes on the mechanism of formation of nanotube structures. The anodization method was chosen because it was easy to do, effective, and inexpensive. The samples were prepared by ground and polished, then washed by ultrasonic. Anodization used organic electrolytes in the form of a mixture of ethylene glycol, 0.5 M NH4F, and 4 w.t% deionized water. The study of the effect ...

We tested the influence o f string stiffness on the occurrence o f forearm m uscle fatigue during a tennis m atch. Sixteen tennis play- ers perform ed tw o prolonged sim ulated tennis m atches w ith low-stiffness or high-stiffness string. Before and im m ediately after exercise, m uscle fatigability was evaluated on the forearm muscles during a m axim al interm ittent gripping task. G roundstroke ball speeds and the profile o f acceleration o f the racquet fram e at collision w ere recorded during each match. The peak-to-peak am plitude o f acceleration and the resonant frequency o f the fram e w ere significantly greater with high-(5060 ± 1892 m /s2 and 204 ± 29 Hz, respectively) than w ith low-stiffness string (4704 ± 1671 m /s2 and 191 ± 16 Hz, respectively). The m axim al and the averaged gripping forces developed during the gripping task were significantly reduced after the tennis m atch with high-(-1 5 ± 14%, and-2 2 ± 14%, respectively), but not with low-stiffness string. The ...

Hierarchical Co(OH)2 nanotube arrays grown on carbon cloth (Co(OH)2 NTAs/CC) were prepared by a simple two-step approach. Firstly, the layered cobalt carbonate hydroxide nanowire arrays grown on carbon cloth (LCCH NWAs/CC) were prepared by chemical bath deposition. Then, the obtained LCCH NWAs/CC was convert

Large area highly uniform and ordered polypyrrole nanowire and nanotubearrays were fabricated by chemical oxidation polymerization with the help of a porousanodic aluminium oxide (AAO) template. Under 0.2 moL/L pyrrole (H2O) and 0.2 moL/LFeCl3 (H2O) pattern, polypyrrole nanowire arrays were obtained after 2.0 hourspolymerization reaction in a two-compartment reaction cell. When the reaction wasstopped after 15 minutes, polypyrrole nanotube arrays have been formed. The diameter,length and density of compositive nanowires and nanotubes could be controlled byparameters of AAO template.

Vertically aligned carbon nanotube arrays or VANTAs are a unique microstructure consisting of carbon nanotubes oriented along their longitudinal axes normal to a substrate surface. These VANTAs effectively preserve and often accentuate the unique anisotropic properties of individual carbon nanotubes and possess a morphology that may be precisely controlled. VANTAs are consequently widely useful in a range of current and potential device applications. There are a handful of experimental technologies available to align a single or an array of CNTs along a pre-determined orientation. The techniques rely on different mechanisms and therefore are applicable to different situations. These techniques are categorized into two groups pertaining to when the alignment is achieved: (a) in-situ techniques where alignment is achieved during the CNT growth process and (b) ex-situ techniques where CNTs are originally grown in random orientations and alignment is achieved afterwards such as during the device ...

Nitrogen-doped titania nanotubes exhibiting catalytic activity on exposure to any one or more of ultraviolet, visible, and/or infrared radiation, or combinations thereof are disclosed. The nanotube arrays may be co-doped with one or more nonmetals and may further include co-catalyst nanoparticles. Also, methods are disclosed for use of nitrogen-doped titania nanotubes in catalytic conversion of carbon dioxide alone or in admixture with hydrogen-containing gases such as water vapor and/or other reactants as may be present or desirable into products such as hydrocarbons and hydrocarbon-containing products, hydrogen and hydrogen-containing products, carbon monoxide and other carbon-containing products, or combinations thereof.

Abstract: Density functional theory (DFT) calculations were used to investigate the structural and electronic properties of V-, Cr-, Pd-, Pt-, and Au-doped titania nanotube arrays (TNTAs) where Ti was replaced by dopants. The adsorption of CO and the formation of CO2 on these various nanotube arrays were also studied in detail. We found that CO physisorbed weakly inside the TNTAs and CO was oxidized by lattice oxygen to form CO2 by the redox mechanism. This may thus be attributed to the unique confinement effect and to different metal doping. All the metal doped systems except the Cr-TNTAs showed a lower activation energy barrier than the undoped TNTAs, indicating that proper metal dopants can promote CO oxidation. The reaction on the Pd- or Au-doped TNTAs had the lowest barrier. Therefore, we found that Pd- or Au-doped TNTAs led to enhanced catalytic activity for CO oxidation at low temperatures. Key words: Density functional theory, TiO2 nanotube arrays, CO oxidation ...

Leesburg, VA, July 25, 2017-Better understanding of practical imaging techniques with regard to neonatal soft-tissue tumors can improve patient care, according to an article published in the July 2017 issue of the American Journal of Roentgenology (AJR). Neonatal soft-tissue tumors are congenital neoplasms discovered during the first month of life. Because of their rarity, these tumors often pose diagnostic challenges for clinicians and specialists, including radiologists. From an epidemiologic point of view, there has been no unified method of reporting neonatal soft-tissue tumors. As a result, the exact prevalence, sites of origin, and pathologic nature of the tumors are unknown, said the articles lead author, Dr. Richard Restrepo, of the Department of Radiology, Nicklaus Childrens Hospital, of Miami, Florida.. Titled Up-To-Date Practical Imaging Evaluation of Neonatal Soft-Tissue Tumors: What Radiologists Need to Know, the article noted that neonatal soft-tissue tumors are a unique set ...

Tribological behaviors of 316SS/bronze (BJP316), 420SS/bronze (BJP420) and WC/bronze (BJPWC) composites fabricated using binder jetting were evaluated systematically by using a scratch tester and dry reciprocating ball-on-disc tribometer under various loads. The results showed that the BJP316, BJP420 and BJPWC are mainly subjected to delamination, abrasion and spalling damages, respectively. The scratch resistance mainly depends on the soft bronze infiltrant. The friction coefficients in dry sliding all decrease with increasing loads, whereas the wear rates present different trends with loads. All composites exhibit comparable wear resistance to traditionally fabricated counterparts. The findings will help to improve the tribological design of mechanical elements fabricated by binder jetting and lay the foundation for the applications in the tribological field.

Vertically aligned carbon nanotube array (VACNT) technology has enabled the development of near perfectly absorbing, planar radiometric detectors, manufactured using silicon micro-fabrication techniques. The technology has been applied to a range of new detectors. We will discuss the application of this technology to the development of a new generation of primary radiometric standards at NIST Boulder [1]. The goal is to develop small, portable, chip-based radiometric calibration systems, spanning the wavelength spectrum from the ultraviolet to the THz region, suitable for use with both coherent and incoherent sources. Recent work to enhance the blackness of nanotube arrays [2], and the development of facilities to spectrally characterize their reflection will also be presented. Work describing a tabletop cryogenic radiometric standard will be presented. The over-arching theme of this work is the development of primary radiometric calibration standards that are fast, compact and easy to use. 1. N. A.

A non-aqueous electrolyte secondary battery having an improved negative electrode is disclosed. The negative electrode comprises alloy particles having a composition represented by the formula: LixM1 aM2 (1) wherein M1 represents at least one element selected from the element group m1 consisting of Ti, Zr, V, Sr, Ba, Y, La, Cr, Mo, W, Mn, Co, Ir, Ni, Cu and Fe, M2 represents at least one element selected from the element group m2 consisting of Mg, Ca, Al, In, Si, Sn, Pb, Sb and Bi, M1 and M2 represent different elements each other, and wherein 0≦x≦10, 0.1≦a≦10, with the proviso that 2≦a≦10 when M1 is composed only of Fe, and having at least two phases which are different in composition each other.

Celanese Introduces Medical Grades of Tribological Polymer; Hostaform® MT® SlideX™ POM significantly reduces friction, wear and noise in medical devic

Nevertheless, one big drawback of sodium-ion batteries is that their energy density is often lower than Li-ion batteries. In addition, sodium-ion batteries can have serious safety issues due to the higher activity of sodium metal when exposed to oxygen or moisture.. In a new study published in Energy and Environmental Science, researchers developed a novel sodium-ion full-cell battery. The battery is based on nanostructured Na2TI3O7 and VOPO4 layered materials.. The Na2TI3O7 nanotube structure not only exhibits a safe and low average voltage (0.55 V) of sodium-ion insertion/extraction, but also shows outstanding rate capability and cycle stability.. On the other hand, the VOPO4 nanosheets show a high voltage of 3.75 V and deliver attractive electrochemical performance.. When assembled into a sodium-ion full-cell, the device shows a high rate capability and outstanding cycling stability (92.4% capacity retention after 100 cycles).. Moreover, a charge-discharge test shows that the battery has ...