Enhanced piezotronics by single-crystalline ferroelectrics for uniformly strengthening the piezo-photocatalysis of electrospun BaTiO@TiO nanofibers.

Turning the built-in electric field by modulating the morphology and microstructure of ferroelectric materials is considered a viable approach to enhancing the piezo-photocatalytic activity of the ferroelectric/oxide semiconductor heterojunctions. Here, hydrothermally synthesized single-crystalline BaTiO nanoparticles are employed to construct BaTiO@TiO hybrid nanofibers by sol-gel assisted electrospinning of TiO nanofibers and annealing. Because of the obvious enhancement of the synergetic piezo-photocatalytic effect under both ultrasonic and ultraviolet (UV) light irradiation, the piezo-photocatalytic degradation rate constant () of BaTiO@TiO hybrid nanofibers on methyl orange (MO) reaches 14.

Enhanced and Robust Directional Propulsion of Light-Activated Janus Micromotors by Magnetic Spinning and the Magnus Effect.

Advances in the versatile design and synthesis of nanomaterials have imparted diverse functionalities to Janus micromotors as autonomous vehicles. However, a significant challenge remains in maneuvering Janus micromotors by following desired trajectories for on-demand motility and intelligent control due to the inherent rotational Brownian motion. Here, we present the enhanced and robust directional propulsion of light-activated FeO@TiO/Pt Janus micromotors by magnetic spinning and the Magnus effect.

Dipole-Moment Induced Phototaxis and Fuel-Free Propulsion of ZnO/Pt Janus Micromotors.

Light-driven micromotors have stimulated considerate interests due to their potentials in biomedicine, environmental remediation, or serving as the model system for non-equilibrium physics of active matter. Simultaneous control over the motion direction and speed of micro/nanomotors is crucial for their functionality but still difficult since Brownian motion always randomizes the orientations. Here, a highly efficient light-driven ZnO/Pt Janus micromotor capable of aligning itself to illumination direction and exhibiting negative phototaxis at high speeds (up to 32 µm s ) without the addition of any chemical fuels is developed.

Highly Ordered SnO Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries.

SnO, a typical transition metal oxide, is a promising conversion-type electrode material with an ultrahigh theoretical specific capacity of 1494 mAh g. Nevertheless, the electrochemical performance of SnO electrode is limited by large volumetric changes (~300%) during the charge/discharge process, leading to rapid capacity decay, poor cyclic performance, and inferior rate capability. In order to overcome these bottlenecks, we develop highly ordered SnO nanopillar array as binder-free anodes for LIBs, which are realized by anodic aluminum oxide-assisted pulsed laser deposition.

Isotropic Hedgehog-Shaped-TiO/Functional-Multiwall-Carbon-Nanotube Micromotors with Phototactic Motility in Fuel-Free Environments.

Directional motion in response to specific signals is critically important for micro/nanomotors in precise cargo transport, obstacle avoidance, collective control, and complex maneuvers. In this work, a kind of isotropic light-driven micromotor that is made of hedgehog-shaped TiO and functional multiwall carbon nanotubes (Hs-TiO@FCNTs) has been developed. The FCNTs are closely entangled with Hs-TiO and form a close-knit matrix on the surface of Hs-TiO, which facilitates the transfer of electrons from Hs-TiO to FCNTs.

Three-dimensional mesoporous γ-FeO@carbon nanofiber network as high performance anode material for lithium- and sodium-ion batteries.

Electrode materials that can function well in both lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) are desirable for electrochemical energy storage applications, especially under high rate. In this work, a three-dimensional (3D) mesoporous γ-FeO@carbon nanofiber (γ-FeO@CNF) mat has been successfully synthesized by sol-gel based electrospinning and carbonization. It delivers a specific capacity of 820 mAh g at 0.

Multifield Control of Domains in a Room-Temperature Multiferroic 0.85BiTiFeMgO-0.15CaTiO Thin Film.

Single-phase materials that combine electric polarization and magnetization are promising for applications in multifunctional sensors, information storage, spintronic devices, etc. Following the idea of a percolating network of magnetic ions (e.g.

High temperature spin-glass-like transition in LaSrMnO nanofibers near the Curie point.

The glassy transition of superparamagnetic (SPM) (r < r) nanoparticle systems usually occurs at a very low temperature that greatly limits its application to high temperatures. In this work, we report a spin-glass-like (SGL) behavior near the Curie point (T), i.e.

Mild hypothermia pretreatment protects hepatocytes against ischemia reperfusion injury via down-regulating miR-122 and IGF-1R/AKT pathway.

Background: Mild hypothermia has been well known as an effective way to reduce ischemia reperfusion injury (IRI), while the mechanisms are still unclear. More and more evidences have indicated that miRNAs should been involved in the regulation of IRI and expecially some miRNAs have shown temp-responsiveness for temperature variation. Therefore, the role of miR-122 in mild hypothermia pretreatment after IRI was investigated.

[Assessment of the social values of ecosystem services based on SolVES model: A case study of Wusong Paotaiwan Wetland Forest Park, Shanghai, China.].

Human demand for various ecosystem services continues to increase. The previous studies focused mainly on using economic methods to assess ecosystem service values, but few studies took social attributes and spatial heterogeneity into consideration. In this paper, we selected Wusong Paotaiwan Wetland Forest Park in Shanghai as the study area, and used Social Values for Ecosystem services (SolVES) model to assess the social values of several ecosystem services, such as aesthetic, biodiversity, cultural, recreation, etc.

High level of proteinuria during treatment with renin-angiotensin inhibitors is a strong predictor of renal outcome in nondiabetic kidney disease.

This study investigated whether proteinuria not only could serve as a marker of renal outcome but also could monitor the renoprotection of renin-angiotensin system (RAS) inhibitor treatment in patients with nondiabetic chronic kidney disease (CKD). Data from the Renoprotection of Optimal Antiproteinuric Doses (ROAD) trial were used to examine the contribution of the antiproteinuric effect of benazepril and losartan on renal outcome (the primary composite end point of doubling of serum creatinine and end-stage renal disease or death) in 339 Chinese nondiabetic CKD patients with overt proteinuria and renal insufficiency. The degree of proteinuria at month 6 of treatment (residual proteinuria) and during follow-up (time-average proteinuria) showed a close relationship with renal end points.

Synthesis, crystal structure and biological activity of aryl [(N,N'-diacyl-N'-tert-butylhydrazino)thio]methylcarbamates.

A series of novel aryl [(N,N'-diacyl-N'-tert-butylhydrazino)thio]methylcarbamates were synthesized by the reaction of aryl (chlorothio)methylcarbamates with N,N'-diacyl-N-tert-butylhydrazines in the presence of sodium hydride. X-Ray single crystal diffraction of 2-isobutylphenyl [(N,N'-dibenzoyl-N'-tert-butylhydrazino)thio]methylcarbamate demonstrated the presence of N-S-N bonding. All of the compounds exhibited excellent larvicidal activities.

Synthesis and insecticidal evaluation of novel N-oxalyl derivatives of tebufenozide.

A series of novel N '-tert-butyl-N '-3,5-dimethylbenzoyl-N-aryloxyoxalyl-N-4-ethylbenzoyl hydrazines containing a carboxylic acid or ester substituent on the aryl were synthesized, and their larvicidal activities were evaluated. The results of bioassays indicated that some of these title compounds exhibit higher larvicidal activities than RH5849 (N-tert-butyl-N,N '-dibenzoylhydrazine), but they are not good compared to the parent compound (tebufenozide). The carboxylic acid substituent on the aryl was essential for high larvicidal activity.