Anion-Modulated Platinum for High-Performance Multifunctional Electrocatalysis toward HER, HOR, and ORR.

Efficient electrocatalyst toward hydrogen evolution/oxidation reactions (HER/HOR) and oxygen reduction reaction (ORR) is desirable for water splitting, fuel cells, etc. Herein, we report an advanced platinum phosphide (PtP) material with only 3.5 wt % Pt loading embedded in phosphorus and nitrogen dual-doped carbon (PNC) layer (PtP@PNC).

Engineering of Hollow Porous Mo C@C Nanoballs Derived From Giant Mo-Polydopamine Clusters as Highly Efficient Electrocatalysts for Hydrogen Evolution.

Low-cost and highly effective catalysts are crucial to the electrocatalytic hydrogen evolution reaction (HER). Among non-noble catalysts, molybdenum carbides are promising candidates because of their high reserves, stability, low cost, and structural diversity. In this work, we report a simple method to fabricate a hollow porous MoC@C nanoball through a hydrothermal preparation process of molybdenum precursors at high temperatures.

Single-Atom Catalysts for Electrochemical Hydrogen Evolution Reaction: Recent Advances and Future Perspectives.

Hydrogen, a renewable and outstanding energy carrier with zero carbon dioxide emission, is regarded as the best alternative to fossil fuels. The most preferred route to large-scale production of hydrogen is by water electrolysis from the intermittent sources (e.g.

Stabilizing Pt Nanocrystals Encapsulated in N-Doped Carbon as Double-Active Sites for Catalyzing Oxygen Reduction Reaction.

Polypropylene fiber, a cheap source of nitrogen-doped carbon, is introduced to design robust nitrogen-doped carbon-encapsulated small Pt nanocrystals with Pt and nitrogen-carbon double-active centers toward oxygen reduction reaction (ORR). Ascribed to the separation effect of the polypropylene fiber, even suffering from a high-temperature carbonization treatment at 720 °C for 90 min, the polypropylene fiber-derived carbon-encapsulated Pt nanocrystal maintains a small particle size (3 nm diameter on average). As expected, its ORR mass activity is up to 116.

[Surgical treatment of ingrown toenail and paronychia with lateral toe incision].

Objective: To investigate and compare the advantages of surgical treatment of ingrown toenail with the traditional Winograd method.

Methods: From Aug.2013 to Jun.

[Amplification of γδ T cells in PBMCs of healthy donors and osteosarcoma patients stimulated by zoledronate].

Aim: To investigate the amplification and cytotoxicity of γδ T cells in peripheral blood mononuclear cells (PBMCs) of healthy donors and osteosarcoma patients stimulated by zoledronate (Zol) and IL-2.

Methods: PBMCs from healthy donors and osteosarcoma patients were stimulated with IL-2 and Zol+IL-2, respectively. After 14-day culture, the purity of γδ T cells was assessed by flow cytometry.

Artesunate inhibits growth and induces apoptosis in human osteosarcoma HOS cell line in vitro and in vivo.

This paper aims to investigate the effects of artesunate (ART) on growth and apoptosis in human osteosarcoma HOS cell line in vitro and in vivo and to explore the possible underlying mechanisms. Cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The induction of apoptosis was detected by light and transmission electron microscopy and flow cytometry.

IFN-γ enhances HOS and U2OS cell lines susceptibility to γδ T cell-mediated killing through the Fas/Fas ligand pathway.

Osteosarcoma is the second highest cause of cancer-related death in children and adolescents, partly due to dysfunction of the Fas/FasL signaling pathway, which leads to develop fatal metastasis. Since presenting no or low levels of Fas expression, resisting Fas ligand-induced apoptosis, and lack of FasL in the host environment, osteosarcoma cells always promote metastases growth and proliferate in the lungs. Therefore, agents, which up-regulate tumor cell surface Fas expression and function, in combination with immune cells, may be effective in treating osteosarcoma, especially lung metastases.