Origin of Cycle Performance in the AgO/TiO Heterostructure Photocatalyst.

In recent years, many studies on photocatalysis focused on improving efficiency. However, the cycle performance is also an important index for industrialization. Here, an AgO/TiO heterostructure photocatalyst is prepared for continuous photodegradation of methylene blue (MB) under visible light, and the samples after the first and fifth round reactions are recycled to study the microstructure evolution of the photocatalyst.

In Situ Formed Core-Shell LiZnMnO@ZnMnO as Cathode for Li-Ion Batteries.

Elemental doping and surface modification are commonly used strategies for improving the electrochemical performance of LiMnO, such as the rated capacity and cycling stability. In this study, in situ formed core-shell LiZnMnO@ZnMnO cathodes are prepared by tuning the Zn-doping content. Through comprehensive microstructural analyses by the spherical aberration-corrected scanning transmission microscopy (Cs-STEM) technique, we shed light on the correlation between the microstructural configuration and the electrochemical performance of Zn-doped LiMnO.

Atomically Intimate Solid Electrolyte/Electrode Contact Capable of Surviving Long-Term Cycling with Repeated Phase Transitions.

The electrode-electrolyte contact issue within the composite electrode layer is a grand challenge for all-solid-state Li batteries. In order to achieve cycling performances comparable to Li-ion batteries based on liquid electrolyte, the aforementioned solid-solid contact not only needs to be sufficiently thorough but also must tolerate repeated cycling. Simultaneously meeting both requirements is rather challenging.

FIB-Assisted Fabrication of Single Tellurium Nanotube Based High Performance Photodetector.

Nanoscale tellurium (Te) materials are promising for advanced optoelectronics owing to their outstanding photoelectrical properties. In this work, high-performance optoelectronic nanodevice based on a single tellurium nanotube (NT) was prepared by focused ion beam (FIB)-assisted technique. The individual Te NT photodetector demonstrates a high photoresponsivity of 1.

Understanding the Effect of Al Doping on the Electrochemical Performance Improvement of the LiMnO Cathode Material.

It is well known that the electrochemical performance of spinel LiMnO can be improved by Al doping. Herein, combining X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and spherical aberration-corrected scanning transmission electron microscopy (Cs-STEM) with electron-beam (E-beam) irradiation techniques, the influence of Al doping on the structural evolution and stability improvement of the LiMnO cathode material is revealed. It is revealed that an appropriate concentration of Al ions could dope into the spinel structure to form a more stable LiAlMnO phase framework, which can effectively stabilize the surface and bulk structure by inhibiting the dissolution of Mn ions during cycling.

Atomic Insights into Ti Doping on the Stability Enhancement of Truncated Octahedron LiMnO Nanoparticles.

Ti-doped truncated octahedron LiTiMnO nanocomposites were synthesized through a facile hydrothermal treatment and calcination process. By using spherical aberration-corrected scanning transmission electron microscopy (Cs-STEM), the effects of Ti-doping on the structure evolution and stability enhancement of LiMnO are revealed. It is found that truncated octahedrons are easily formed in Ti doping LiMnO material.

2D heterogeneous vanadium compound interfacial modulation enhanced synergistic catalytic hydrogen evolution for full pH range seawater splitting.

A novel electrocatalytic material VS2@V2C was proposed for the first time and successfully prepared by a one-step hydrothermal method. T-VS2 nanosheets were uniformly and vertically embedded on the V2C (MXene) matrix with a fewer layer structure. Owing to the fast charge transfer process at the interface of the two-phase structure and good conductivity, the composite material showed a lower hydrogen evolution overpotential and a very low Tafel slope in highly alkaline and highly acidic electrolytes (164 mV and 47.

Nonstoichiometric wollastonite bioceramic scaffolds with core-shell pore struts and adjustable mechanical and biodegradable properties.

Controllable mechanical strength and biodegradation of bioceramic scaffolds is a great challenge to treat the load-bearing bone defects. Herein a new strategy has been developed to fabricate porous bioceramic scaffolds with adjustable component distributions based on varying the core-shell-structured nozzles in three-dimensional (3D) direct ink writing platform. The porous bioceramic scaffolds composed of different nonstoichiometic calcium silicate (nCSi) with 0%, 4% or 10% of magnesium-substituting-calcium ratio (CSi, CSi-Mg4, CSi-Mg10) was fabricated.

[Role of WAVE1 in K562 leukemia cells invasion and its mechanism].

Objective: To investigate role of WASP family verprolin homologous protein 1 (WAVE1) in K562 leukemia cell invasion and its mechanism.

Methods: Immunofluorescence method was used to detect the distribution of WAVE1 and MMP-2 in the cells. K562 cells were transfected with pcDNA3.

[Expression of WAVE1 and p22phox in children with acute lymphocytic leukemia and the relationship of WAVE1 with oxidative stress].

Objective: To study the expression of WAVE1 and p22phox in peripheral blood mononuclear cells (PBMCs) in children with acute lymphocytic leukemia (ALL) and the relationship of WAVE1 with oxidative stress.

Methods: Real-time PCR was used for detecting WAVE1 and p22phox expression in PBMCs in 41 children with ALL and 10 normal controls. Plasma activity of superoxide dismutase (SOD) was measured by the xanthine oxidase method.

[Enhancive effect of HMGB1 gene silence on adriamycin-induced apoptosis in K562/A02 drug resistance leukemia cells].

Objective: To investigate the effect of high mobility group boxl (HMGBI) gene silence on adriamycin (ADM)-induced apoptosis in K562/A02 drug resistance leukemia cells.

Methods: K562/ A02 cells were transient transfected with HMGB1- small interference RNA(siRNA) vector, and the levels of HMGB1 gene differential expression pre-and post-transfection were measured by RT-PCR and Western blotting. 50% inhibition concentration (IC50) of ADM on K562/A02 was determined by WST-8 assay.

[Efficacy and prognosis analysis in 188 children with acute lymphoblastic leukemia of China].

Objective: To analyze the therapeutic effect and the influencing factors of event-free survival (EFS) of childhood acute lymphoblastic leukemia (ALL) in Xiangya Hospital of Central South University and the First Affiliated Hospital of Guangxi Medical University.

Methods: All the patients adopted chemotherapy according to therapeutic guideline revised by the Subspecialty Group of Hematology, The Society of Pediatrics, Chinese Medical Association for the second-time in 1998 (the Rongcheng ALL-98 Protocol). Kaplan-Meier method was used to estimate the survival rates of 188 patients who received therapy with good compliance.

[Expression of WAVE1 in childhood acute lymphocytic leukemia and in the apoptosis of Jurkat cells induced by adriamycin].

Objective: To investigate whether WASP/Verprolin homologous protein 1 (WAVE1) plays a role in the pathogenesis of childhood acute lymphoblastic leukemia (ALL).

Methods: WAVE1 mRNA and protein expression in bone marrow mononuclear cells (BMMCs) was measured by RT-PCR and Western blotting respectively in 4 children with ALL relapse, 15 children with ALL in complete remission (CR) and 40 children with newly diagnosed ALL. Ten normal bone marrow samples were used as controls.

[Role of high mobility group box 1 in adriamycin-induced apoptosis in leukemia K562 cells].

Background & Objective: High mobility group box l (HMGB1), a nuclear DNA-binding protein, stabilizes the structure and function of chromatin, regulates gene transcription. Recent studies found that HMGB1 is associated with the proliferation and metastasis of many tumors, including breast cancer, colon carcinoma, and melanoma, and is rich in various solid cancer tissues and immature cells. This study was to explore the role of HMGB1 in adriamycin (ADM)-induced apoptosis in leukemia K562 cells.

[Role of WAVE1 in drug resistance of K562/A02 leukemia cells].

Objective: To investigate if WAVE1 is involved in mult drug-resistance (MDR) of human leukemia cell line K562/A02.

Methods: The level of WAVE1 in K562 and K562/A02 cells was assayed by Western blot and RT-PCR; K562 cells and K562/A02 cells were transient transfected with pEFBOS-WAVE1 reconstructed plasmid or specifically siRNA to WAVE1. 50% inhibition concentration (IC50) of doxorubicin on K562/A02 was determined by WST-8 assay.