High-performance selective NO gas sensor based on InO-graphene-Cu nanocomposites.

The control of atmosphere content and concentration of specific gases are important tasks in many industrial processes, agriculture, environmental and medical applications. Thus there is a high demand to develop new advanced materials with enhanced gas sensing characteristics including high gas selectivity. Herein we report the result of a study on the synthesis, characterization, and investigation of gas sensing properties of InO-graphene-Cu composite nanomaterials for sensing elements of single-electrode semiconductor gas sensors.

Changes in the Neuronal Population of the Spinal Cord of Mice with Experimental Autoimmune Encephalomyelitis as a Model of Multiple Sclerosis.

We performed a quantitative study of the neuronal population in the spinal cord of mice with acute and chronic model of experimental autoimmune encephalomyelitis. Immunohistological/immunofluorescent analysis with motor neuron marker ChAT revealed a significant decrease in the number of motor neurons in the ventral horns of the lumbar spinal cord in the acute form of autoimmune encephalomyelitis, with the further appearance of large empty (containing no motor neurons) areas in the ventral horns in the chronic form. The development of experimental autoimmune encephalomyelitis is accompanied by degradation and death of neurons, in particular ChAT motor neurons.

Metal organic framework/polyelectrolyte composites for water vapor sorption applications.

Metal-organic framework (MOF) core particles of MIL-101(Cr), aluminum fumarate (Basolite® A520), MIL-53-TDC, zirconium fumarate, and UiO-66 were modified by adsorption of thin polyelectrolyte (PE)-based shells without deterioration of their crystal structure. By applying different PEs and depositing a single layer (MOF/PE) or one to three layer-by-layer assembled bilayers (MOF/LbL), the mass percent of shell material in the composite was varied from 0.6-2.

Nickel nanoparticle-decorated reduced graphene oxide/WO nanocomposite - a promising candidate for gas sensing.

We report for the first time the combination of WO sensing elements with a non-noble metal-carbon composite, namely a nickel metal nanoparticle-carbon composite (Ni@rGO). Previous work with WO had used either NiO (as part of the WO lattice), solely carbon, Pd-surface decorated WO (Pd@WO), or Pd or Pt@carbon@WO. We demonstrate the gas response for pure WO, rGO/WO and Ni@rGO/WO sensing elements towards NO and acetone in air as well as towards CO in N.

Laser Irradiation of Gd-Si and Gd-Si-Ge Colloid Mixtures for the Fabrication of Compound Nanoparticles.

Binary (Gd Si , GdSi) and ternary (Gd Si Ge ) compound nanoparticles (NPs) were prepared by laser irradiation of a mixture of colloidal solutions containing NPs of the relevant elements. It is assumed that the compound NPs are formed by heating, co-melting, and chemical interactions in the alloyed droplets. The blackbody-like radiation of the heated NPs was used for temperature control of the NP-preparation process.