We report that hydrogen gas can be easily produced from water at room temperature using a Mg nanopowder (30-1000 nm particles, average diameter 265 nm). The Mg nanopowder was produced by dc arc melting of a Mg ingot in a chamber with mixed-gas atmosphere (20% N2-80% Ar) at 0.1 MPa using custom-built nanopowder production equipment. The Mg nanopowder was passivated with a gas mixture of 1% O2 in...

The ability to mimic the structure of the natural extracellular matrix is a successful key for guided bone regeneration (GBR). For the regeneration of highly organized structures such as heart and bone, aligned fibrous membranes could provide anisotropic mechanical and biological properties which are adequate topographic guidance to cells. Here, novel nanofibrous membranes were developed throug...

Nickel oxide (NiO) nanopowder was obtained during a sonochemical method. Nickel hydroxide precursor, prepared by addition of sodium hydroxide (NaOH) to nickel nitrate Ni(NO3)2 solution and vigorously stirring until the pH becomes 7.2. Ultrasounds waves were applied during precipitation period and after drying in oven nanopowder NiO was achieved. Transient and scanning electron microscopy showed...

In this paper, we use Tunisian clay materials as alternative low-cost adsorbents, well substrates to immobilise TiO2 for the decolouration of methylene blue (MB) dye solutions. The collected raw from mine Tamra was characterised by various techniques, such X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence (XRF). XRD patterns showed halloysite main phase (61%), with a ...

Strontium titanate (SrTiO3) nanopowder has been synthesized through a sol-gelhydrothermal method. The X-ray diffraction studies of SrTiO3 nanopowder have shown that the asprepared powder was single phase, crystalline, and has a cubic perovskite structure (ABO3) with a lattice constant a = 3.903 Å. The particle size calculated from FWHM was ∼22 nm. SrTiO3 nanopowder was examined using thermo gra...

We investigated the effect of very high pressure on sintering temperature, phase transition and grain growth during Spark Plasma Sintering (SPS) a 15 nm TiO2 nanopowder. Using in situ synchrotron X-ray diffraction at 1.5 3.5 GPa, we followed evolution crystalline phases crystallite size as function temperature. In comparison, laboratory, SPS experiments were performed two original facilities: A...

Parkinson's disease (PD) is a neurodegenerative disease with the pathological hallmark of reduced nigrostriatal dopamine. In traditional Chinese medicine (TCM) clinical practice, the nanopowder of Cistanche tubulosa has therapeutic effects on PD. To identify the therapeutic mechanism, this study tested the protective effect of different doses of MPP+-induced toxicity in MES23.5 cells using the ...