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- Food irradiation (2)
- Gamma shielding (2)
- Glasses (2)
- NBR (2)
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- Antimony (1)
- Bagasse papers; antibacterial activity; mechanical tests; graphene oxide/silver nanoparticles; natural gum rosin (1)
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- Borophosphate (1)
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- ESR; EPR (1)
- Gamma radiation shielding (1)
- Graphene oxide Humidity sensors Nanocomposite Thermal analysis SEM (1)
- Lead (1)
- MWCNTs (1)
- MWCNTs ZnPc Hybrid MWCNTs Optical bandgap p-n heterojunction photodiode I-V characteristics (1)
- Mechanical properties (1)
- Metal oxides (1)
- Molybdenum (1)
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- Natural rubber (1)
- Neutron removal cross-section (1)
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- Pistachio (1)
Articles 1 - 27 of 27
Full-Text Articles in Condensed Matter Physics
A Closer Look At The Fabrication Of Some Doped Metal Ions In Borophosphate Glass System And Their Structural, Elastic, Optical, And Gamma-Ray Shielding Characteristics, Elsayed Salama, W. M. Abd-Allah, S. Marzouk, M. S. Gaafar
A Closer Look At The Fabrication Of Some Doped Metal Ions In Borophosphate Glass System And Their Structural, Elastic, Optical, And Gamma-Ray Shielding Characteristics, Elsayed Salama, W. M. Abd-Allah, S. Marzouk, M. S. Gaafar
Basic Science Engineering
Borophosphate host glasses doped with zinc oxide (ZnO), titanium dioxide (TiO2), tellurium dioxide (TeO2), or cerium oxide (CeO2) were synthesized using rapid quenching techniques. Fourier transform infrared (FTIR) spectra, along with deconvoluted FTIR spectra, were recorded in the 400–4000 cm 1 range. Using the models of Tauc and Urbach, the optical energy band gaps of these glasses were found to be 3.212, 3.289, 3.262, 3.087, and 2.475 eV respectively. Due to the incorporation of different metal ions into the prepared glasses, the density increased and the molar volume decreased, making the glass structure highly compact. Since the elastic moduli are …
Epr Study Of Irradiated Starch: Induced Radicals And Dose Assessment, Elsayed Salama, Ahmed M. Maghraby, Samy A. Anwer, M. El-Sayed
Epr Study Of Irradiated Starch: Induced Radicals And Dose Assessment, Elsayed Salama, Ahmed M. Maghraby, Samy A. Anwer, M. El-Sayed
Basic Science Engineering
Irradiation of starch is of much importance to get rid of microbes and for disinfection. EPR study of the ionizing radiation-induced radicals can lead to the assessment of radiation doses delivered during irradiation. The EPR spectra properties, microwave power saturation behavior, short- and long-term temporal dependencies, and other significant factors are studied. Response of EPR spectra of irradiated starch over the range (0.5–10 kGy) was investigated. The time dependence study of the radiation-induced signal radicals of starch showed that variation of the EPR signal can be noticed within ±7.7% relative to the average value over 38 days following irradiation. Results …
Exploring The Physical, Structural, Optical, And Gamma Radiation Shielding Properties Of Borate Glasses Incorporating Sb2o3/Moo3, Elsayed Salama, Hesham A. Yousef, Ahmed E. Hannora, Y. Assran
Exploring The Physical, Structural, Optical, And Gamma Radiation Shielding Properties Of Borate Glasses Incorporating Sb2o3/Moo3, Elsayed Salama, Hesham A. Yousef, Ahmed E. Hannora, Y. Assran
Basic Science Engineering
The 10 Na2O-(30-x) MoO3- 60H3BO3-xSb2O3 glass system was prepared using the melt-quenching technique, where 30 ≥ x ≥ 10 mol%. X-ray diffraction and Fourier transform infrared spectroscopy were used to investigate the amorphous nature of the glass structure and the impacts of MoO3 and Sb2O3. As the antimony trioxide (Sb2O3) concentration increases at the expense of molybdenum trioxide (MoO3), the density and molar volume increase, and the optical bandgap energy and refractive index also increase. The radiation shielding characteristics were measured using a NaI(Tl) scintillation detector and calculated using the Phy-X/PSD platform. The increase in Sb2O3 concentration increases the values …
Biosynthesis Of Mgo Nanoparticles And Their Impact On The Properties Of The Pva/Gelatin Nanocomposites For Smart Food Packaging Applications, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Functionalized Go Nanoplatelets With Folic Acid As A Novel Material For Boosting Humidity Sensing Of Chitosan/Pva Nanocomposites For Active Food Packaging, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Design And Implementation Of Montmorillonite Clay-Based Catalyst For Carbon Nanotube Synthesizing, Mohamed Morsy
Design And Implementation Of Montmorillonite Clay-Based Catalyst For Carbon Nanotube Synthesizing, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Synthesis And Functional Properties Of La2fecro6 Based Nanostructures, Mohamed Morsy
Synthesis And Functional Properties Of La2fecro6 Based Nanostructures, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Effective Nanomembranes From Chitosan/Pva Blend Decorated Graphene Oxide With Gum Rosin And Silver Nanoparticles For Removal Of Heavy Metals And Microbes From Water Resources, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Design And Implementation Of Humidity Sensor Based On Carbon Nitride Modifed With Graphene Quantum Dots, Mohamed Morsy
Design And Implementation Of Humidity Sensor Based On Carbon Nitride Modifed With Graphene Quantum Dots, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Synthesis And Characterization Of Nonstoichiometric Cobalt/ Cnts Nano Composites For Multifunctional Applications, Mohamed Morsy
Synthesis And Characterization Of Nonstoichiometric Cobalt/ Cnts Nano Composites For Multifunctional Applications, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Development Of Sustainable Radiation-Shielding Blend Using Natural Rubber/Nbr, And Bismuth Filler, Elsayed Salama, Ola Aziz, Doaa E. El-Nashar, Assem Bakry
Development Of Sustainable Radiation-Shielding Blend Using Natural Rubber/Nbr, And Bismuth Filler, Elsayed Salama, Ola Aziz, Doaa E. El-Nashar, Assem Bakry
Basic Science Engineering
This research entailed the production of composite materials through the combination of natural rubber and acrylonitrile butadiene rubber, along with nano-silica-loaded bismuth (III) oxide, in varying concentrations ranging from 0 to 45 parts per hundred parts of rubber (phr). The gamma attenuation properties of the composites at different concentrations of Bi2O3 were measured. Additionally, the mechanical properties of the resulting composites, including hardness, tensile strength, and elongation, were tested. The composites with a concentration of 20 phr exhibited the highest tensile strength and elongation at break, followed by a subsequent decrease as the concentration of Bi2O3 increased. The gamma mass-attenuation …
Gamma Attenuation And Mechanical Characteristics Of A Lead/Nbr/Sbr Rubber Composite With Black Nanocarbon Reinforcement, Elsayed Salama, Romisaa Gamal, Hassan Elshimy, Doaa E. El-Nashar, Assem Bakry, Mohamed Ehab
Gamma Attenuation And Mechanical Characteristics Of A Lead/Nbr/Sbr Rubber Composite With Black Nanocarbon Reinforcement, Elsayed Salama, Romisaa Gamal, Hassan Elshimy, Doaa E. El-Nashar, Assem Bakry, Mohamed Ehab
Basic Science Engineering
In this work, black nanocarbon-loaded 0–100 parts-per-hundred (phr) PbO-filled acrylonitrile butadiene rubber (NBR)/styrene-butadiene rubber (SBR) blend composites were prepared by using an ordinary standard rubber mixer. Both mechanical and gamma attenuation properties of the prepared samples were investigated. Maximum tensile strength and elongation at break were obtained at 40 phr PbO concentration. The obtained values for the mass attenuation coefficient with the increased PbO concentration from 0–100 phr ranged from 0.12–0.22 cm2/g at 0.239 MeV. Scanning electron microscope (SEM) with the elemental mapping analysis results showed high homogeneity at 40 phr of the prepared rubber composites, with some areas of …
Highly Efficient Photocatalysts For Methylene Blue Degradation Based On A Platform Of Deposited Go-Zno Nanoparticles On Polyurethane Foam, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Oil/Water Separation And Functionality Of Smart Carbon Nanotube–Titania Nanotube Composite, Mohamed Morsy
Oil/Water Separation And Functionality Of Smart Carbon Nanotube–Titania Nanotube Composite, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Preparation, Investigation, And Temperature Sensing Application Of Rgo/Sno2/Co3o4 Composite, Mohamed Morsy
Preparation, Investigation, And Temperature Sensing Application Of Rgo/Sno2/Co3o4 Composite, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Promoting The Humidity Sensing Capabilities Of Titania Nanorods/Rgo Nanocomposite Via De-Bundling And Maximizing Porosity And Surface Area Through Lyophilization, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Modeling The Electronic Properties For Cnt Interacted With Zno, Cuo, And Co3o4, Mohamed Morsy
Modeling The Electronic Properties For Cnt Interacted With Zno, Cuo, And Co3o4, Mohamed Morsy
Nanotechnology Research Centre
Because of the wide applications of carbon nanotubes (CNTs) and magic properties of metal oxides, Hartree–Fock quantum mechanical calculations at HF/STO-3G were applied to study the electronic properties of CNTs and their interaction with ZnO, CuO, and Co 3O4. Calculations were conducted to calculate HOMO/LUMO bandgap energy ∆E, molecular electrostatic potential (MESP), and total dipole moment (TDM) for CNTs, CNTZn-O, CNT-Cu-O, CNT-Co-O, and CNT-O-Zn, CNT-O-Cu, CNT-O-Co following the two mechanisms of interaction as adsorbed and complex state. The calculations show that the interaction of CNTs with metal oxides increases its reactivity where MESP indicated to more distribution charges and an …
Modeling The Electronic Properties For Cnt Interacted With Zno, Cuo, And Co3o4, Mohamed Morsy
Modeling The Electronic Properties For Cnt Interacted With Zno, Cuo, And Co3o4, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Bio-Based Antibacterial Packaging From Decorated Bagasse Papers With Natural Rosin And Synthesised Go-Ag Nanoparticles, Mohamed Morsy
Bio-Based Antibacterial Packaging From Decorated Bagasse Papers With Natural Rosin And Synthesised Go-Ag Nanoparticles, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Microwave-Assisted Synthesis Of Co-Doped Sno2/Rgo For Indoor Humidity Monitoring, Mohamed Morsy
Microwave-Assisted Synthesis Of Co-Doped Sno2/Rgo For Indoor Humidity Monitoring, Mohamed Morsy
Nanotechnology Research Centre
The evaluation of indoor humidity is challenging compared to other environmental parameters such as light intensity, temperature, sound and so forth. The proper selection of sensing materials and structural tuning will lead to high-performance humidity sensors. Herein, the SnO2/rGO and SnO2/rGO doped with Co nanocomposite were produced by microwave route. The obtained nanocomposite was characterized by XRD, SEM, EDAX, DTA, TGA, FTIR, Raman, and HRTEM. The successful incorporation of Co onto the rGO/SnO2 is affrmed by the XRD and supported with matching SEM and TEM outcomes where nanoscale particles exist. FTIR reveals the existence of the C– –C stretching band …
Investigating The Mechanical Performance Of Nano Additives Reinforced High-Performance Concrete, Mohamed Morsy
Investigating The Mechanical Performance Of Nano Additives Reinforced High-Performance Concrete, Mohamed Morsy
Nanotechnology Research Centre
It is known that nanomaterials have been broadly employed worldwide as reinforcements for the production of high-strength and high mechanical performance concrete-based structures. Hereinafter, high-performance concrete (HPC) modifed with three types of additives were synthesized: exfoliated nano clay (NC), nano-silica (NS), and hybrid particles [silica fume (SF) & limestone (LS)]. The compressive, splitting tensile and flexural strengths, were investigated at 28 days of hydration. The exfoliated NC was simply prepared via exfoliating the thermally activated ordinary clay with the aid of organic ammonium chloride. The results revealed that all types of the employed additives provided an augmentation in the mechanical …
Identification And Dosimetry Of Irradiated Pistachio (Pistacia Vera L.) Using Epr, Elsayed Salama, Ahmed M. Maghrabya, Samy A. Anwar, M. El-Sayed
Identification And Dosimetry Of Irradiated Pistachio (Pistacia Vera L.) Using Epr, Elsayed Salama, Ahmed M. Maghrabya, Samy A. Anwar, M. El-Sayed
Basic Science Engineering
In the current study, the EPR signal of both gamma-irradiated shell and kernel of the pistachio is recorded and investigated. The spectrum properties, microwave power dependency of signal intensities, short- and long-term temporal dependencies, and other significant factors are studied. This investigation was done on how varying radiation doses (0–10 kGy) affected the reactions of pistachio shells and kernels. The time dependence of the radiation-induced signal intensity of pistachio showed that the maximum intensity reached about 98.75% and 67% of its original value for shells and kernels, respectively, after the first six hours. These results indicate that EPR is an …
Functionalized Multimetal Oxideecarbon Nanotube-Based Nanocomposites And Their Properties, Mohamed Morsy
Functionalized Multimetal Oxideecarbon Nanotube-Based Nanocomposites And Their Properties, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Preparation And Characterization Of Multiwall Carbon Nanotubes Decorated With Copper Oxide, Mohamed Morsy
Preparation And Characterization Of Multiwall Carbon Nanotubes Decorated With Copper Oxide, Mohamed Morsy
Nanotechnology Research Centre
Multi-walled carbon nanotubes (MWCNTs) are special form of carbon nano materials with amazing applications in many areas of research.MWCNTs were synthesized by anAtmospheric Chemical Vapor Deposition (ACVD) system then decorated on their surface with Copper Oxide (CuO) nanoparticles via the hydrothermal method. The prepared un-purifiedMWCNTs and purified MWCNTs were characterized by High Resolution Transmittance Electron Microscope (HRTEM), Xray Diffraction (XRD) and Raman spectroscopy. As well as the CuO/MWCNTs nanocomposite was characterized by HRTEM, XRD, Fourier Transform Infra-Red Spectroscopy (FTIR), Thermogravimetric Analysis (TGA) Differential Thermal Analysis (DTA) and Raman spectroscopy. The results demonstrated the distribution of CuO nano particles on the …
Carbon Nano Based Materials And Their Composites For Gas Sensing Applications: Review, Mohamed Morsy
Carbon Nano Based Materials And Their Composites For Gas Sensing Applications: Review, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Stimulating Photodiode Characteristics Of Hybrid Znpc-Mwcnts, Mohamed Morsy
Stimulating Photodiode Characteristics Of Hybrid Znpc-Mwcnts, Mohamed Morsy
Nanotechnology Research Centre
The ability to functionalize multi-wall carbon nanotubes (MWCNTs) with organic semiconductors is a promising methodology to promote their use in multiple optoelectronic applications, especially at the visible region of the optical spectra. In this article, we investigate the structural, optical, and electrical properties of chemically synthesized MWCNTs hybridized with zinc phthalocyanine (ZnPc) molecules. Interestingly, the hybrid ZnPc-MWCNTs optical bandgap shifts towards the visible light at 2.6 eV instead of the near-infrared bandgap of the pristine sample at 1.2 eV. Besides, the ZnPc-MWCNTs hybrid exhibits enhanced p-n heterojunction photodiode characteristics that are signifcantly improved with temperature increase. Moreover, the I-V curves …