The present paper describes the preparation and characterization of Polyvinyl Alcohol-Polypyrrole-Silver Nanocomposite (PVA-PPy-Ag NC) films. The prepared films were conducting, freestanding, flexible, and robust. Silver nanoparticles (Ag NPs) were synthesized from an aqueous solution of silver nitrate using trisodium citrate as a reductant. The casting solution for the films was prepared by in...

Brakke, M. K., Skopp, R. N., and Lane, L. C. 1990. Degradation of wheat streak mosaic virus capsid protein during leaf senescence. Phytopathology 80:1401-1405. Wheat streak mosaicvirwscapsid protein degraded in vivo by proteolysis rnented slightly more slowly than those with 45 kDa protein. Antiserum as leaves senesced. The capsid protein of virus purified from young systemto intact virions, co...

Objective(s): This paper describes coating of magnetite nanoparticles (MNPs) with amorphous silica shells.   Materials and Methods: First, magnetite (Fe3O4) NPs were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility. Afterwards, coating with silica was carried out via a sol-gel approach in which the electrostati...

The active substrates in surface enhanced Raman scattering (SERS) spectroscopy were prepared through self-assembly of nanoparticles on functionalized glasses. Colloidal silver nanoparticles (Ag NPs) were prepared chemically in two different sizes by reduction of AgNO3 using trisodium citrate and sodium borohydride. Gold–silver core–shell nanoparticles were also prepared to compare between the o...

CONTEXT Caroli's disease is a rare congenital disorder first described by Caroli in 1958. This abnormality consists of non-obstructive, saccular or fusiform dilation of the intrahepatic bile ducts resulting in cystic lesions; similar abnormalities may also occur in the kidneys and pancreas. CASE REPORT We illustrate the role of enhanced mangafodipir trisodium magnetic resonance imaging in a p...

The most side effects associated with hormonal contraceptive use is predisposition to higher risk of thromboembolic phenomena. Progestins have antiplasmin and antithrombin activity. Its increase platelet count aggregability, thus predisposing hypercoagulability. A descriptive cross-sectional study was conducted in Shendi - Sudan during the period from April August 2018 evaluate effect pills on ...