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Browsing by Author Ibrahim, A.M.

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  • Copper(II) oxide nanocatalyst preparation and characterization: green chemistry route

    • Authors: Ibrahim, A.M.;  Advisor: -;  Participants: Munshi, G.H.; Al-Harbi, L.M. (2018)

  • Copper(II) oxide nanoparticles were prepared with the assist of aqueous spinach extract from copper metal powder. Spinach extract catalyzes the formation of copper oxide nanoparticles with manipulation of chlorophyll that exists in the extract. The produced copper(II) oxide nanoparticles were characterized using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD).
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  • Influence of different stabilizers on the morphology of gold nanoparticles

    • Authors: Ibrahim, A.M.;  Advisor: -;  Participants: Alzahrani, H.A.A.; El-Latif, M.M.A.; Selim, M.M. (2019)

  • In the case of using polyethyleneimine, the produced nanoparticles showed a homogenous spherical structure. Meanwhile, in the case of using polyvinylpyrrolidone and chitosan, the produced nanoparticles experience non-homogenous morphology with great diversity. Transmission electron microscopy (TEM) and UV-visible spectrophotometry (UV-vis) techniques were employed to study the criteria of the obtained gold nanoparticles. It was obviously concluded that the type and concentration of the reducing agents that were added during gold preparation and acted as stabilizer templates affect to a great extent the morphology and particle shape. Also, stabilizers affect the homogeneity of the prod...
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  • Trematode cercarial fauna obtained from the field-collected freshwater snails Lymnaea natalensis in Egypt

    • Authors: Ibrahim, A.M.;  Advisor: -;  Participants: Ahmed, A.K. (2019)

  • From total examined snails, it was found that the infected snails included five types of the cercarial stages beside Fasciola cercariae and three types of metacercariae. These cercariae were xiphidio cercariae, gymnocephalus, echinostome cercariae, virgulate cercariae, Echinochasmus pelecani, and Palaeorchis cercariae. The infection rate in snails collected from ElZeidia was the higher infection rate (84%) than others from Oseem (76%) and ElMansuria (62%).