Search Results - "Wassel, Ahmed R."

Investigating the effect of thickness on the structural, morphological, optical and electrical properties of AgBiSe2 thin films by Hameed, Talaat A., Wassel, Ahmed. R., El Radaf, I.M.

“…Herein, a one-step thermal evaporation was used for fabrication of silver bismuth selenide (AgBiSe2) thin films of various thickness. The influence of…”
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Optimization of green biosynthesized visible light active CuO/ZnO nano-photocatalysts for the degradation of organic methylene blue dye by Fouda, Amr, Salem, Salem S., Wassel, Ahmed R., Hamza, Mohammed F., Shaheen, Th.I.

“…Herein, CuO/ZnO nanocomposites at different ratios were successfully synthesized through a green biosynthesis approach. This was performed by harnessing the…”
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Microspheres with 2D rGO/Alginate Matrix for Unusual Prolonged Release of Cefotaxime by Gomaa, Islam, Emam, Merna H, Wassel, Ahmed R, Ashraf, Kholoud, Hussan, Sara, Kalil, Haitham, Bayachou, Mekki, Ibrahim, Medhat A

“…A synergistic interaction between reduced graphene oxide (rGO) and a biodegradable natural polymer, sodium alginate, was developed to create unique…”
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Antimicrobial and Antiviral Activities of Durable Cotton Fabrics Treated with Nanocomposite Based on Zinc Oxide Nanoparticles, Acyclovir, Nanochitosan, and Clove Oil by Shehabeldine, Amr M., Hashem, Amr H., Wassel, Ahmed R., Hasanin, Mohamed

“…In this study, cotton fabrics based on zinc oxide nanoparticles in situ synthesis, acyclovir, nanochitosan, and clove oil were treated. The treated cotton…”
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Synthesis and characterization of the chemically deposited SnS1−x Sex thin films: structural, linear and nonlinear optical properties by Wassel, Ahmed R., El Radaf, I. M.

“…This article reported the synthesis of tin sulfide selenide (SnS 1− x Se x ) thin films with different compositions (0 ≤  x  ≤ 1) using a cost-effective…”
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Production of photochromic nanocomposite film via spray‐coating of rare‐earth strontium aluminate for anti‐counterfeit applications by Mokhtar, Omnia M., Attia, Yasser A., Wassel, Ahmed R., Khattab, Tawfik A.

“…New photochromic film was developed toward the preparation of anti‐counterfeiting documents utilizing inorganic/organic nanocomposite enclosing a…”
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Enhancement of organic/inorganic hybrid photodetector based on pentacene/n-Si by surface plasmonic effect of gold and silver nanoparticles: A comparative study by El-Mahalawy, Ahmed M., Wassel, Ahmed R.

“…•Au/pentacene/n-Si/Al photodetector is successfully fabricated.•LSPR of Ag-NPs and Au-NPs enhanced the performance of photodetector.•Ag and Au enhanced the…”
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Multifunctional 3D cationic starch/nanofibrillated cellulose/silver nanoparticles nanocomposite cryogel: Synthesis, adsorption, and antibacterial characteristics by Radwan, Emad K., El-Naggar, Mehrez E., Abdel-Karim, Ahmed, Wassel, Ahmed R.

“…We report a new 3D nanocomposite cryogel combines the advantages of cationic starch (Cs), nanofibrillated cellulose (NFC) and silver nanoparticles (Ag NPs). Cs…”
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Structural, spectroscopic and electrical investigations of novel organic thin films bearing push-pull azo – Phenol dye for UV photodetection applications by El-Mahalawy, Ahmed M., Abdou, Moaz M., Wassel, Ahmed R.

“…[Display omitted] •2-cetyl-4-(4-chloro-phenylazo) phenol is synthesized by a novel and efficient route.•ACAP thermally evaporated thin films are successfully…”
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Efficacy assessment of metalloporphyrins as functional materials for photodetection applications: role of central tetrapyrrole metal ions by El-Mahalawy, Ahmed M., Nawar, Ahmed M., Wassel, Ahmed R.

“…Despite the continued research, it is still not entirely clear how important characteristics of metalloporphyrins are exploited for optoelectronic…”
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Synthesis, characterization and antimicrobial activity of Schiff bases from chitosan and salicylaldehyde/TiO2 nanocomposite membrane by Montaser, A.S., Wassel, Ahmed.R., Al-Shaye'a, Oqba N.

“…Salicylaldehyde (SA) successfully used as a mono aldehyde crosslinker with chitosan forming hydrogel membrane in presence of TiO2 NPs through casting…”
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Immobilization of horseradish peroxidase on cationic microporous starch: Physico-bio-chemical characterization and removal of phenolic compounds by El-Naggar, Mehrez E., Abdel-Aty, Azza M., Wassel, Ahmed R., Elaraby, Nesma M., Mohamed, Saleh A.

“…In the present study, two different modified starches; microporous starch (MPS) and cationic microporous starch (CMPS) were synthesized. The granules of MPS…”
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Overcoming the poor performance of n-CdS/p-SnS solar cells by plasmonic effect of gold and silver nanoparticles by El-Mahalawy, Ahmed M., Amin, Fatma M., Wassel, Ahmed R., Salam, Mohamed Abd‑El

“…It is known that one of the biggest problems in CdS/SnS solar cells is the efficiency deterioration, which hinders their wider use in application fields…”
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Structural and optical characterizations of the thermally evaporated PbxGa1-xSe thin films by El Radaf, I.M., Wassel, Ahmed. R.

“…This research work aims to study the influence of lead content on the thermally evaporated PbxGa1-xSe films where x = 0, 0.25, 0.50 and 0.75 at %. The X-ray…”
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Enhancement the structural, optical and nonlinear optical properties of cadmium phosphate glasses by nickel ions by AbuShanab, Waheed Sami, Moustafa, Essam B., Hammad, Ahmed H., Ramadan, R. M., Wassel, Ahmed R.

“…Cadmium phosphate glasses containing nickel oxide have successfully prepared through conventional melt quenching technique. The impact of nickel ions on the…”
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Role of substitution of sulfur atoms by oxygen atoms on optical characteristics of lead sulfide semiconductor by Heiba, Zein K., Wassel, Ahmed R., Elshimy, Hassan, Ali, Essam E., Badawi, Ali, Mohamed, Mohamed Bakr

“…PbS 1– x O x ( x  = 0, 0.05, 0.1, 0.15, 0.2) samples were prepared using the solid-state reaction method at low temperature. Rietveld refinement was performed,…”
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Novel hyper branched polyaniline nanocomposites for gamma radiation dosimetry by Elhalawany, Noha, Wassel, Ahmed R., Abdelhamid, Ahmed E., Elfadl, Azza Abou, Nouh, Samir

“…Novel hyperbranched poly aniline nanocomposites have been successfully prepared. Aniline monomer has been polymerized in presence of Mn +2 ions and/or mixed Mn…”
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Bone bonding augmentation and synergetic attitude of gamma-irradiated modified borate bioglass by Okasha, Aly, Abdelghany, A.M., Wassel, Ahmed R., Menazea, A.A.

“…Samples from modified borate Hench's bioglass of nominal composition (45B2O3-24.5Na2O-24.5CaO–6P2O5 wt. %) were successfully synthesized. Both effects of…”
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Characterization of CuZnO Nanocomposite Thin Films Prepared from CuO–ZnO Sputtered Films by Abdel-wahab, M. Sh, Wassel, Ahmed R., Hammad, Ahmed H.

“…Copper oxide–zinc oxide (CuO–ZnO) thin films were prepared by a sputtering technique to examine the creation of a CuZnO thin-film nanocomposite. The base film…”
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Adjustment of morphological and dielectric properties of ZnTiO3 nanocrystalline using Al2O3 nanoparticles by Nahrawy, Amany M. El, Hammad, Ali B. Abou, Bakr, Ahmed M., Wassel, Ahmed R.

“…The effect of Al 2 O 3 nanoparticles on the crystalline phase, morphology and adjustment of dielectric properties of ZnTiO 3 nano-powder has been investigated…”
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