Dalia E. Hegazy

ORCID: 0000-0003-0752-7676
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About
Contact & Profiles
Research Areas
  • Polymer Nanocomposite Synthesis and Irradiation
  • Hydrogels: synthesis, properties, applications
  • Electrospun Nanofibers in Biomedical Applications
  • Adsorption and biosorption for pollutant removal
  • Graphene and Nanomaterials Applications
  • Advanced Drug Delivery Systems
  • Virology and Viral Diseases
  • Advanced Photocatalysis Techniques
  • Lanthanide and Transition Metal Complexes
  • Recycling and Waste Management Techniques
  • Extraction and Separation Processes
  • Cytomegalovirus and herpesvirus research
  • biodegradable polymer synthesis and properties
  • Microbial infections and disease research
  • Analytical Chemistry and Sensors
  • Herpesvirus Infections and Treatments
  • Wound Healing and Treatments
  • Fuel Cells and Related Materials
  • Chemical Synthesis and Characterization
  • Zeolite Catalysis and Synthesis
  • TiO2 Photocatalysis and Solar Cells
  • Nanoparticles: synthesis and applications
  • Bone Tissue Engineering Materials
  • Immunotherapy and Immune Responses
  • Laser-Ablation Synthesis of Nanoparticles

Egyptian Atomic Energy Authority
2014-2025

Al-Azhar University
2023

Veterinary Serum and Vaccine Research Institute
2016

National Research Centre
2012

National Water Research Center
2008-2011

Abstract Hydrogel composites comprised of N,O carboxymethyl chitosan crosslinked with different weight ratios acrylic acid and fabricated nanoclay particle were prepared via gamma irradiation at 25 kGy dose. The coded as CsAA 1 Cl, 2 Cl 3 based on the ratio to derivative. claimed hydrogels characterized by FTIR, TGA XRD. data implied that incorporation clay nanoparticles enhanced thermal stability composites; decomposition temperature increased up 500 °C for Cl. Three AFM outcomes used...

10.1007/s10904-023-02543-w article EN cc-by Journal of Inorganic and Organometallic Polymers and Materials 2023-03-01

Abstract This study focuses on enhancing the characteristics of carboxymethylcellulose (CMC) and polyvinyl alcohol (PVA) bio-based films through integration e-beam ionizing radiation nano-clay. CMC-PVA blends with varying amounts nano-clay were prepared subjected to irradiation at different doses. The resulting analyzed for properties such as water absorption, vapor transmission rate (WVTR), thermal stability, mechanical strength, structural using Fourier Transform Infrared Spectroscopy...

10.1515/ract-2024-0300 article EN Radiochimica Acta 2025-01-06

A unique natural polymer based colon specific drug carrier was prepared from carboxymethyl cellulose (CMC) and acrylic acid (AAc) in aqueous solution employing γ‐radiation induced copolymerization crosslinking. The effect of preparation conditions such as the content irradiation dose on gelation process investigated. swelling behavior hydrogels characterized by investigating time pH dependent (CMC/AAc) different CMC content. effects hydrogel composition medium indices were estimated. results...

10.1080/10601320802168751 article EN Journal of Macromolecular Science Part A 2008-06-01

A series of copolymer hydrogels 2-hydroxyethyl methacrylate (HEMA)/2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) were prepared by solution free radical polymerization using gamma irradiation. Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy techniques used to characterize the HEMA/AMPS hydrogels. The swelling behavior was determined investigating time pH-dependent different AMPS content. drug loading controlled release behaviors...

10.1080/00914037.2014.886221 article EN International Journal of Polymeric Materials 2014-05-29

Abstract Nanoporous of poly (vinylpyrrolidone)/Fe 3 O 4 @SiO 2 has been synthesized using ultrasonic‐assisted‐gamma irradiation technique and characterized by transmission electron microscopy (TEM), scanning microscope (SEM)/energy‐dispersive spectroscopy (EDX), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), Vibrating Sample Magnetometer (VSM), Brunauer–Emmett–Teller (BET). The efficiency evaluation PVP/Fe nanoporous catalyst for degradation toluidine blue (TB) sono‐photo‐Fenton...

10.1002/aoc.6388 article EN Applied Organometallic Chemistry 2021-07-22

Graft polymerization has been considered as a general method for the modification of physical and chemical properties polymeric materials particular interest synthesis hydrophilic membrane. In this study, carboxylic acid groups were introduced by radiation-induced grafting acrylic (AAc) onto non-woven polypropylene fabric (NWPP). Different irradiation doses monomer concentrations used to optimize yield. Characterization prepared graft copolymer studied employing X-ray Dif-fraction (XRD),...

10.4236/ojpchem.2012.21002 article EN Open Journal of Polymer Chemistry 2012-01-01

10.1007/s10904-012-9683-y article EN Journal of Inorganic and Organometallic Polymers and Materials 2012-04-24

Rabies is a lethal viral disease that poses great risk to both humans and animals.Therefore, there an urgent need manage it in the primary hosts, particularly dogs, by immunising them with powerful vaccines boosting their immune response provide high level of protective immunity.Following up status experimentally vaccinated different puppy's groups locally manufactured inactivated rabies vaccine via use serum neutralization test (SNT) revealed BCG induced earlier higher levels antibodies men...

10.21608/ajps.2023.332175 article EN cc-by ˜Al-œAzhar Journal of Pharmaceutical Sciences/Al-Azhar Journal of Pharmaceutical Sciences 2023-09-01

A nanocomposite biofilm based on Carboxymethylcellulose (CMC)-polyvinyl alcohol (PVA) matrix reinforced with clay was prepared by solvent-casting technique in the presence of 1% citric acid as a crosslinker and glycerol plasticizer. (CMC-PVA/clay) subjected to e-beam irradiation at different doses; 10, 20, 30 kGy enhance properties films. The results indicated that solubility water absorption are highly restricted irradiation. FTIR images XRD confirmed improved construction CMC/PVA/clay...

10.2139/ssrn.3988022 article EN SSRN Electronic Journal 2021-01-01
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