An all-vanadium-based lithium-ion full battery with hierarchical yolk-shell structure electrodes.

An all-vanadium-based lithium-ion full battery is successfully assembled with hierarchical micro-nano yolk-shell structures VO and VO as the cathode and anode, which were obtained through a facile solvothermal method with heat treatment under different atmospheres. When used as the cathode of the lithium-ion battery, the hierarchical micro-nano yolk-shell VO demonstrated higher capacities than bulk VO, commercial LiFePO, and LiNiCoMnO cathodes at various current densities. The all-vanadium-based lithium-ion full battery shows good cycle performance at 0.

Phase Modulation Leads to Ultrahigh Energy Storage Performance in AgNbO-Based Ceramics and Multilayer Capacitors.

Antiferroelectric (AFE) ceramics are competitive energy storage candidates for advanced high-power devices. However, the poor recoverable energy density and efficiency are challenging and severely hinder their applications. Here, superior energy storage performance is obtained in Bi-, Sr-, and Ta-codoped AgNbO-based ceramics.

Hydrated Calcium Vanadate Nanoribbons with a Stable Structure and Fast Ion Diffusion as a Cathode for Quasi-Solid-State Zinc-Ion Batteries.

We demonstrated the use of hydrated calcium vanadate (CaVO·3HO, denoted as CaVO-2) as a cathode for aqueous zinc-ion batteries (AZIBs). Nanoribbons of hydrated calcium vanadate facilitated shortening of the Zn transport distance and accelerated zinc-ion insertion. The introduction of interlayer structure water increased the interlayer spacing of calcium vanadate and as a "lubricant".

Composite polymer electrolyte based on poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) for solid-state batteries.

Using solid-state electrolytes (SSEs) with excellent thermal and electrical stability to replace liquid electrolytes, and assembling solid-state lithium-ion batteries (SSLIBs) is considered the best solution to these safety issues. However, it is difficult for a single electrolyte to have the characteristics of high ionic conductivity, low interface resistance, and high stability of the counter electrode at the same time. In this work, the composite polymer electrolyte membrane (CPE) of inorganic LiAlTi(PO) (LATP) and organic poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) polymer was successfully prepared by traditional casting method.

Interfacial Engineering of MoS/VO@C-rGO Composites with Pseudocapacitance-Enhanced Li/Na-Ion Storage Kinetics.

Molybdenum sulfide has been widely investigated as a prospective anode material for Li/Na storage because of its unique layered structure and high theoretical capacity. However, the enormous volume variation and poor conductivity limit the development of molybdenum sulfide. The rational design of a heterogeneous interface is of great importance to improve the structure stability and electrical conductivity of electrode materials.

Piezo-photocatalytic properties of BaTiO/CeO nanoparticles with heterogeneous structure synthesized by a gel-assisted hydrothermal method.

BaTiO/CeO nanoparticles with heterogeneous structure were successfully synthesized a gel-assisted hydrothermal method. The molar ratio of Ti/Ce was set as 1 : 0, 0.925 : 0.

Synergistic Effect of Y Doping and Reduction of TiO on the Improvement of Photocatalytic Performance.

Pure TiO and 3% Y-doped TiO (3% Y-TiO) were prepared by a one-step hydrothermal method. Reduced TiO (TiO-H) and 3% Y-TiO (3% Y-TiO-H) were obtained through the thermal conversion treatment of Ar-H atmosphere at 500 °C for 3 h. By systematically comparing the crystalline phase, structure, morphological features, and photocatalytic properties of 3% Y-TiO-H with pure TiO, 3% Y-TiO, and TiO-H, the synergistic effect of Y doping and reduction of TiO was obtained.

circ_0058063 promotes breast cancer progression by upregulating DLGAP5 via sponging miR-557.

Objective: Accumulating evidence indicates that circular RNAs (circRNAs) contribute to breast cancer (BC) development and progression. However, the role of circ_0058063 in BC and its underlying molecular processes remain unclear.

Methods: The expression of circ_0058063, miR-557, and DLGAP5 in BC tissues and cells was determined using real time quantitative PCR or western blotting.

A Gecko-Inspired Robot with a Flexible Spine Driven by Shape Memory Alloy Springs.

The majority of sprawling-posture quadrupedal vertebrates, such as geckos and lizards, adopt a cyclical lateral swing pattern of their trunk that is coordinated with limb movements to provide extraordinary flexibility and mobility. Inspired by the gecko's locomotory gait and posture, a gecko-like robot with a flexible spine driven by shape memory alloy (SMA) springs was proposed in this work. The static parameters of the SMA spring were experimentally measured, and the flexible spine driven by SMA springs can be deflected bidirectionally.

Low volume expansion hierarchical porous sulfur-doped FeO@C with high-rate capability for superior lithium storage.

Ingenious morphology design and doping engineering have remarkable effects on enhancing conductivity and reducing volume expansion, which need to be improved by transition metal oxides serving as anode materials for lithium-ion batteries. Herein, S-FeO@C nano-spindles with a hierarchical porous structure are obtained by carbonizing MIL-88B@PDA and subsequent high-temperature S-doping. Kinetic analysis showed that S-doping increases capacitive contribution, enhances charge transfer capability and accelerates Li diffusion rate.

MACF1 mutations predict poor prognosis: a novel potential therapeutic target for breast cancer.

Objective: Microtubule actin cross-linking factor 1 (MACF1) mutations are known to play an important role in the progression of various cancers. However, its role in breast cancer remains to be determined. In this study, we investigated how MACF1 mutations may play a role in breast cancer development.

Study on Static Characteristics of Aerostatic Bearing Based on Porous SiC Ceramic Membranes.

The porous aerostatic bearing is a new supporting structure that is widely used in precision and ultraprecision engineering and the aerospace and other fields. The aerostatic bearing has a good bearing capacity and static stiffness. In this work, the numerical and experimental research on the static characteristics of an aerostatic bearing based on a porous SiC ceramic membrane is presented.

Fabrication, Characterization and Drainage Capacity of Single-Channel Porous Alumina Ceramic Membrane Tube.

The single-channel AlO-based porous ceramic membrane tubes (PCMT) were prepared with different grain size of AlO powders by extrusion molding process, combing the traditional solid-phase sintering method. The effects of raw grain size and sintering temperature on the microstructure, phase structure, density, and porosity were investigated. The results revealed that with further increase in sintering temperature, the density of porous ceramics increases, while the porosity decreases, and the pore size decreases slightly.

Enhanced energy storage density of all-organic fluoropolymer composite dielectric introducing crosslinked structure.

Polymer-based dielectrics have been attracted much attention to flexible energy storage devices due to their rapid charge-discharge rate, flexibility, lightness and compactness. Nevertheless, the energy storage performance of these dielectric polymers was limited by the weak dielectric breakdown properties. Crosslinked structure has been proven efficient to enhance breakdown strength ( ) and charge-discharge efficiency () of polymer film capacitors.

Synergic Enhancement of Energy Storage Density and Efficiency in MnO-Doped AgNbO@SiO Ceramics via A/B-Site Substitutions.

Dielectric energy storage devices with high power density show great potential in applications of smart grids, electrical vehicles, pulsed power weapons, and so on. However, their limited recoverable energy density badly restricts their utilization and harms the miniaturization, portability, and integration of electronics. Herein, equivalent amounts of BiO and ScO were introduced to improve the energy storage property of 0.

Controlled Hydrothermal/Solvothermal Synthesis of High-Performance LiFePO for Li-Ion Batteries.

The sluggish Li-ion diffusivity in LiFePO , a famous cathode material, relies heavily on the employment of a broad spectrum of modifications to accelerate the slow kinetics, including size and orientation control, coating with electron-conducting layer, aliovalent ion doping, and defect control. These strategies are generally implemented by employing the hydrothermal/solvothermal synthesis, as reflected by the hundreds of publications on hydrothermal/solvothermal synthesis in recent years. However, LiFePO is far from the level of controllable preparation, due to the lack of the understanding of the relations between the synthesis condition and the nucleation-and-growth of LiFePO .

Rational Design and Porosity of Porous Alumina Ceramic Membrane for Air Bearing.

Air bearing has been widely applied in ultra-precision machine tools, aerospace and other fields. The restrictor of the porous material is the key component in air bearings, but its performance is limited by the machining accuracy. A combination of optimization design and material modification of the porous alumina ceramic membrane is proposed to improve performance within an air bearing.

Preparation of Silicon Hydroxyapatite Nanopowders under Microwave-Assisted Hydrothermal Method.

The synthesis of partially substituted silicon hydroxyapatite (Si-HAp) nanopowders was systematically investigated via the microwave-assisted hydrothermal process. The experiments were conducted at 150 °C for 1 h using TMAS (CHNOSi) as a Si precursor. To improve the Si uptake in the hexagonal structure, the Si precursor was supplied above the stoichiometric molar ratio (0.

Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(MnFe)PO Solid Solution.

Forming olivine-structured Li(Mn,Fe)PO solid solution is theoretically a feasible way to improve the energy density of the solid solutions for lithium ion batteries. However, the Jahn-Teller active Mn in the solid solution restricts their energy density and rate performance. Here, as demonstrated by operando X-ray diffraction, we show that equimolar LiMnFePO solid solution nanocrystals undergo a single-phase transition during the whole (de)lithiation process, with a feature of zero lithium miscibility gap, which endows the nanocrystals with excellent electrochemical properties.

Hydrothermal Synthesis of Various Shape-Controlled Europium Hydroxides.

Eu(OH) with various shape-controlled morphologies and size, such as plate, rod, tube, prism and nanoparticles was successfully synthesized through simple hydrothermal reactions. The products were characterized by XRD (X-Ray Powder Diffraction), FE-SEM (Field Emission- Scanning Electron Microscopy) and TG (Thermogravimetry). The influence of the initial pH value of the starting solution and reaction temperature on the crystalline phase and morphology of the hydrothermal products was investigated.

Double-Layered Multifunctional Composite Electrolytes for High-Voltage Solid-State Lithium-Metal Batteries.

The need for safe storage systems with a high energy density has increased the interest in high-voltage solid-state Li-metal batteries (LMBs). Solid-state electrolytes, as a key material for LMBs, must be stable against both high-voltage cathodes and Li anodes. However, the weak interfacial contact between the electrolytes and electrodes poses challenges in the practical applications of LMBs.

Reduction in milk fat globule-EGF factor 8 inhibits triple-negative breast cancer cell viability and migration.

Milk fat globule-EGF factor 8 (MFG-E8) has been demonstrated to be associated with the progression and metastasis of breast cancer, although the underlying mechanisms remain undefined. The aim of the present study was to explore the role of MFG-E8 in human breast cancer and examine the underlying molecular mechanisms. Reverse transcription-quantitative polymerase chain reaction analysis was used to evaluate the expression levels of MFG-E8 in human breast carcinoma cell lines.

Hierarchical bilayered hybrid nanostructural arrays of NiCoO micro-urchins and nanowires as a free-standing electrode with high loading for high-performance lithium-ion batteries.

Fabrication of free -standing binary transition metal oxides, especially NiCoO, has attracted significant research interests since these metal oxides are promising candidates for free-standing anodes of lithium-ion batteries (LIBs). However, there remain some problems, especially low loading, for the existing NiCoO anodes. To address the abovementioned issue, it will be a quite feasible solution to combine the advantages of both hierarchical micro/nano-structures and free-standing electrodes to fabricate a free-standing hierarchical micro/nano-structural NiCoO electrode.

Ultrathin Nanoribbons of in Situ Carbon-Coated VO·HO for High-Energy and Long-Life Li-Ion Batteries: Synthesis, Electrochemical Performance, and Charge-Discharge Behavior.

The ever-growing demands of Li-ion batteries (LIBs) for high-energy and long-life applications, such as electrical vehicles, have prompted great research interest. Herein, by applying an interesting one-step high-temperature mixing method under hydrothermal conditions, ultrathin VO·HO@C nanoribbons with good crystallinity and robust configuration are in situ synthesized as promising cathode materials of high-energy, high-power, and long-life LIBs. Their capacity is up to 319 mA h/g at a current density of 100 mA/g.

Hierarchical Porous Intercalation-Type V O as High-Performance Anode Materials for Li-Ion Batteries.

As intercalation-type anode materials for Li-ion batteries (LIBs), the commercially used graphite and Li Ti O exhibit good cycling and rate properties, but their theoretical specific capacities are too low to meet the ever-growing demands of high-energy applications such as electric vehicles. Therefore, the development of new intercalation-type anode materials with larger capacity is very desirable. Herein, we design and synthesize novel 3 D hierarchical porous V O @C micro/nanostructures consisting of crumpled nanosheets, through self-reduction under annealing from the structurally similar VO (B)@C precursors without the addition of any other reducing reagent or gas.