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Computer-based identification of olive oil components as a potential inhibitor of neirisaral adhesion a regulatory protein

Research Abstract
Research Authors
Riyadh Ahmed Atto Al-Shuaeeb, AA Yassin, Mahmoud AA Ibrahim, HR Abd El-Mageed, MA Ghandour, MM Khalil
Research Department
Research Journal
Journal of Biomolecular Structure and Dynamics
Research Member
Research Pages
1-8
Research Publisher
Taylor & Francis
Research Rank
دولي
Research Vol
41(5)
Research Year
2023

Multiple Phase Stepping Generation in Alkali Metal Atoms: A Comparative Theoretical Study

Research Authors
2. Abu Mohamed Alhasan, Abeer S. Altowyan, A. Y. Madkhli, and Salah Abdulrhmann
Research Date
Research Department
Research Journal
Appl. Sci.
Research Pages
3670
Research Vol
13(6)
Research Year
2023

Impact of α-factor, combined optical phase and gain saturation on the onset of chaos of short external cavity semiconductor lasers

Research Authors
1. Salah Abdulrhmann, Jabir Hakami, Abu Mohamed Alhasan, Abeer S. Altowyan, and Gamal Afifi
Research Date
Research Department
Research Journal
Optik - International Journal for Light and Electron Optics
Research Pages
171030
Research Vol
286
Research Year
2023

Thermal stimulated structural transformation of cubic Zn0.78Cd0.22S nanoparticles to ZnO nano-hexagons: Tailoring of optical band gap and emission spectra for optoelectronic implementations.

Research Abstract

Ternary alloys of Zn0.78Cd0.22S nanoparticles (NPs) are synthesized via the facile co-precipitation technique. The as-synthesized sample exhibits a zincblende-type cubic phase with an average crystalline size of 2 nm. Thermal annealing and UV irradiation are utilized as post-treatment processes for tailoring the optical properties of Zn0.78Cd0.22S NPs. The as-synthesized sample exhibits a stable cubic phase up to 400 °C, during which partial phase transformation to a hexagonal structure is observed at a higher temperature of 500 °C. The oxidation of Zn0.78Cd0.22S NPs to mixed oxide phases with the majority of ZnO begins at 600 °C which induces morphology transformation to a relatively large nano-hexagon with a single crystalline domain size. The increase of the annealing temperature is accompanied by a decrease of Zn0.78Cd0.22S NPs optical band gap (Eg) due to the weakness of size confinement as well as the formation of localized states below the mobility band edges. The brief UV irradiation results in the increase of Eg whereas a further increase in exposure time is accompanied by a reduction of Eg. The photoluminescence (PL) spectrum of the as-synthesized sample covers a wide spectral range from UV to visible. Thermal annealing has a slight effect on the PL emission at high excitation energy, whereas low excitation energy reveals higher sensitivity to deep-state emission. Thermal oxidation incorporates a high concentration of oxygen-related defects that induce strong enhancement in the green emission at the expense of UV emission. This indicates the thermal-induced bleaching of shal

Research Authors
M.A. Osman, A.G. Abd-Elrahim, E.R. Shaaban, and Manar A. Ali
Research Date
Research Department
Research Journal
Journal of Alloys and Compounds
Research Pages
171000
Research Publisher
Elsevier
Research Rank
International Journal
Research Vol
961
Research Website
https://doi.org/10.1016/j.jallcom.2023.171000
Research Year
2023

Superhydrophobic aluminum surfaces with nano-micro hierarchical composite structures: A novel and sustainable approach to corrosion protection

Research Abstract

The unique properties of aluminum (Al) and its alloys make Al one of the most versatile, economical, and widely-used materials in various industries. However, the corrosion and leaching of Al can cause significant issues for the lifetimes of mechanical structures and machine components as well as environment and health problems. In the present study, a simple, eco-friendly, and rapid fabrication of superhydrophobic Al surfaces was introduced. The superhydrophobic Al surfaces with hierarchical composite structures combining microstructures prepared by laser texturing, the new formation of pseudo-boehmite nanostructures prepared by boiling water treatment, and low surface energy prepared by silicone oil heat treatment showed excellent corrosion resistance. The mechanism for wettability change and anti-corrosion were analyzed. The influence of laser parameters and surface modification procedures on the wettability and corrosion resistance of Al surfaces was also analyzed systematically through a series of surface characterization techniques, potentiodynamic polarization tests, and electrochemical impedance spectroscopy tests. The corrosion protection efficiency of the fabricated superhydrophobic Al surface has reached up to 99.40 % as compared with an untreated flat surface. Furthermore, the fabricated superhydrophobic surfaces show good stability even after prolonged exposure to air, fresh water, seawater, and high temperature environments. The performance of the non-wetting surfaces is demonstrated through self-cleaning, water jetting, and water droplet bouncing phenomena. This research provides a novel and sustainable approach for superhydrophobic metal surfaces and improved corrosion resistance for potential practical applications.

Research Authors
Ngoc Giang Tran , Doo-Man Chun, and A.G. Abd-Elrahim
Research Date
Research Department
Research Journal
Journal of Alloys and Compounds
Research Pages
170907
Research Publisher
Elsevier
Research Rank
International Journal
Research Vol
960
Research Website
https://doi.org/10.1016/j.jallcom.2023.170907
Research Year
2023

Biomonitoring of heavy metals using Contracaecum quadripapillatum (Nematoda) in comparison to its fish host, Lates niloticus, from the Nile River, Egypt

Research Abstract
Research Date
Research Department
Research Journal
Environmental Monitoring and Assessment
Research Publisher
Springer International Publishing
Research Year
2023

Machine Learning-Assisted Prediction of the Biological Activity of Aromatase Inhibitors and Data Mining to Explore Similar Compounds

Research Abstract
Research Authors
Muhammad Ishfaq, Muhammad Aamir, Farooq Ahmad, Abdelazim M Mebed, Sayed Elshahat
Research Date
Research Department
Research Journal
ACS omega
Research Publisher
American Chemical Society
Research Year
2022

Multidimensional modeling assisted mining of GDB17 chemical database: A search for polymer donors for organic solar cells and machine learning assisted performance prediction

Research Authors
Abdelazim M Mebed, Hasnain Mehdi Jafri, A Hakamy, Alaa M Abd‐Elnaiem, Muhammad Sulaman, Sayed Elshahat
Research Date
Research Department
Research Journal
International Journal of Quantum Chemistry
Research Publisher
John Wiley & Sons, Inc.
Research Year
2022

One-dimensional topological photonic crystal for high-performance gas sensor

Research Abstract
Research Authors
Sayed Elshahat, Zain Elabdeen A Mohamed, Alaa M Abd-Elnaiem, Zhengbiao Ouyang, Mohamed Almokhtar
Research Date
Research Department
Research Journal
Micro and Nanostructures
Research Pages
207447
Research Publisher
Elsevier
Research Vol
172
Research Year
2022
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