Article
Polymer Science
Susilawati Susilawati, Saiful Prayogi, Muhamad F. Arif, Noor Maizura Ismail, Muhammad Roil Bilad, Muhammad Asy'ari
Summary: The study evaluates the optical properties and conductivity of PVA-H3PO4 polymer film blend irradiated by gamma rays. The optical absorption, absorption edge, and energy gap decrease with increasing H3PO4 concentration and radiation dose, indicating an interaction between PVA and H3PO4 blend that leads to an increase in the conductivity of the resulting polymer blend film.
Article
Engineering, Electrical & Electronic
B. Alshahrani, H. ElSaeedy, S. Fares, A. H. Korna, H. A. Yakout, M. I. A. Abdel Maksoud, Ramy Amer Fahim, A. H. Ashour, A. S. Awed
Summary: The influence of gamma irradiation on PVA/Zn0.5Co0.4Ag0.2Fe2O4 nanocomposite films was investigated, revealing changes in structural, optical, and dispersion properties. Increasing irradiation doses led to changes in energy gap and Urbach's energy, while also affecting oscillator energy and dielectric constant. Overall, the irradiated films exhibited potential for optoelectronic devices and photocatalytic applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
O. Norfazlinayati, Z. A. Talib, H. Mohd Hamzah, N. G. Nik Salleh, A. H. Shaari
Summary: In this study, PANI/functionalized CNT/PVA nanocomposites were prepared using gamma irradiation technique, and their optical properties were investigated. The results showed a decrease in bandgap with increasing irradiation dose, indicating specific interaction between PANI and functionalized CNT. The surface morphology also revealed an increased thickness of the functionalized tube after irradiation, suggesting wrapping of PANI onto the CNT wall.
Article
Optics
Houda Kaouach
Summary: PEO/PVA blends were studied for the effect of gamma radiation on their structural, morphological and photoluminescence properties. XRD, ATR-FTIR, optical microscopy and PL were used to examine the non-irradiated and irradiated samples with a radiation dose of 10 kGy. Gamma photons induced important chemical rearrangements, especially in PVA hydroxyl groups. The crystallinity rate was found to be strongly influenced by radiation. The blend samples exhibited core-shell nanoparticle behavior due to the luminescence properties, with PVA acting as the shell.
Article
Chemistry, Physical
D. G. El-Damhogi, E. ELesh, Ahmed H. Ibrahim, S. Mosaad, M. M. Makhlouf, Z. Mohamed
Summary: This study investigated the effects of gamma rays on gallium phthalocyanine chloride thin films, finding that gamma rays have a significant impact on the structural and optical characteristics of the films.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Sultan J. Alsufyani
Summary: Polyvinyl alcohol films reinforced with reduced graphene oxide (PVA/rGO) were synthesized by the film casting method. The study found that the structure and spectra of PVA/rGO films changed significantly after γ-ray irradiation. The absorbance spectra of PVA/rGO films showed distinct behaviors at different γ-doses, and the linear refractive index (n) increased with the γ-doses.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Sameh. I. Ahmed
Summary: Nano gadolinium oxide doped polyvinyl alcohol/polyethylene glycol blend was prepared and its structural, thermal, and optical properties were investigated. The doping of nano Gd2O3 affected the melting temperature and degradation temperature of the blend, as well as its optical characteristics.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
M. A. Nuriyev, A. I. Gasimova, A. A. Nabiyev, A. A. Shukurova, I. M. Nuruyev
Summary: PVA/CdS nanocomposites were formed by sorbing anions and cations from a solution of salts into the pores of polyvinyl alcohol (PVA), resulting in CdS nanoparticles at 1, 3, 5, and 10 cycles. A comparative analysis of electrical properties of the original and gamma-irradiated samples revealed that changes in electrical properties under gamma radiation were attributed to alterations in crosslinking, degradation, and oxidation processes at both the matrix and polymer-filler interface.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Materials Science, Composites
M. A. Morsi, G. M. Asnag, A. Rajeh, Nasser S. Awwad
Summary: Gold nanoparticles were successfully prepared using Morus nigra leaf extract and incorporated into a polymer nanocomposite film. Laser irradiation affected the properties of the composite film, with changes observed in electrical conductivity, dielectric permittivity, and optical band gap tuning. The study demonstrated the multifunctionality of these biodegradable polymer nanocomposites for flexible electronic and optoelectronic devices.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Pooja Sarker, Sapan Kumar Sen, M. N. H. Mia, M. F. Pervez, A. A. Mortuza, Sazzad Hossain, M. F. Mortuza, M. H. Ali, Salahuddin Nur, Humayun Kabir, M. A. M. Chowdhury
Summary: This study explores the significant impacts of gamma irradiation on CuO thin films prepared using thermal spray pyrolysis technique on glass substrates. The research reveals changes in crystallographic, microstructural, and optical characteristics of the films, including a decrease in crystallite size, increase in dislocation density and lattice strain, as well as a reduction in optical energy band gap energies.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ali Badawi, Sultan J. Alsufyani, Sami S. Alharthi, M. G. Althobaiti, Ali A. Alkathiri, Mansour Almurayshid, Abdulaziz N. Alharbi
Summary: The study showed that the structural and optical properties of PVA/graphene polymeric composites incorporated with lead oxide were modified by exposure to gamma irradiation. The linear and nonlinear optical parameters of the composites were enhanced by controlling the gamma-irradiation dose, especially in the UV region. These findings suggest potential applications of the composites in dosimetry and shielding devices.
Article
Materials Science, Multidisciplinary
M. I. A. Abdel Maksoud, Soraya Abdelhaleem, Eman K. Tawfik, Ahmed G. Bedir, Asmaa S. Morshedy
Summary: This study investigated the effects of different doses of gamma irradiation on the structural, thermal, photoluminescence, and optical properties of PVA/Gd2O3 nanocomposite films. It was found that gamma irradiation significantly influenced the thermal stability of the films, as well as the energy gap and Urbach's energy. The results suggest that irradiated PVA/Gd2O3 nanocomposite films are promising materials for flexible optoelectronic devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
B. A. El-Badry, Nawal Madkhali, A. M. Deghady
Summary: Improving the properties of ZnO nanocomposite can be achieved by grafting with natural eumelanin and gamma radiation treatment, resulting in changes in crystallinity, bond strength, bandgap energy, and electrical conductivity. The ease of use and potential for new applications make this a promising avenue for soft conductors.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Physical
Mustafa Muradov, Mahammad Baghir Baghirov, Goncha Eyvazova, Lala Gahramanli, Sevinj Mammadyarova, Gunel Aliyeva, Elchin Huseynov, Mahammadali Abdullayev
Summary: Graphene oxide (GO) was prepared and mixed with polyvinyl alcohol (PVA) at different weight concentrations. The GO and GO/PVA nanocomposites were exposed to gamma radiation at different doses, leading to structural, optical, and morphological changes. XRD, TEM, EDS, and UV-Vis spectroscopy were used to analyze these changes. The study observed decomposition and oxidation of residual graphite under the influence of gamma radiation, and a decrease in the band gap value with increasing radiation dose.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
M. A. Ouis, M. A. Marzouk, F. H. ElBatal
Summary: Extended glasses with high NaF contents were synthesized and characterized using optical and FTIR spectral analysis. NaF was found to convert some of the BO3 units and form tetrahedral structures. The thermal expansion data indicated an increase in softening temperature due to the formation of compact tetrahedral units. Gamma irradiation did not affect the structural building groups, but caused displacement in the optical spectra.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Multidisciplinary
M. T. Elabbasy, M. F. H. Abd El-Kader, A. M. Ismail, A. A. Menazea
Summary: In this study, Chitosan/PVP/Bi2O3 nanocomposite films were synthesized via laser ablation, leading to the breaking of bond chains in Chitosan/PVP, resulting in improved electrical conductivity and antibacterial efficiency. The addition of Bi2O3 NPs at different laser ablation times enhanced the conductive paths among filler particles and increased the number of charge carriers, ultimately improving the conductivity and antibacterial activity of the composite material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Coatings & Films
M. F. H. Abd El-Kader, M. K. Ahmed, M. T. Elabbasy, M. Afifi, A. A. Menazea
Summary: The study focused on developing innovative biomaterial compositions for hard tissue regeneration using pulsed laser deposition (PLD) technique. Results showed changes in surface morphology, roughness, and mechanical properties of hydroxyapatite (HAP) sputtered on alumina substrates at different exposure times. The attachment behavior of human osteoblasts towards the obtained scaffolds demonstrated cell proliferation and coverage, suggesting the potential for innovative scaffold design based on tailored bioactive material depositions on inert biomaterials.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Composites
Nasser S. Awwad, M. F. H. Abd El-Kader, Hala A. Ibrahium, G. M. Asnag, M. A. Morsi
Summary: In this study, Chitosan-PVA blend embedded with various ratios of gold/silver nanoparticles were synthesized using a casting method. The addition of gold and silver nanoparticles affected the optical and structural properties of the material, while also improving the electrical conductivity of the composite films.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Munir Ahmad, Muhammad Tauseef Qureshi, Wajid Rehman, Nouf H. Alotaibi, Anadil Gul, Reda S. Abdel Hameed, Mahmoud Al Elaimi, M. F. H. Abd El-kader, Muhammad Nawaz, Rizwan Ullah
Summary: In this study, ZnO and Ag@ZnO nanoparticles based photocatalyst were synthesized using pecan nut leaf extract for the first time, with phytochemicals acting as capping and reducing agents. The catalyst showed enhanced catalytic properties after Ag doping, with optimal performance at pH 10 and following a pseudo first order kinetic model for RhB dye degradation. The reusability test demonstrated high stability of the catalyst even after 5 cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
A. A. Menazea, Hamza M. Assaggaf, Saad Alghamdi, Essam Hassan Eldrehmy, Mohamed T. Elabbasy, M. F. H. Abd El-Kader
Summary: Nanocomposite scaffolds based on PVDF were created using various ratios of silver/selenium nanoparticles generated via laser ablation. XRD, FTIR, and HR-TEM were used to analyze the nanocomposite membrane, confirming the interaction between PVDF and (Ag@Se) nanoparticles. The compositions showed significant antibacterial activity and removal efficiency of methylene blue in both dark and light conditions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
M. F. H. Abd El-Kader, Mohamed T. Elabbasy, A. A. Adeboye, A. A. Menazea
Summary: This study investigates the interaction between PVA/PVP composite and copper oxide nanoparticles, explores the antibacterial activity of the nanocomposite system, and demonstrates that CuO NPs reduce the crystallinity of the composite system, indicating thermal stability of the prepared sample and potential biomedical applications for the nanocomposite materials.
Article
Materials Science, Multidisciplinary
Nasser S. S. Awwad, Hala A. A. Ibrahium, M. F. H. Abd El-Kader, H. Elhosiny Ali, Ayman M. M. Mostafa, A. A. Menazea
Summary: In this study, chitosan-PEO/V2O5 NPs composite films were successfully synthesized using one-potential laser ablation method. The properties of the synthesized films were characterized using XRD, UV-Vis, SEM, and Ac conductivity. The results showed the complexation between V(2)O(5) NPs and chitosan-PEO matrix, and a decrease in optical bandgap after doping with V2O5 NPs. The AC conductivity also exhibited frequency-dependent behavior.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Mohammed S. Al Mogbel, M. T. Elabbasy, M. F. H. Abd El-Kader, Rasha Samir Mohamed, Moustapha E. Moustapha, A. A. Menazea
Summary: Hydroxyapatite, tellurium(IV) oxide, and graphene oxide were successfully combined to form binary and ternary nanocomposites. The structural and morphological characteristics of these composites were confirmed using various methods. The results showed that the ternary composite had the highest aggregation degree, roughness, antibacterial activity, and microhardness. These findings are significant for biomedical applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Tahir Iqbal, Maria Ashraf, Sumera Afsheen, Arslan Masood, Muhammad Tauseef Qureshi, Sofian Talal Obediat, Mahmoud Fawzy Hamed, Mohamed S. Othman
Summary: In this study, a facile and cost-effective technique was used to synthesize CuS-CQD for waste water purification, demonstrating high photocatalytic activity and stability. The 4% CuS-CQD exhibited better performance in optical and photoluminescence spectrum testing. A visible-light driven photocatalytic mechanism for the degradation of Panadol by CuS-CQD was proposed based on experimental results and literature reports.
Article
Materials Science, Multidisciplinary
Mohamed T. Elabbasy, Fahad D. Algahtani, Helal F. Al-Harthi, M. F. H. Abd El-Kader, Essam Hassan Eldrehmy, Ghada I. Abd El-Rahman, M. A. El-Morsy, A. A. Menazea
Summary: The HAP/B2O3/GO nanocomposite exhibits a porous integrated structure with excellent antibacterial properties, making it a promising bone substitute biomaterial.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Physics, Multidisciplinary
Saeed Ullah, Jehan Akbar, Muhammad Tauseef Qureshi, Mahmoud Al Elaimi, M. F. H. Abd El-Kader, Muhammad Usman, Bakht Amin Bacha
Summary: This study investigates the superluminal propagation of light in a four-level atomic medium. It is found that the superluminal propagation of the probe field can be controlled and modified by adjusting the strength and waists of control driving fields. The localized depth of absorption and dispersion are observed around the origin of Laguerre coordinates in the x, y plane. Changing the beam waist can narrow or broaden the localized depth of absorption and dispersion. At a low beam waist, negative group index and negative group velocity are observed, while at a high beam waist, group index and group velocity remain the same, indicating superluminal behavior. These findings have potential applications in gravitational wave detection, soliton radar systems, and computer processing acceleration.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Materials Science, Multidisciplinary
Muteb H. Alshammari, Ahmed Onayzan Alshammari, Mohamed Tharwat Elabbasy, Rafat Zreiq, M. A. El-Morsy, A. A. Menazea, M. F. H. Abd El-Kader
Summary: In order to enhance the antimicrobial potential of hydroxyapatite (HAp), it has been incorporated into various nanocomposites (NCs) with different structures. The HAp/tungsten oxide/graphene oxide (GO) ternary nanocomposite shows an improved cell viability of 96.7 +/-3% for osteoblast cells. Analytical techniques such as XRD, FTIR, XPS, and EDS confirm the chemical compositions. The HAp/WO3/GO composite exhibits a significant improvement in anti-microbial activity with 85.6 +/- 1.6% and 110.1 +/- 2.0% for E. coli and S. aureus, respectively.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Biomedical
Mohamed Tharwat Elabbasy, Muteb H. Alshammari, Rafat Zrieq, Rasha M. El Bayomi, Asmaa B. M. B. Tahoun, M. A. El-Morsy, M. F. H. Abd El-Kader
Summary: Burns increase the risk of infection, so the development of an effective antibacterial dressing for wound healing is crucial. This study focuses on fabricating biodegradable polycaprolactone (PCL) films using a simple and cheap polymer casting method, with the addition of hydroxyapatite (HAP), cuprous oxide (Cu2O) NPs, and graphene oxide (GO) nanosheets. These components effectively prevent colonization and modify the wound dressing. The incorporation of these components reduces the contact angle of PCL and exhibits high cell viability and excellent antibacterial activity.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Reda S. Abdel Hameed, Mahmoud AlElaimi, M. T. Qureshi, M. F. H. Abd el-kader, Amr M. Nassar, Meshari M. Aljohani, Enas Arafa
Summary: The study focused on green recycling of PET plastic waste to produce a corrosion inhibitor for carbon steel alloy in marine environment. The inhibitor showed increased efficiency with higher concentrations and decreased efficiency at higher temperatures. Overall, the research demonstrated that the inhibitor derived from plastic waste acts as an effective green corrosion inhibitor for steel in marine environments.
EGYPTIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Reda S. Abdel Hameed, Mahmoud AlElaimi, M. T. Qureshi, O. A. Farghaly, M. F. H. Abd el-kader
Summary: In this study, an efficient solvent-free green glycolysis process was used to treat polyethylene terephthalate plastic waste, transforming it into Bis-(3-hydroxy-propyl)-terephthalate as a non-ionic surfactant. By measuring parameters such as surface tension and conducting thermodynamic calculations, the surface properties and adsorption process of the prepared surfactant were investigated.
EGYPTIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Honggyun Kim, Jamal Aziz, Vijay D. Chavan, Deok-kee Kim
Summary: Silicon nitride films were prepared using plasma enhanced chemical vapor deposition with different trap densities induced by adjusting the RF power ratio. It was found that the film's trap density was lowest under compressive stress and increased under tensile stress. This study has significant implications for the formation of durable nitride films in various electronic and optoelectronic applications.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Qiang Yu, Huwei Zhao, Yue Zhao
Summary: Zinc oxide thin films and Al-doped zinc oxide films were prepared and characterized in this study. The addition of Al ions was found to change the growth orientation, increase the grain size, and enhance the absorption intensity in the visible light region. Furthermore, the addition of Al ions also increased the forward current in the heterojunction.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Sang Woo Lee, Min Sun Park, Sangwon Wi, So Yeon Lim, Yeseul Lee, Jin-Seok Chung, Sang Mo Yang
Summary: In this study, we investigated the dynamics of domain switching in pristine and fatigued BiFeO3 capacitors through experimental observations and measurements. The results showed that the switching in the pristine capacitors was dominantly driven by domain growth, while the fatigued capacitors exhibited two different switching dynamics, in which nucleation played a critical role.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Boshi Wang, Tianyi Wang, Yufang Liu, Kun Yu
Summary: In this paper, a tunable and anisotropic perfect absorber composed of anisotropic black phosphorus (BP) and isotropic graphene is proposed. The structure exhibits high absorption and strong anisotropic plasma response. The resonance characteristics can be effectively controlled by adjusting geometric parameters and doping levels, offering potential applications.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xiaolan Liu, Chunyang Li, Tonghui Yang, Naiqiang Yin, Gangling Zhao
Summary: Water drop triboelectric nanogenerators (WD-TENGs) can harvest energy from raindrops and improve the output performance of TENGs.
CURRENT APPLIED PHYSICS
(2024)
