A5043871479- Polymer Nanocomposite Synthesis and Irradiation
- Radiopharmaceutical Chemistry and Applications
- Dental materials and restorations
- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Ion-surface interactions and analysis
- Extraction and Separation Processes
- Orthopaedic implants and arthroplasty
- Endodontics and Root Canal Treatments
- Gold and Silver Nanoparticles Synthesis and Applications
- Corrosion Behavior and Inhibition
- Electrospun Nanofibers in Biomedical Applications
- Nanoparticles: synthesis and applications
- Metal and Thin Film Mechanics
- Conducting polymers and applications
- Polymer Nanocomposites and Properties
- TiO2 Photocatalysis and Solar Cells
- ZnO doping and properties
- Nuclear Physics and Applications
- Laser Material Processing Techniques
- Graphite, nuclear technology, radiation studies
- Chemical Reactions and Isotopes
- Dental Implant Techniques and Outcomes
- Dental Radiography and Imaging
- Luminescence Properties of Advanced Materials
Egyptian Atomic Energy Authority
2012-2024
Tanta University
2001-2020
Rochester Institute of Technology - Dubai
2018
Ludwig-Maximilians-Universität München
2012-2015
Forschungszentrum Jülich
2010-2011
Ernst Ruska Centre
2011
Central Metallurgical Research and Development Institute
2006
To investigate the cytotoxicity and genotoxicity of a new silicate-based BioRoot RCS® sealer in comparison with contemporary sealers.A periodontal ligament cell line using lentiviral gene transfer human telomerase reverse transcriptase (hTERT) was used exposed to subtoxic concentrations 24-h eluates from two epoxy resin-based (AH Plus Jet® Acroseal® ), four various methacrylate-based endodontic sealers (EndoREZ® , RealSeal® RealSeal SE® Hybrid Root SEAL® ) three (BioRoot iRootSP® MTA...
In the present paper, surface modification of low-density polyethylene (LDPE) polymer is done by plasma-etching to tune its structure, wettability and optical behavior make it useful for technical applications. For this purpose, two gasses (N[Formula: see text] (O[Formula: are used as discharge precursors in a home-built plasma reactor. The plasma-treated LDPE etch-rate (control other properties) high at beginning slows down treatment time increases due restructuring. etched surfaces...
Abstract In many factories, which are working in the field of steel industry, there galvanization units products galvanized for corrosion protection. About 15% total amount used zinc accumulated as ash and dust at surface molten bath chimney respectively. a previous work, was successfully recovered from coarse by applying pyrometallurgical processing. this fine blend (of flue dust) hydrometallurgically treated using sulfuric acid. Two alternative techniques were applied producing sulfate...
Abstract The two Auger electron emitting radionuclides of bromine, namely 77 Br ( T 1/2 =57.04 h) and 80m =4.4 h), are promising candidates for internal radiotherapy. In this work, nuclear reaction cross sections were determined their production using enriched Se targets. Thin samples irradiated with incident protons energies up to 85 MeV the induced radioactivity was measured via non-destructive γ-ray spectroscopy, allowing determination extension excitation functions four reactions...
For innovative application in wastewater treatment techniques, MnO-Fe2O3 nanocomposites were successfully synthesized using the sol–gel auto-combustion method at different temperatures for adsorption of 137Cs and 60Co radionuclides from aqueous solution. The characterization these was carried out through FT-IR, SEM-EDX, X-ray diffraction. These employed as adsorbent materials removal simulated radioactive waste solutions. study involved a series experiments aiming to demonstrate...
Abstract Radiation shielding composites based on polyvinyl chloride (PVC) reinforced with different weight ratios of Pb(NO 3 ) 2 (5, 10, and 20 wt%) were prepared using the solution-casting technique. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy, tensile testing method used to characterize PVC composite films. FTIR XRD investigations illustrate structural change modification as-prepared composites. The...
The current work investigates the micro- and macrostructural integrity of layered structures 17-4PH stainless steel powders manufactured using direct metal laser sintering (DMLS). More specifically, a vacuum solid-state method accompanied with powder layering process has been employed. Tensile specimens according to standard ASTM E8 additive manufacturing were grown at different orientations so as realize their effect on overall microstructural integrity. 40-μm-thick parts 500 W beam sinter...
Abstract The separation of no-carrier-added (n.c.a.) radiobromine and radiogallium from an irradiated ZnSe target was developed using anion-exchange chromatography. adsorption behaviour n.c.a. radiobromine, radiogallium, macro amounts zinc selenium towards the resin Dowex 1 × 10, in Cl − OH form, investigated. Radiobromide strongly adsorbed on at a low KOH concentration, while were weakly adsorbed. recovered by 0.2 M H 2 SO 4 , followed addition KOH, evaporation redissolution residue....