Development, characterization and antimicrobial activity and wound healing nanocomposite membranes xanthan: silver using porcine model Klebson Silva Santos, Malone Santos Pinheiro, Andriele Mendonça Barbosa, Eleci Adriano Hendges, Clauberto Rodrigues de Oliveira, Paula Santos Nunes, Madson Rodrigo Silva Bezerra, Adriely Maria Oliveira Rocha, Peterson Gomes dos Santos, Juliana Cordeiro Cardoso, ...

Article history: Received March 26, 2013 Received in Revised form June 27, 2013 Accepted 28 June 2013 Available online 2 July 2013 A new durable antibacterial cotton fabric was successfully prepared by free-radical graft copolymerization of acrylic acid (AA) and itaconic acid (IA) onto a cotton fabric in an aqueous medium. Ammonium persulfate (APS) was used as the initiator in the presence of a...

polymer nanocomposites containing metals have been used in a wide range of applications due to their versatility, and tunable characteristics including physical, chemical, biological and mechanical properties. in this research work polystyrene-silver nanocomposite has been produced using polymerization of a w/o microemulsion system. styrene monomer was used as the oil or continues phase of the ...

Mesostructured silica-block copolymer thin films are demonstrated to provide orientationally ordered host matrixes for stable alignment of coassembled porphyrin J-aggregates with anisotropic optical properties. Visible light at 490 nm was absorbed anisotropically (A|/A⊥ ) 1.35) by aligned, hexagonally ordered (ethylene oxide)20-(propylene oxide)70-(ethylene oxide)20 (P123) triblock copolymer/si...

Silver nanoparticles/MoS2 nanosheets (AgNPs/MoS2) nanocomposites were prepared by a hierarchical assembly procedure. The functional 0D/2D nanocomposite will be a good candidate in many application fields, such as catalysis, antibacterial activity, energy storage, chemical and biological sensing. The obtained nanocomposites were characterized using X-ray powder diffraction (XRD), transmission el...

background: enzymes are well known as sensitive catalysts in the laboratory and industrial scale. to improve their properties and for using their significant potential in various reactions as a useful catalyst the stability of enzymes can often require improvement. enzymes immobilization on solid supports such as epoxy- functionalized ferric silica nanocomposite can be effective way to improve ...

silver-polyaniline (ag-pani) nanocomposites were prepared by in-situ oxidative polymerization of aniline monomer in sodium bis(2-ethylhexyl) sulfosuccinate (aot) solution as an emulsifier. the synthesis of silver-polyaniline nanocomposites was investigated as a function of several parameters such as aniline concentration, concentration of emulsifier (aot), concentration of oxidation agent and c...

Herein, we report for the first time, synthesis of silver nanoparticles-nitrogen doped graphene oxide-chitosan nanocomposite (SGC) from aqueous leaf extract Curcuma caesia plant and explored bacterial toxicology behavior SGC via agar disc diffusion method. is a medicinal herb utilized as reducing agent reduction silver-to-silver ions. Graphene oxide significant two-dimensional carbon nanomateri...

Here, we report that hybrid multilayered plasmonic nanostars can be universally used as feedback agents for coherent random lasing in polar or nonpolar solutions containing gain material. We show that silver-enhancement of gold nanostars reduces the pumping threshold for coherent random lasing substantially for both a typical dye (R6G) and a typical fluorescent polymer (MEH-PPV). Further, we re...

Fused-silica and silver-coated hollowcore fibers have been used to compress femtosecond optical pulses from a Ti:sapphire laser at 800 nm. Input pulses with energy of 250 μJ and duration of 110 fs were used and compressed pulses with duration of 20 fs and energy of 220 μJ were generated by using the silver-coated fiber. When a similar uncoated fused-silica hollow fiber was used, compressed puls...