Silver/Polyethylene oxide nanocomposite: UV-fabrication, characterization, and antibacterial activity.

In this article, silver-polyethylene oxide (Ag/PEO) biocompatible nanocomposite (BCNC) were successfully green synthesized by mixture containing low MW PEO, silver nitrate and by UV-irradiation at room temperature. The initially broad and asymmetric surface plasmon resonance (SPR) band was narrowed and blue-shifted as the exposure time to UV light was increased. Samples illuminated up to 3 h have an average particle size near 12.

Organic-inorganic nanocomposites of methylcellulose as a precursor of nanocrystalline ZnO layers.

In this article, we present a sol-gel method to synthesize hybrid nanocomposite films of Zinc oxide (ZnO)/methylcellulose (MC) on microscope glass slides. The zinc/MC solutions were prepared, using different weight ratios of zinc acetate dihydrate to MC, in the presence of acetic acid. Fourier transform infrared spectroscopy (FTIR) investigation of the Zn sol/MC mixture showed coordinating interaction between zinc ions and MC.

HA/nylon 6,6 porous scaffolds fabricated by salt-leaching/solvent casting technique: effect of nano-sized filler content on scaffold properties.

Nanohydroxyapatite (n-HA)/nylon 6,6 composite scaffolds were produced by means of the salt-leaching/solvent casting technique. NaCl with a distinct range size was used with the aim of optimizing the pore network. Composite powders with different n-HA contents (40%, 60%) for scaffold fabrication were synthesized and tested.

Influence of calcinated and non calcinated nanobioglass particles on hardness and bioactivity of sol-gel-derived TiO2-SiO2 nano composite coatings on stainless steel substrates.

Thick films of calcinated and non calcinated nanobioglass (NBG)-titania composite coatings were prepared on stainless steel substrates by alkoxide sol-gel process. Dip-coating method was used for the films preparation. The morphology, structure and composition of the nano composite films were evaluated using environmental scanning electron microscope, X-ray diffraction and Fourier transform infrared spectroscope.

Comparison of physicochemical properties of three nanostructure composite TiO2 films and their photocatalytic properties.

Three type of photocatalytic composite films, MPC500SGF-MC, ANPSGF-MC and P25SGF-MC, have been synthesized by a modified sol-gel method using different particle size of TiO2 nanopowder MPC500, ANP and P25, respectively. Methyl cellulose (MC) was added as a template to the sol for stress reduction which improved not only the amount of crystalline material immobilized on the support, but also the nanosize of the films calcined at 500 degrees C. The physicochemical properties, including surface morphology, crystallinity, crystal size and adhesion on glass substrate, of the three types of films were investigated by SEM, XRD and the scratch test.